M?ssbauer spectroscopy study of magnetostructural and spin-state transitions in the breathing pyrochlore LiFeCr4O8
文献类型：期刊论文
| 作者 | Zhang, Bo1; Ren, Wei1; Yang, Shengyu1; Kuang, Qifeng2,3; Li, Da2,3; Liu, Xin4,5; Zhang, Anmin1; Pang, Hua1; Tang, Liyun1; Qiao, Liang1 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 108期号:21页码:9 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.108.214401 |
| 通讯作者 | Li, Zhiwei(zweili@lzu.edu.cn) |
| 英文摘要 | We report on investigations of the complex magnetostructural and spin-state transitions in the breathing pyrochlore LiFeCr4O8 by means of magnetization, Mossbauer spectroscopy, and density functional theory (DFT) calculations. Three transitions corresponding to the ferrimagnetic transition at TN similar to 94 K, the spin-gap transition at TSG similar to 50 K, and the magnetostructural transition at TMS similar to 19 K were observed from the chi(T) curve, whereas only TN and TMS were evidenced for the Fe site from our Mossbauer measurements, suggesting that the spin-gap transition is absent at the Fe site. This indicates that the spin-gap transition is an effect of the breathing Cr4 lattice, in agreement with our DFT calculations from which we see nearly decoupled electronic states for the FeO4 and CrO6 units. From the temperature dependence of the hyperfine magnetic field, we also observed a spin-state transition for the Fe spins at TMS consistent with earlier neutron diffraction measurements. These local characteristics are believed to be important for a complete understanding of the complex magnetostructural coupling effects observed in similar systems. |
| 资助项目 | National Natural Science Foundation of China[11704167] ; National Natural Science Foundation of China[51971221] ; National Key Research and Development Program of China[2022YFB4101401] ; National Key Research and Development Program of China[2022YFA1402704] ; Supercomputing Center of Lanzhou University |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001141721600001 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Supercomputing Center of Lanzhou University |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Zhiwei |
| 作者单位 | 1.Lanzhou Univ, Minist Educ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Northeastern Univ Qinhuangdao, Sch Resources & Mat, Qinhuangdao 066004, Peoples R China 5.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Bo,Ren, Wei,Yang, Shengyu,et al. M?ssbauer spectroscopy study of magnetostructural and spin-state transitions in the breathing pyrochlore LiFeCr4O8[J]. PHYSICAL REVIEW B,2023,108(21):9. |
| APA | Zhang, Bo.,Ren, Wei.,Yang, Shengyu.,Kuang, Qifeng.,Li, Da.,...&Li, Zhiwei.(2023).M?ssbauer spectroscopy study of magnetostructural and spin-state transitions in the breathing pyrochlore LiFeCr4O8.PHYSICAL REVIEW B,108(21),9. |
| MLA | Zhang, Bo,et al."M?ssbauer spectroscopy study of magnetostructural and spin-state transitions in the breathing pyrochlore LiFeCr4O8".PHYSICAL REVIEW B 108.21(2023):9. |
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来源：金属研究所
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