alpha-K2AgF4: Ferromagnetism induced by the weak superexchange of different e(g) orbitals from the nearest neighbor Ag ions
文献类型：期刊论文
| 作者 | Zhang, Xiaoli1 ; Zhang, Guoren1; Jia, Ting1; Zeng, Zhi1,2; Lin, H. Q.3
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| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 6期号:5页码:1-6 |
| DOI | 10.1063/1.4942793 |
| 文献子类 | Article |
| 英文摘要 | We study the abnormal ferromagnetism in alpha-K2AgF4, which is very similar to high-T-C parent material La2CuO4 in structure. We find out that the electron correlation is very important in determining the insulating property of alpha-K2AgF4. The Ag(II) 4d(9) in the octahedron crystal field has the t(2g)(6)e(g)(3) electron occupation with e(g) x(2)-y(2) orbital fully occupied and 3z(2)-r(2) orbital partially occupied. The two e(g) orbitals are very extended indicating both of them are active in superexchange. Using the Hubbard model combined with Nth-order muffin-tin orbital (NMTO) downfolding technique, it is concluded that the exchange interaction between e(g) 3z(2)-r(2) and x(2)-y(2) from the first nearest neighbor Ag ions leads to the anomalous ferromagnetism in alpha-K2AgF4. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000377962500104 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/22445]  |
| 专题 | 合肥物质科学研究院_中科院固体物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaoli,Zhang, Guoren,Jia, Ting,et al. alpha-K2AgF4: Ferromagnetism induced by the weak superexchange of different e(g) orbitals from the nearest neighbor Ag ions[J]. AIP ADVANCES,2016,6(5):1-6. |
| APA | Zhang, Xiaoli,Zhang, Guoren,Jia, Ting,Zeng, Zhi,&Lin, H. Q..(2016).alpha-K2AgF4: Ferromagnetism induced by the weak superexchange of different e(g) orbitals from the nearest neighbor Ag ions.AIP ADVANCES,6(5),1-6. |
| MLA | Zhang, Xiaoli,et al."alpha-K2AgF4: Ferromagnetism induced by the weak superexchange of different e(g) orbitals from the nearest neighbor Ag ions".AIP ADVANCES 6.5(2016):1-6. |
入库方式： OAI收割
来源：合肥物质科学研究院
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