Physics of Metals and Metallography最新文献

英文中文

Micromagnetic Simulation of Ferromagnetic Resonance in a Nanosized Bilayer Exchange-Coupled Square-Shaped Ferromagnetic Film 纳米级双层交换耦合方形铁磁薄膜中铁磁共振的微磁模拟

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-04-21 DOI: 10.1134/s0031918x23602378

N. V. Shulga, R. A. Doroshenko

Abstract

A numerical method for computing ferromagnetic resonance (FMR) is adapted for a confined bilayer exchange-coupled film. In this method, the system is unbalanced from the equilibrium by a short weak external magnetic field, and then the OOMMF micromagnetic simulation package is used to simulate the system’s return to equilibrium and to record the resulting magnetization dynamics. After performing the Fourier transform of the time series of magnetization variation, the frequency dependences of the spectral density are calculated. The resonance frequencies are determined by correlating the maxima of these dependences with their corresponding frequencies. The study concerns the main modes and corresponding distributions of magnetization excitation in films of varying sizes when the constant magnetic field changes from saturating to zero. The FMR has been investigated, specifically, for the earlier studied vortex distribution of magnetization in the normal state. It is shown that the transition of the main mode to the low-frequency region occurs when the intensity of the external magnetic field decreases. This technique can be used to analyze the dynamic properties of multiferroic heterostructures in the future.

摘要一种计算铁磁共振（FMR）的数值方法适用于约束双层交换耦合膜。在该方法中，通过一个短的弱外部磁场使系统失去平衡，然后使用 OOMMF 微磁模拟软件包模拟系统恢复平衡并记录由此产生的磁化动态。对磁化变化的时间序列进行傅立叶变换后，计算出频谱密度的频率相关性。共振频率是通过将这些相关性的最大值与其相应频率相关联而确定的。研究涉及恒定磁场从饱和到零变化时，不同尺寸薄膜中磁化激发的主要模式和相应分布。特别是针对之前研究过的正常状态下的磁化涡旋分布，研究了调频激磁。研究表明，当外部磁场强度减弱时，主模式会过渡到低频区。这项技术今后可用于分析多铁性异质结构的动态特性。

{"title":"Micromagnetic Simulation of Ferromagnetic Resonance in a Nanosized Bilayer Exchange-Coupled Square-Shaped Ferromagnetic Film","authors":"N. V. Shulga, R. A. Doroshenko","doi":"10.1134/s0031918x23602378","DOIUrl":"https://doi.org/10.1134/s0031918x23602378","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>A numerical method for computing ferromagnetic resonance (FMR) is adapted for a confined bilayer exchange-coupled film. In this method, the system is unbalanced from the equilibrium by a short weak external magnetic field, and then the OOMMF micromagnetic simulation package is used to simulate the system’s return to equilibrium and to record the resulting magnetization dynamics. After performing the Fourier transform of the time series of magnetization variation, the frequency dependences of the spectral density are calculated. The resonance frequencies are determined by correlating the maxima of these dependences with their corresponding frequencies. The study concerns the main modes and corresponding distributions of magnetization excitation in films of varying sizes when the constant magnetic field changes from saturating to zero. The FMR has been investigated, specifically, for the earlier studied vortex distribution of magnetization in the normal state. It is shown that the transition of the main mode to the low-frequency region occurs when the intensity of the external magnetic field decreases. This technique can be used to analyze the dynamic properties of multiferroic heterostructures in the future.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"241 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140624410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical Properties of High Entropy Alloys Based on Rare Earth Elements with Yttrium and Scandium 基于稀土元素与钇和钪的高熵合金的机械特性

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23601919

I. S. Sipatov, O. A. Korolev, E. V. Ignatieva, L. A. Marshuk, B. R. Gelchinskiy, A. A. Rempel

Abstract

The paper reports the research outcomes on the structural and chemical composition of the equiatomic GdTbDyHoSc and GdTbDyHoY high-entropy alloys, which are potential materials for magnetic cold generators. The solidus and liquidus temperatures of the alloys were determined using differential scanning calorimetry. Based on these findings, an experimental mode of thermal cyclic treatment was selected. No signs of alloy destruction were observed after five test cycles for thermal resistance under exposure at a temperature of 1073 K (~0.6 of the melting point) for 15 minutes followed by quenching in room-temperature water. The applied heat treatment resulted in an increase in the hardness of alloys by 2–3 times and a decrease in wear resistance by 4–40 times depending on the alloy composition and the number of heat treatment cycles. Significant changes in the properties of alloys are associated with the formation of oxides, including REM₂О₃, not only on the surface but also within their volume, which is due to the high chemical activity of rare-earth metals. The data presented in this study will be beneficial in the development of thermal and thermomechanical treatment methods for studied alloys.

摘要本文报告了关于等原子 GdTbDyHoSc 和 GdTbDyHoY 高熵合金的结构和化学成分的研究成果，这些合金是磁性冷发生器的潜在材料。使用差示扫描量热法测定了合金的固态和液态温度。根据这些结果，选择了热循环处理的实验模式。在 1073 K 的温度（约为熔点的 0.6）下暴露 15 分钟，然后在室温水中淬火，经过五个耐热循环测试后，没有观察到合金破坏的迹象。根据合金成分和热处理循环次数的不同，热处理可使合金硬度提高 2-3 倍，耐磨性降低 4-40 倍。合金性能的显著变化与包括 REM2О3 在内的氧化物的形成有关，这些氧化物不仅存在于合金表面，也存在于合金内部，这是因为稀土金属具有很高的化学活性。本研究提供的数据将有助于为所研究的合金开发热处理和热机械处理方法。

{"title":"Mechanical Properties of High Entropy Alloys Based on Rare Earth Elements with Yttrium and Scandium","authors":"I. S. Sipatov, O. A. Korolev, E. V. Ignatieva, L. A. Marshuk, B. R. Gelchinskiy, A. A. Rempel","doi":"10.1134/s0031918x23601919","DOIUrl":"https://doi.org/10.1134/s0031918x23601919","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The paper reports the research outcomes on the structural and chemical composition of the equiatomic GdTbDyHoSc and GdTbDyHoY high-entropy alloys, which are potential materials for magnetic cold generators. The solidus and liquidus temperatures of the alloys were determined using differential scanning calorimetry. Based on these findings, an experimental mode of thermal cyclic treatment was selected. No signs of alloy destruction were observed after five test cycles for thermal resistance under exposure at a temperature of 1073 K (~0.6 of the melting point) for 15 minutes followed by quenching in room-temperature water. The applied heat treatment resulted in an increase in the hardness of alloys by 2–3 times and a decrease in wear resistance by 4–40 times depending on the alloy composition and the number of heat treatment cycles. Significant changes in the properties of alloys are associated with the formation of oxides, including REM2О3, not only on the surface but also within their volume, which is due to the high chemical activity of rare-earth metals. The data presented in this study will be beneficial in the development of thermal and thermomechanical treatment methods for studied alloys.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"267 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140033926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the Possibility of Formation of a Controlled Structure by Changing the Technological Parameters of the LPBF Process 通过改变 LPBF 工艺的技术参数来评估形成受控结构的可能性

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23602470

I. V. Shakirov, A. V. Olisov, P. A. Kuznetsov, A. S. Zhukov

Abstract

The possibility is studied for a controlled structure to be created by varying parameters of the laser powder bed fusion (LPBF) process when using austenitic stainless steels as an example. On the basis of the results of studying the structure of experimental samples, the influence of a combination of various technological parameters included in the scanning strategy when preparing a 3D-model for the LPBF process on the structure formation processes is demonstrated. The possibility of formation of fragments with different structures within a single part in the course of its manufacture by the LPBF method via changing the processing parameters included in the scanning strategy is shown. It is noted that the use of 3D-models, identical in shape but different in the strategy used for laser beam scanning straight in the laser melting process, leads to the formation of a sample with a profoundly different structure, since microstructure formation strongly depends on metal crystallization conditions directly linked with the scanning strategy.

摘要以奥氏体不锈钢为例，研究了通过改变激光粉末床熔化（LPBF）工艺的参数来创建受控结构的可能性。根据对实验样品结构的研究结果，证明了在为 LPBF 工艺准备三维模型时，扫描策略中包含的各种技术参数组合对结构形成过程的影响。通过改变扫描策略中的加工参数，可以在 LPBF 方法制造单个零件的过程中形成具有不同结构的碎片。值得注意的是，使用形状相同但在激光熔化过程中直接进行激光束扫描的策略不同的三维模型，会导致形成结构截然不同的样品，因为微观结构的形成在很大程度上取决于与扫描策略直接相关的金属结晶条件。

{"title":"Evaluation of the Possibility of Formation of a Controlled Structure by Changing the Technological Parameters of the LPBF Process","authors":"I. V. Shakirov, A. V. Olisov, P. A. Kuznetsov, A. S. Zhukov","doi":"10.1134/s0031918x23602470","DOIUrl":"https://doi.org/10.1134/s0031918x23602470","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The possibility is studied for a controlled structure to be created by varying parameters of the laser powder bed fusion (LPBF) process when using austenitic stainless steels as an example. On the basis of the results of studying the structure of experimental samples, the influence of a combination of various technological parameters included in the scanning strategy when preparing a 3D-model for the LPBF process on the structure formation processes is demonstrated. The possibility of formation of fragments with different structures within a single part in the course of its manufacture by the LPBF method via changing the processing parameters included in the scanning strategy is shown. It is noted that the use of 3D-models, identical in shape but different in the strategy used for laser beam scanning straight in the laser melting process, leads to the formation of a sample with a profoundly different structure, since microstructure formation strongly depends on metal crystallization conditions directly linked with the scanning strategy.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"18 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140034069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atomic Structure of Ti2NiCu Alloy after Severe Plastic Deformation by High Pressure Torsion and Heat Treatment 高压扭转和热处理产生严重塑性变形后 Ti2NiCu 合金的原子结构

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23602366

N. N. Kuranova, V. V. Makarov, V. G. Pushin

Abstract

The paper presents the results of a comparative analysis of the structure of Ti₂NiCu alloy subjected to severe plastic deformation by high pressure torsion and subsequent annealing. The structure of the alloy was studied using diffractometry, electron microscopy, X-ray and neutron techniques, as well as transmission electron microscopy. The analysis has revealed the formation of an amorphous-crystalline state within the alloy, with B2-lattice nanocrystallites present in the amorphous matrix. The analysis of diffuse maxima has indicated that the Ti₂NiCu alloy, after subjecting to high pressure torsions till five turns, possesses topological and compositional short-range order in the form of nanodomains with a superstructure arranged by B2 and L2₁ order.

摘要本文介绍了对通过高压扭转产生严重塑性变形并随后退火的 Ti2NiCu 合金的结构进行比较分析的结果。本文使用衍射仪、电子显微镜、X 射线和中子技术以及透射电子显微镜对合金结构进行了研究。分析表明，合金内部形成了非晶-晶体态，非晶基体中存在 B2 晶格的纳米晶体。对扩散最大值的分析表明，Ti2NiCu 合金在经受高压扭转至五圈后，具有拓扑和成分短程有序，其形式为纳米域，上层结构由 B2 和 L21 有序排列。

引用次数: 0

Dynamic Properties of Low-Alloyed Copper Alloys with Submicrocrystalline Structure Obtained by High Strain Rate Deformation 通过高应变率变形获得的亚微晶结构低合金铜合金的动态特性

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-03-04 DOI: 10.1134/s0031918x23602081

D. N. Abdullina, I. V. Khomskaya, S. V. Razorenov, E. V. Shorokhov

Abstract—

The mechanical properties of alloys Cu–0.03 wt % Zr and Cu–0.10 wt % Cr with a submicrocrystalline structure formed after dynamic channel angular pressing and subsequent annealing. The properties of the alloys were studied under conditions of shock compression with a pressure of 4.7–7.0 GPa and a deformation rate of (1.3–3.2) × 10⁵ s^–1. It is shown that grain size refinement from 200–400 to 0.3–1.0 μm increases the dynamic elastic limit and the dynamic yield strength of the Cu–0.03% Zr alloy by factors of 1.9 and 1.8, respectively. At the same time, the spall strength is reduced by a factor of 1.4. Subsequent annealing at 400 and 450°C can increase the characteristics of the elastic–plastic transition by factors of 3.0 and 3.7, respectively. This elevates the spall strength to the level of a large crystal analogue. It is determined that the process of dispersing the Cu–0.10% Cr alloy structure to 1.0–5.0 μm leads to an increase in the spall strength by a factor of 1.5 with respect to this value in the coarse grained state, while the dynamic elastic limit and the dynamic yield strength are increased by factors of 3.7 and 2.6, respectively.

摘要具有亚微晶结构的 Cu-0.03 wt % Zr 和 Cu-0.10 wt % Cr 合金的机械性能是在动态通道角压和随后的退火过程中形成的。在压力为 4.7-7.0 GPa、变形率为 (1.3-3.2) × 105 s-1 的冲击压缩条件下，对合金的性能进行了研究。结果表明，晶粒尺寸从 200-400 微米细化到 0.3-1.0 微米，Cu-0.03%Zr 合金的动态弹性极限和动态屈服强度分别提高了 1.9 和 1.8 倍。同时，剥落强度降低了 1.4 倍。随后在 400 和 450°C 下进行退火可将弹性-塑性转变的特性分别提高 3.0 和 3.7 倍。这就将剥落强度提高到了大晶体类似物的水平。据测定，将铜-0.10%铬合金结构分散到 1.0-5.0 μm 的过程可使剥落强度比粗晶状态下的该值提高 1.5 倍，而动态弹性极限和动态屈服强度则分别提高 3.7 倍和 2.6 倍。

{"title":"Dynamic Properties of Low-Alloyed Copper Alloys with Submicrocrystalline Structure Obtained by High Strain Rate Deformation","authors":"D. N. Abdullina, I. V. Khomskaya, S. V. Razorenov, E. V. Shorokhov","doi":"10.1134/s0031918x23602081","DOIUrl":"https://doi.org/10.1134/s0031918x23602081","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract—</h3>The mechanical properties of alloys Cu–0.03 wt % Zr and Cu–0.10 wt % Cr with a submicrocrystalline structure formed after dynamic channel angular pressing and subsequent annealing. The properties of the alloys were studied under conditions of shock compression with a pressure of 4.7–7.0 GPa and a deformation rate of (1.3–3.2) × 105 s–1. It is shown that grain size refinement from 200–400 to 0.3–1.0 μm increases the dynamic elastic limit and the dynamic yield strength of the Cu–0.03% Zr alloy by factors of 1.9 and 1.8, respectively. At the same time, the spall strength is reduced by a factor of 1.4. Subsequent annealing at 400 and 450°C can increase the characteristics of the elastic–plastic transition by factors of 3.0 and 3.7, respectively. This elevates the spall strength to the level of a large crystal analogue. It is determined that the process of dispersing the Cu–0.10% Cr alloy structure to 1.0–5.0 μm leads to an increase in the spall strength by a factor of 1.5 with respect to this value in the coarse grained state, while the dynamic elastic limit and the dynamic yield strength are increased by factors of 3.7 and 2.6, respectively.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"70 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140034216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Auger Electron Spectroscopy of Thin Cr2GeC Films Cr2GeC 薄膜的欧杰电子能谱学

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-02-05 DOI: 10.1134/s0031918x2360135x

T. A. Andryushchenko, S. A. Lyaschenko, S. N. Varnakov, A. V. Lukyanenko, I. V. Nemtsev, I. A. Yakovlev, D. V. Shevtsov, O. A. Maximova, S. G. Ovchinnikov

Abstract

Auger electron spectroscopy was used to determine the phase composition of Cr₂GeC MAX phase thin films. A distinctive feature of the formation of carbon-containing MAX phases is the shape of carbon Auger peaks, which is characteristic of metal carbides spectra. Features of the Auger spectra in the presence of secondary phases of chromium germanides are found. Their presence can manifest itself in an increase in the energy of the germanium peaks, which is caused by a chemical shift during the formation of the Cr–Ge bond. Moreover, we have detected the accumulation of electronic charge, which can be explained by the features of the surface morphology.

摘要利用欧杰电子能谱测定了 Cr2GeC MAX 相薄膜的相组成。含碳 MAX 相形成的一个显著特点是碳奥杰峰的形状，这是金属碳化物光谱的特征。我们还发现了铬锗化物次生相的奥杰光谱特征。它们的存在可表现为锗峰能量的增加，这是由形成铬-锗键时的化学位移引起的。此外，我们还检测到电子电荷的积累，这可以用表面形态的特征来解释。

引用次数: 0

A-Site Order-Disorder Evolution in Double Manganites RBaMn2O6 (R = Pr, Nd) 双锰矿 RBaMn2O6（R = Pr、Nd）中的 A 位有序-无序演化

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-02-05 DOI: 10.1134/s0031918x23602421

Abstract

Structural, magnetic and optical properties of double manganites PrBaMn₂O₆ and NdBaMn₂O₆ are studied depending on the degree of ordering in the A-position. It is shown that, annealing induced disordering goes in an initial stage throw formation of a two-phase state: a phase with a high A-site ordering with T_C ∼ 280–300 K and a phase with a low ordering of ~30% with significantly lower T_C coexist. In partially ordered PrBaMn₂O₆ samples there are metal-insulator transitions near T_C of the each coexisting phases. In partially ordered NdBaMn₂O₆ in a highly A-site ordered high-temperature phase, there is no metal-insulator transition due to the destruction of the channels for metallic conductivity formed by the ordering of the x²‒y² orbitals. If a metal-insulator transition takes place, the application of a magnetic field leads to the effect of magnetotransmission near T_C, which is associated with a change in the concentration of delocalized charge carriers.

摘要根据 A 位有序程度，研究了双锰矿 PrBaMn2O6 和 NdBaMn2O6 的结构、磁性和光学特性。研究表明，退火诱导的无序化在初始阶段会形成两相状态：TC ∼ 280-300 K 的高 A 位有序相和 TC 明显降低的约 30% 的低有序相共存。在部分有序的 PrBaMn2O6 样品中，每种共存相的 TC 附近都存在金属-绝缘体转变。在部分有序的 NdBaMn2O6 高温相中，由于 x2-y2 轨道有序化所形成的金属导电通道被破坏，因此不存在金属-绝缘体转变。如果发生了金属-绝缘体转变，则磁场的应用会导致 TC 附近的磁传递效应，这与脱局域电荷载流子浓度的变化有关。

{"title":"A-Site Order-Disorder Evolution in Double Manganites RBaMn2O6 (R = Pr, Nd)","authors":"","doi":"10.1134/s0031918x23602421","DOIUrl":"https://doi.org/10.1134/s0031918x23602421","url":null,"abstract":" <h3>Abstract</h3> Structural, magnetic and optical properties of double manganites PrBaMn2O6 and NdBaMn2O6 are studied depending on the degree of ordering in the A-position. It is shown that, annealing induced disordering goes in an initial stage throw formation of a two-phase state: a phase with a high A-site ordering with TC ∼ 280–300 K and a phase with a low ordering of ~30% with significantly lower TC coexist. In partially ordered PrBaMn2O6 samples there are metal-insulator transitions near TC of the each coexisting phases. In partially ordered NdBaMn2O6 in a highly A-site ordered high-temperature phase, there is no metal-insulator transition due to the destruction of the channels for metallic conductivity formed by the ordering of the x2‒y2 orbitals. If a metal-insulator transition takes place, the application of a magnetic field leads to the effect of magnetotransmission near TC, which is associated with a change in the concentration of delocalized charge carriers. ","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"11 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139688608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Permalloy-Based 2D-Magnetoplasmonic Crystals: Synthesis and Magneto-Optical Properties 基于坡莫合金的二维磁光晶体：合成与磁光特性

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-02-05 DOI: 10.1134/s0031918x2360197x

Z. A. Grigoreva, D. V. Murzin, Ch. A. Gritsenko, A. G. Kozlov, A. V. Ognev, V. V. Rodionova, V. K. Belyaev

Abstract

In this work we demonstrate the fabrication protocol of 2D-magnetoplasmonic crystals consisting of permalloy column arrays. Dependences of morphological, magnetic, optical, and magneto-optical properties of 2D-magnetoplasmonic crystals on the e-beam exposition dose are studied. Proposed protocol is suitable for the fabrication of 2D-structures with controllable dimensions and morphology of individual columns having substantial potential for applications as sensitive magnetic field probes.

摘要在这项工作中，我们展示了由 permalloy 柱阵列组成的二维磁性晶体的制造规程。研究了二维磁致共振晶体的形态、磁性、光学和磁光特性与电子束照射剂量的关系。所提出的方案适用于制造尺寸和形态可控的二维结构，单个柱阵列具有作为敏感磁场探针应用的巨大潜力。

引用次数: 0

FeZrN Films with Nanocomposite Structure for Soft Magnetic Applications 用于软磁应用的具有纳米复合结构的 FeZrN 薄膜

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-02-05 DOI: 10.1134/s0031918x23601336

E. N. Sheftel, E. V. Harin, V. A. Tedzhetov, G. Sh. Usmanova

Abstract

The Fe_56.8–72.5Zr_5.9–11.6N_13.8–31.6O_1.2–3.4 films were prepared by magnetron deposition. The metastable structural and phase state, which was formed upon deposition, is represented by either mixed (nanocrystalline αFe(Zr,N) + amorphous) or amorphous structure. During subsequent annealing (300–600°C), it slightly shifts toward the stable state due to partial crystallization of the amorphous phase and precipitation of the secondary phases (Fe₄N, Fe₃N, and ZrO₂). The grain structure of the films (grains 3–12 nm in size) is characterized by thermal stability. The relatively low saturation magnetization M_s (870–1400 G) of the films is explained by the presence of the amorphous phase and αFe(Zr,N) solid solution, which remain in the film structure after annealing at all temperatures. The stochastic domain structure is formed in all films under study due to exchange interaction between grains and clusters in the amorphous structure. The strong dependence of the magnetic structure on the phase state and grain structure of the films is demonstrated. The combination of low local magnetic anisotropy and the highest stochastic domain size predetermines the lowest coercive field of the films, which varies in a range of 1 to 50 Oe.

摘要采用磁控沉积法制备了 Fe56.8-72.5Zr5.9-11.6N13.8-31.6O1.2-3.4 薄膜。沉积后形成的蜕变结构和相态表现为混合结构（纳米晶αFe(Zr,N) + 非晶）或非晶结构。在随后的退火（300-600°C）过程中，由于非晶相的部分结晶和次生相（Fe4N、Fe3N 和 ZrO2）的析出，非晶相略微向稳定状态转变。薄膜的晶粒结构（晶粒大小为 3-12 nm）具有热稳定性的特点。薄膜的饱和磁化率 Ms（870-1400 G）相对较低，这是因为薄膜结构中存在非晶相和αFe(Zr,N) 固溶体，它们在所有温度下退火后仍然存在。由于非晶结构中晶粒和晶簇之间的交换相互作用，所有研究薄膜中都形成了随机畴结构。磁性结构与薄膜的相态和晶粒结构密切相关。低局部磁各向异性和最高随机畴尺寸的组合预先决定了薄膜的最低矫顽力场，其变化范围在 1 到 50 Oe 之间。

{"title":"FeZrN Films with Nanocomposite Structure for Soft Magnetic Applications","authors":"E. N. Sheftel, E. V. Harin, V. A. Tedzhetov, G. Sh. Usmanova","doi":"10.1134/s0031918x23601336","DOIUrl":"https://doi.org/10.1134/s0031918x23601336","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The Fe56.8–72.5Zr5.9–11.6N13.8–31.6O1.2–3.4 films were prepared by magnetron deposition. The metastable structural and phase state, which was formed upon deposition, is represented by either mixed (nanocrystalline αFe(Zr,N) + amorphous) or amorphous structure. During subsequent annealing (300–600°C), it slightly shifts toward the stable state due to partial crystallization of the amorphous phase and precipitation of the secondary phases (Fe4N, Fe3N, and ZrO2). The grain structure of the films (grains 3–12 nm in size) is characterized by thermal stability. The relatively low saturation magnetization Ms (870–1400 G) of the films is explained by the presence of the amorphous phase and αFe(Zr,N) solid solution, which remain in the film structure after annealing at all temperatures. The stochastic domain structure is formed in all films under study due to exchange interaction between grains and clusters in the amorphous structure. The strong dependence of the magnetic structure on the phase state and grain structure of the films is demonstrated. The combination of low local magnetic anisotropy and the highest stochastic domain size predetermines the lowest coercive field of the films, which varies in a range of 1 to 50 Oe.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"11 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139688610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Playing Pure Spin Current in Helimagnets: Toward Chiral Spin-Orbitronics 玩转螺旋磁体中的纯自旋电流：迈向手性自旋轨道学

IF 1.2 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography

Pub Date : 2024-02-05 DOI: 10.1134/s0031918x23601968

V. V. Ustinov, I. A. Yasyulevich, N. G. Bebenin

Abstract

A quantum theory of electron spin transport in conductive magnets is developed. The theory describes a large number of effects that arise due to spin-orbit scattering of conduction electrons on crystal lattice defects, such as the spin Hall effect, the inverse spin Hall effect, and the anomalous Hall effect. The transport through the contact of two different conductive magnetics is also considered; the phenomenological boundary conditions for the charge and spin flows are formulated, which make it possible to take into account the spin flip at the interface. The developed electron spin transport theory is used to describe the spin-orbitronics of the “helimagnet metal/non-magnetic metal” heterojunction. The spatial distribution of the polarization of the spin current injected into the helimagnet is found, and the characteristic decay lengths of different components of the polarization vector of the spin current are determined.

摘要提出了导电磁体中电子自旋传输的量子理论。该理论描述了传导电子在晶格缺陷上的自旋轨道散射所产生的大量效应，如自旋霍尔效应、逆自旋霍尔效应和反常霍尔效应。此外，还考虑了通过两种不同导电磁性材料接触的传输；制定了电荷流和自旋流的现象学边界条件，从而有可能考虑到界面上的自旋翻转。所建立的电子自旋传输理论被用来描述 "自旋磁性金属/非磁性金属 "异质结的自旋轨道电子学。研究发现了注入自旋磁体的自旋电流极化的空间分布，并确定了自旋电流极化矢量不同分量的特征衰减长度。

引用次数: 0

首页上一页

下一页尾页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Physics of Metals and Metallography

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

﹀