Critical behavior of the van der Waals ferromagnet Fe4.8GeTe2
文献类型：期刊论文
| 作者 | Zhang, Ying2,3; Liu, Yonglai3; He, Miao3; Zhang, Ke2; Liu, Ping1 |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 603 |
| 关键词 | Ferromagnetic exchange mechanism Magnetization Critical exponent Fe4.8GeTe2 |
| ISSN号 | 0304-8853 |
| DOI | 10.1016/j.jmmm.2024.172271 |
| 通讯作者 | Zhang, Ke(zk626217@163.com) ; Liu, Ping(liuping@njupt.edu.cn) |
| 英文摘要 | The van der Waals ferromagnet Fe5-xGeTe2 has drawn significant interest due to its approximately room-temperature Curie temperature (T-C) of 270 to 310 K, which can be regulated through iron deficiency. To comprehend the tunable T-C associated with the ferromagnetic exchange mechanism, we systematically investigate the critical phenomenon of Fe5-xGeTe2 (Fe4.8GeTe2) crystals around T-C. Employing diverse analytical methods for magnetization study, we derived reliable critical exponent values: T-C = 285 K, beta = 0.364(2), gamma = 1.293(1), and delta = 4.62(1). Through a comparative analysis of these critical exponents, the magnetic behavior of Fe4.8GeTe2 is expounded as a three-dimensional (3D) magnetic exchange mechanism, with exchange distance decay modeled as J(r) approximate to r(-4.85), closely resembling long-range magnetic coupling in the 3D Heisenberg mode. |
| WOS关键词 | EQUATION-OF-STATE ; CRITICAL EXPONENTS ; MAGNETISM ; CRYSTAL ; NICKEL |
| 资助项目 | National Natural Science Foundation of China[12104235] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001325777500001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135752]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Ke; Liu, Ping |
| 作者单位 | 1.Nanjing Univ Posts & Telecommun, Sch Sci, Nanjing 210023, Peoples R China 2.Huainan Normal Univ, Sch Elect Engn, Huainan 232038, Peoples R China 3.Chinese Acad Sci, Anhui Key Lab Low Energy Quantum Mat & Devices, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ying,Liu, Yonglai,He, Miao,et al. Critical behavior of the van der Waals ferromagnet Fe4.8GeTe2[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2024,603. |
| APA | Zhang, Ying,Liu, Yonglai,He, Miao,Zhang, Ke,&Liu, Ping.(2024).Critical behavior of the van der Waals ferromagnet Fe4.8GeTe2.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,603. |
| MLA | Zhang, Ying,et al."Critical behavior of the van der Waals ferromagnet Fe4.8GeTe2".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 603(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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