{"title":"LaCr1-xGaxO3 (x = 0、0.25、0.5)中的磁熵变化研究","authors":"Rajalekshmi TR, MS Ramachandra Rao, K. Sethupathi","doi":"10.1007/s10948-024-06799-2","DOIUrl":null,"url":null,"abstract":"<div><p>This study analyzes the variations within LaCrO<sub>3</sub> induced by diamagnetic gallium (Ga) substitution at the chromium (Cr) sites, exploring the consequential changes in both structural configuration and magnetic attributes. Through structural characterization employing X-ray diffraction (XRD) and scanning electron microscopy (SEM), the modified lattice parameters and crystalline structure resulting from Ga incorporation are revealed, shedding light on the structural and phase modifications within the material. The magnetic property investigations unveil the impact on the weak ferromagnetism intrinsic to LaCrO<sub>3</sub> and in Ga substituted samples. Additionally, this research scrutinizes the consequential shifts in entropy resulting from Ga substitution, offering insights into the material’s thermodynamic properties. The findings elucidate the intricate relationship between structural modifications and magnetic properties within perovskite oxides, providing valuable insights into the multifunctional effects of Ga substitution on LaCrO<sub>3</sub>.</p></div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"37 8-10","pages":"1647 - 1650"},"PeriodicalIF":1.6000,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Magnetic Entropy Change Studies in LaCr1−xGaxO3 (x = 0, 0.25, 0.5)\",\"authors\":\"Rajalekshmi TR, MS Ramachandra Rao, K. Sethupathi\",\"doi\":\"10.1007/s10948-024-06799-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study analyzes the variations within LaCrO<sub>3</sub> induced by diamagnetic gallium (Ga) substitution at the chromium (Cr) sites, exploring the consequential changes in both structural configuration and magnetic attributes. Through structural characterization employing X-ray diffraction (XRD) and scanning electron microscopy (SEM), the modified lattice parameters and crystalline structure resulting from Ga incorporation are revealed, shedding light on the structural and phase modifications within the material. The magnetic property investigations unveil the impact on the weak ferromagnetism intrinsic to LaCrO<sub>3</sub> and in Ga substituted samples. Additionally, this research scrutinizes the consequential shifts in entropy resulting from Ga substitution, offering insights into the material’s thermodynamic properties. The findings elucidate the intricate relationship between structural modifications and magnetic properties within perovskite oxides, providing valuable insights into the multifunctional effects of Ga substitution on LaCrO<sub>3</sub>.</p></div>\",\"PeriodicalId\":669,\"journal\":{\"name\":\"Journal of Superconductivity and Novel Magnetism\",\"volume\":\"37 8-10\",\"pages\":\"1647 - 1650\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-07-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Superconductivity and Novel Magnetism\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10948-024-06799-2\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superconductivity and Novel Magnetism","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10948-024-06799-2","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
摘要
本研究分析了铬(Cr)位上的二磁性镓(Ga)取代引起的 LaCrO3 内部的变化,探讨了结构构型和磁性属性的相应变化。通过使用 X 射线衍射(XRD)和扫描电子显微镜(SEM)进行结构表征,揭示了镓的加入所导致的晶格参数和晶体结构的改变,从而揭示了材料内部的结构和相变。磁性能研究揭示了对 LaCrO3 固有的弱铁磁性和镓替代样品的影响。此外,这项研究还仔细观察了镓置换导致的熵的相应变化,从而深入了解了材料的热力学性质。研究结果阐明了包晶氧化物中结构修饰与磁性能之间错综复杂的关系,为了解 Ga 取代对 LaCrO3 的多功能影响提供了宝贵的见解。
Magnetic Entropy Change Studies in LaCr1−xGaxO3 (x = 0, 0.25, 0.5)
This study analyzes the variations within LaCrO3 induced by diamagnetic gallium (Ga) substitution at the chromium (Cr) sites, exploring the consequential changes in both structural configuration and magnetic attributes. Through structural characterization employing X-ray diffraction (XRD) and scanning electron microscopy (SEM), the modified lattice parameters and crystalline structure resulting from Ga incorporation are revealed, shedding light on the structural and phase modifications within the material. The magnetic property investigations unveil the impact on the weak ferromagnetism intrinsic to LaCrO3 and in Ga substituted samples. Additionally, this research scrutinizes the consequential shifts in entropy resulting from Ga substitution, offering insights into the material’s thermodynamic properties. The findings elucidate the intricate relationship between structural modifications and magnetic properties within perovskite oxides, providing valuable insights into the multifunctional effects of Ga substitution on LaCrO3.
期刊介绍:
The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.