Work

Light-induced orbital magnetism in metals via inverse Faraday effect

Year: 2024

Type: article

Abstract: We present a microscopic calculation of the inverse Faraday effect in metals. We derive a static local magnetic moment induced on the application of high-frequency light, using the Eilenberger formulation of quasiclassical theory. We include the effect of disorder and formulate a theory applicable across the entire temperature range, in the absence of external applied fields. For light-induced electric fields of amplitude ∼ 100 kV/cm , the induced fields are large ∼ 0.1 T for metallic Nb. The predictions of our theory agree with recent experimental and theoretical results [O. H.-C. Cheng , and J. Hurst , ]. An extension of this approach to superconductors would open a new route of inducing orbital magnetic field and potentially vortices in superconductors. Published by the American Physical Society 2024

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.110.094302

Authors: Priya Sharma, Alexander V. Balatsky

Institutions: University of Connecticut, University of Surrey, Nordic Institute for Theoretical Physics, Stockholm University, KTH Royal Institute of Technology

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: University of Connecticut, European Commission, Knut och Alice Wallenbergs Stiftelse, H2020 European Research Council

Awards: G3507277745, G4319685356, G589099301, G788393335