Relativistic Néel-order fields induced by electrical current in antiferromagnets
Status PubMed-not-MEDLINE Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články
- Publikační typ
- časopisecké články MeSH
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 Mn(2)Au 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.
Department of Physics Blackett Laboratory Imperial College London London SW7 2AZ United Kingdom
Department of Physics Texas A and M University College Station Texas 77843 4242 USA
Institute of Physics ASCR Cukrovarnická 10 162 53 Praha 6 Czech Republic
Institute of Physics ASCR Na Slovance 2 182 21 Praha 8 Czech Republic
Citace poskytuje Crossref.org
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