YbCu5-xSnx中Yb离子基态的演化

IF 3 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Magnetism and Magnetic Materials Pub Date : 2025-03-01 Epub Date: 2025-01-18 DOI:10.1016/j.jmmm.2025.172804

F. Akbar , I. Čurlík , J. Kúdelčík , M. Reiffers , M. Giovannini

{"title":"YbCu5-xSnx中Yb离子基态的演化","authors":"F. Akbar , I. Čurlík , J. Kúdelčík , M. Reiffers , M. Giovannini","doi":"10.1016/j.jmmm.2025.172804","DOIUrl":null,"url":null,"abstract":"<div><div>Structural and magnetic studies have been carried out for the cubic YbCu5-xSnx system of the MgCu4Sn-type, which exists in the solubility range 0.2 ≤ x ≤ 0.7. The magnetic properties of this system were compared with those of the analogous system YbCu5-xInx (0.1 ≤ x ≤ 1.0). These two systems appear to share the same scenario of evolution from a localized trivalent state of the Yb atom for low values of x(x = 0.2) to valence transition state in a wide temperature range (T ∼ 40–80 K) for intermediate values of x(x = 0.6, 0.7). Specific heat measurements performed for one of these compositions, YbCu4.4Sn0.6, show an increase at low temperatures T < 7 K most probably due to the presence of a high density of magnetic excitations.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"615 ","pages":"Article 172804"},"PeriodicalIF":3.0000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evolution of the ground state of Yb ion in YbCu5-xSnx\",\"authors\":\"F. Akbar , I. Čurlík , J. Kúdelčík , M. Reiffers , M. Giovannini\",\"doi\":\"10.1016/j.jmmm.2025.172804\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Structural and magnetic studies have been carried out for the cubic YbCu5-xSnx system of the MgCu4Sn-type, which exists in the solubility range 0.2 ≤ x ≤ 0.7. The magnetic properties of this system were compared with those of the analogous system YbCu5-xInx (0.1 ≤ x ≤ 1.0). These two systems appear to share the same scenario of evolution from a localized trivalent state of the Yb atom for low values of x(x = 0.2) to valence transition state in a wide temperature range (T ∼ 40–80 K) for intermediate values of x(x = 0.6, 0.7). Specific heat measurements performed for one of these compositions, YbCu4.4Sn0.6, show an increase at low temperatures T < 7 K most probably due to the presence of a high density of magnetic excitations.</div></div>\",\"PeriodicalId\":366,\"journal\":{\"name\":\"Journal of Magnetism and Magnetic Materials\",\"volume\":\"615 \",\"pages\":\"Article 172804\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Magnetism and Magnetic Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0304885325000356\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/1/18 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnetism and Magnetic Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304885325000356","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/18 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

对溶解度为0.2≤x≤0.7的mgcu4sn型立方YbCu5-xSnx体系进行了结构和磁性研究。将该体系的磁性能与YbCu5-xInx（0.1≤x≤1.0）进行了比较。这两种体系似乎具有相同的演化过程，从低x值（x = 0.2）时的局域三价态到中间x值（x = 0.6, 0.7）时宽温度范围（T ~ 40-80 K）内的价态过渡态。对其中一种成分YbCu4.4Sn0.6进行的比热测量显示，在低温T <下比热增加；7k很可能是由于存在高密度的磁激励。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

Evolution of the ground state of Yb ion in YbCu5-xSnx

Structural and magnetic studies have been carried out for the cubic YbCu_5-xSn_x system of the MgCu₄Sn-type, which exists in the solubility range 0.2 ≤ x ≤ 0.7. The magnetic properties of this system were compared with those of the analogous system YbCu_5-xIn_x (0.1 ≤ x ≤ 1.0). These two systems appear to share the same scenario of evolution from a localized trivalent state of the Yb atom for low values of x(x = 0.2) to valence transition state in a wide temperature range (T ∼ 40–80 K) for intermediate values of x(x = 0.6, 0.7). Specific heat measurements performed for one of these compositions, YbCu_4.4Sn_0.6, show an increase at low temperatures T < 7 K most probably due to the presence of a high density of magnetic excitations.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.