Spontaneous formation of altermagnetism from orbital ordering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00586955" target="_blank" >RIV/68378271:_____/24:00586955 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.132.236701" target="_blank" >https://doi.org/10.1103/PhysRevLett.132.236701</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.132.236701" target="_blank" >10.1103/PhysRevLett.132.236701</a>
Alternative languages
Result language
angličtina
Original language name
Spontaneous formation of altermagnetism from orbital ordering
Original language description
Altermagnetism has emerged as a third type of collinear magnetism. In contrast to standard ferromagnets and antiferromagnets, altermagnets exhibit extra even-parity wave spin order parameters resulting in a spin splitting of electronic bands in momentum space. In real space, sublattices of opposite spin polarization are anisotropic and related by rotational symmetry. In the hitherto identified altermagnetic candidate materials, the anisotropies arise from the local crystallographic symmetry. Here, we show that altermagnetism can also form as an interaction-induced electronic instability in a lattice without the crystallographic sublattice anisotropy. We provide a microscopic example of a two-orbital model showing that the coexistence of staggered antiferromagnetic and orbital order can realize robust altermagnetism. We quantify the spinsplitter conductivity as a key experimental observable and discuss material candidates for the interactioninduced realization of altermagnetism.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Letters
ISSN
0031-9007
e-ISSN
1079-7114
Volume of the periodical
132
Issue of the periodical within the volume
23
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
236701
UT code for WoS article
001241470700001
EID of the result in the Scopus database
2-s2.0-85195275221