Noncollinear commensurate antiferromagnetic structure in metallic Pr2PdAl7Ge4
文献类型：期刊论文
| 作者 | Gao, Fei5,6; Wang, Hong-Liang1; Cui, Meiyan7; Ren, Weijun5,6; Wang, Chin-Wei4; Yano, S.; Liu, Xinzhi2,3; He, Zhangzhen7; Li, Bing5,6; Zhang, Zhidong5,6 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2023-06-23 |
| 卷号 | 107期号:21页码:9 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.107.214435 |
| 通讯作者 | Ren, Weijun(wjren@imr.ac.cn) |
| 英文摘要 | We report the crystal structure, magnetic structure, magnetic properties, electrical- and magnetotransport properties, and heat capacity of the rare-earth transition-metal compound Pr2PdAl7Ge4. Pr2PdAl7Ge4 crystallizes in the noncentrosymmetric tetragonal structure P (4) over bar2(1)m (No. 113) with unit cell parameters a = 6.0059(3) angstrom and c = 15.2278(13) angstrom. The Neel temperature T-N of Pr2PdAl7Ge4 was determined to be 6 K by the temperature dependences of magnetization, heat capacity, and electrical resistivity. The magnetic-field-induced antiferromagnetic to ferromagnetic transition occurs for magnetic fields H along both the ab plane and the c axis. The electrical resistivity shows a metallic behavior with an upturn at the ordering temperature due to a superzone gap. Negative linear magnetoresistance is observed since the magnetic field increases the order degree of the antiferromagnetic state, reducing the magnetic correlation scattering. Neutron powder diffraction experiments reveal that metallic Pr2PdAl7Ge4 has an unusual noncollinear commensurate antiferromagnetic structure with the propagation vector k = (0, 0, 0.5). Magnetic Pr atom layers stack with the ABBA sequence along the c axis. Within the layers, the Pr moments lie in the ab plane, and the angle between the nearest-neighbor spins is 67.1 degrees. This magnetic structure can well explain the magnetic properties of Pr2PdAl7Ge4. |
| 资助项目 | Ministry of Science and Technology of China[2021YFB3501201] ; Ministry of Science and Technology of China[2020YFA0406002] ; National Natural Science Foundation of China[52071323] ; National Natural Science Foundation of China[22205234] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001089434600003 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | Ministry of Science and Technology of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177569]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, Weijun |
| 作者单位 | 1.China Inst Atom Energy, Dept Nucl Phys, Neutron Scattering Lab, Beijing 102413, Peoples R China 2.Sun Yat Sen Univ, Sch Phys, Ctr Neutron Sci & Technol, Guangzhou 510275, Peoples R China 3.Sun Yat Sen Univ, Sch Phys, Guangdong Prov Key Lab Magnetoelect Phys & Device, Guangzhou 510275, Peoples R China 4.Natl Synchrotron Radiat Res Ctr, Hsinchu 30077, Taiwan 5.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 6.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 7.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Fei,Wang, Hong-Liang,Cui, Meiyan,et al. Noncollinear commensurate antiferromagnetic structure in metallic Pr2PdAl7Ge4[J]. PHYSICAL REVIEW B,2023,107(21):9. |
| APA | Gao, Fei.,Wang, Hong-Liang.,Cui, Meiyan.,Ren, Weijun.,Wang, Chin-Wei.,...&Zhang, Zhidong.(2023).Noncollinear commensurate antiferromagnetic structure in metallic Pr2PdAl7Ge4.PHYSICAL REVIEW B,107(21),9. |
| MLA | Gao, Fei,et al."Noncollinear commensurate antiferromagnetic structure in metallic Pr2PdAl7Ge4".PHYSICAL REVIEW B 107.21(2023):9. |
入库方式： OAI收割
来源：金属研究所
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