dorsal/arxiv
View SchemaWeakly spin-dependent band structures of antiferromagnetic perovskite LaMO$_3$ (M = Cr, Mn, Fe)
| Authors | Takuya Okugawa, Kaoru Ohno, Yusuke Noda, Shinichiro Nakamura |
|---|---|
| Categories | |
| ArXiv ID | 2601.06422vv1 |
| URL | https://arxiv.org/abs/2601.06422 |
| DOI | 10.1088/1361-648X/aa9e70 |
| Journal | Journal of Physics: Condensed Matter 30, 075502 (2018) |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
We investigate spin-dependent electronic states of antiferromagnetic (AFM) lanthanum chromite (LaCrO$_3$), lanthanum manganite (LaMnO$_3$), and lanthanum ferrite (LaFeO$_3$) using spin-polarized first-principles density functional theory (DFT) with Hubbard U correction. The band structures are calculated for 15 types of their different AFM structures. It is verified for these structures that there is a very simple rule to identify which wave number k exhibits spin splitting or degeneracy in the band structure. This rule uses the symmetry operations that map the up-spin atoms onto the down-spin atoms. The resulting spin splitting is very small for the most stable spin configuration of the most stable experimental structure. We discuss a plausible benefit of this characteristic, i.e., the direction-independence of the spin current, in electrode applications.
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"abstract": "We investigate spin-dependent electronic states of antiferromagnetic (AFM) lanthanum chromite (LaCrO$_3$), lanthanum manganite (LaMnO$_3$), and lanthanum ferrite (LaFeO$_3$) using spin-polarized first-principles density functional theory (DFT) with Hubbard U correction. The band structures are calculated for 15 types of their different AFM structures. It is verified for these structures that there is a very simple rule to identify which wave number k exhibits spin splitting or degeneracy in the band structure. This rule uses the symmetry operations that map the up-spin atoms onto the down-spin atoms. The resulting spin splitting is very small for the most stable spin configuration of the most stable experimental structure. We discuss a plausible benefit of this characteristic, i.e., the direction-independence of the spin current, in electrode applications.",
"arxiv_id": "2601.06422",
"authors": [
"Takuya Okugawa",
"Kaoru Ohno",
"Yusuke Noda",
"Shinichiro Nakamura"
],
"categories": [
"cond-mat.mtrl-sci"
],
"doi": "10.1088/1361-648X/aa9e70",
"journal_ref": "Journal of Physics: Condensed Matter 30, 075502 (2018)",
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Weakly spin-dependent band structures of antiferromagnetic perovskite LaMO$_3$ (M = Cr, Mn, Fe)",
"url": "https://arxiv.org/abs/2601.06422",
"version": "v1"
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