|
JAIST Repository >
Research Center for Simulation Science 2012-2016 >
Articles >
Journal Articles >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10119/10844
|
| Title: | Anisotropic exchange interactions of spin-orbit-integrated states in Sr_2IrO_4 |
| Authors: | Jin, Hosub
Jeong, Hogyun
Ozaki, Taisuke
Yu, Jaejun |
| Issue Date: | 2009-08-13 |
| Publisher: | American Physical Society |
| Magazine name: | Physical Review B |
| Volume: | 80 |
| Number: | 7 |
| Start page: | 075112-1 |
| End page: | 075112-5 |
| DOI: | 10.1103/PhysRevB.80.075112 |
| Abstract: | We present a microscopic model for the anisotropic exchange interactions in Sr_2IrO_4. A direct construction of Wannier functions from first-principles calculations proves the j_<eff>=1/2 character of the spin-orbit integrated states at the Fermi level. An effective j_<eff>-spin Hamiltonian explains the observed weak ferromagnetism and anisotropy of antiferromagnetically ordered magnetic state, which arise naturally from the j_<eff>=1/2 state with a rotation of IrO_6 octahedra. It is suggested that Sr_2IrO_4 is a unique class of materials with effective exchange interactions in the spin-orbital Hilbert space. |
| Rights: | Hosub Jin, Hogyun Jeong, Taisuke Ozaki, and Jaejun Yu, Physical Review B, 80(7), 2009, 075112-1-075112-5. Copyright 2009 by the American Physical Society. http://dx.doi.org/10.1103/PhysRevB.80.075112 |
| URI: | http://hdl.handle.net/10119/10844 |
| Material Type: | publisher |
| Appears in Collections: | z10-10-1. 雑誌掲載論文 (Journal Articles)
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| 30.pdf | | 224Kb | Adobe PDF | View/Open |
|
All items in DSpace are protected by copyright, with all rights reserved.
|
