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Orbital Edelstein effect from density-wave order
- Source :
- Phys. Rev. B 100, 075136 (2019)
- Publication Year :
- 2019
-
Abstract
- Coupling between charge and spin, and magnetoelectric effects more generally, have been an area of great interest for several years, with the sought-after ability to control magnetic degrees of freedom via charge currents serving as an impetus. The orbital Edelstein effect (OEE) is a kinetic magnetoelectric effect consisting of a bulk orbital magnetization induced by a charge current. It is the orbital analogue of the spin Edelstein effect in spin-orbit coupled materials, in which a charge current drives nonzero electron spin magnetization. The OEE has recently been investigated in the context of Weyl semimetals and Weyl metals. Motivated by these developments, we study a model of electrons without spin-orbit coupling which exhibits line nodes that get gapped out by via symmetry breaking due to an interaction-induced charge density wave order. This model is shown to exhibit a temperature dependent OEE, which appears due to symmetry reduction into a gyrotropic crystal class.<br />Comment: 10 pages, 10 figures
- Subjects :
- Condensed Matter - Strongly Correlated Electrons
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 100, 075136 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1904.04280
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.100.075136