期刊
JOURNAL OF APPLIED PHYSICS
卷 117, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4907933
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资金
- FPLO
- NAST (Nepal)
- INSA (India) under the NAST-INSA bilateral exchange program
- WPI Initiative on Materials Nanoarchitectonics, MEXT, Japan
First-principles density functional theory (DFT) is used to investigate the electronic and magnetic properties of Sr4Rh3O10, a member of the Ruddlesden-Popper series. Based on the DFT calculations taking into account the co-operative effect of Coulomb interaction (U) and spin-orbit couplings (SOC), Sr4Rh3O10 is found to be a half metallic ferromagnet (HMF) with total magnetic moment mu(tot) = 12 mu(B) per unit cell. The material has almost 100% spin-polarization at the Fermi level despite of sizable SOC. Replacement of Rh atom by the isovalent Co atom is considered. Upon full-replacement of Co, a low-spin to intermediate spin transition happens resulting in a HMF state with the total magnetic moment three-time larger (i.e., mu(to)t = 36 mu(B) per unit cell), compared to Sr4Rh3O10. We propose Sr4Rh3O10 and Sr4Co3O10 as candidates of half metals. (C) 2015 AIP Publishing LLC.
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