Relativistic Néel-Order Fields Induced by Electrical Current in Antiferromagnets
Type
ArticleAuthors
Železný, J.Gao, H.
Výborný, K.
Zemen, J.
Mašek, J.
Manchon, Aurelien

Wunderlich, J.
Sinova, Jairo
Jungwirth, T.
KAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Spintronics Theory Group
Date
2014-10-06Permanent link to this record
http://hdl.handle.net/10754/346752
Metadata
Show full item recordAbstract
We predict that a lateral electrical current in antiferromagnets can induce nonequilibrium Néel-order fields, i.e., fields whose sign alternates between the spin sublattices, which can trigger ultrafast spin-axis reorientation. Based on microscopic transport theory calculations we identify staggered current-induced fields analogous to the intraband and to the intrinsic interband spin-orbit fields previously reported in ferromagnets with a broken inversion-symmetry crystal. To illustrate their rich physics and utility, we consider bulk Mn2Au with the two spin sublattices forming inversion partners, and a 2D square-lattice antiferromagnet with broken structural inversion symmetry modeled by a Rashba spin-orbit coupling. We propose an antiferromagnetic memory device with electrical writing and reading.Citation
Relativistic Néel-Order Fields Induced by Electrical Current in Antiferromagnets 2014, 113 (15) Physical Review LettersPublisher
American Physical Society (APS)Journal
Physical Review LettersarXiv
1410.8296Additional Links
http://link.aps.org/doi/10.1103/PhysRevLett.113.157201ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevLett.113.157201