Work

Temperature and magnetic field dependent g -factors in electron spin resonance spectroscopy

Year: 2025

Type: article

Abstract: We propose that phonons coupled to electrons play an important role in both the fundamental phenomenology of electron spin resonance as well as the interpretation of such measurements. By including spin-dependent electron-phonon interactions originating from spin-orbit coupling, we demonstrate that the g -f actor acquires emergent temperature dependencies that are in excellent agreement with experimental observations. Moreover, we predict that at low temperatures, the g -factor will exhibit a nontrivial dependence on the magnetic field, indicating a dynamic property that has not been previously considered in electron-phonon systems. We further predict the influence of phonons to be negligible at very low and very high temperatures, with the former requiring experimental verification.

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

DOI: 10.1103/bjfk-wlf2

Author: Sebastian Kalhöfer

Institution: Uppsala University

Language: English

Topic: Electron Spin Resonance Studies

Subfield: Biophysics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: hybrid

Funder: Vetenskapsrådet

Award: NAISS