Boltzmann theory of the inverse Edelstein effect in a two-dimensional Rashba gas

Fuente: arXiv
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Autores principales: Gaiardoni, Irene, Trama, Mattia, Maiellaro, Alfonso, Guarcello, Claudio, Romeo, Francesco, Citro, Roberta
Formato: Preprint
Publicado: 2026
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author Gaiardoni, Irene
Trama, Mattia
Maiellaro, Alfonso
Guarcello, Claudio
Romeo, Francesco
Citro, Roberta
author_facet Gaiardoni, Irene
Trama, Mattia
Maiellaro, Alfonso
Guarcello, Claudio
Romeo, Francesco
Citro, Roberta
contents We investigate the inverse Edelstein effect in a non-homogeneous system consisting of a ferromagnetic layer coupled to a Rashba two-dimensional electron gas. Within a semiclassical Boltzmann framework, we derive analytical expressions for the charge and spin currents and analyze their dependence on key parameters such as the chemical potential and the Rashba coupling strength. We show how interfacial exchange and spin-orbit interactions jointly control the efficiency of spin-to-charge conversion, leading to distinct regimes characterized by qualitatively different transport responses. A central outcome of our work is the availability of closed-form analytical results, which provide direct physical insight and enable a transparent and quantitative benchmarking with experiments on complex oxide interfaces, such as LaAlO$_3$/SrTiO$_3$.
format Preprint
id arxiv_https___arxiv_org_abs_2601_02473
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Boltzmann theory of the inverse Edelstein effect in a two-dimensional Rashba gas
Gaiardoni, Irene
Trama, Mattia
Maiellaro, Alfonso
Guarcello, Claudio
Romeo, Francesco
Citro, Roberta
Mesoscale and Nanoscale Physics
We investigate the inverse Edelstein effect in a non-homogeneous system consisting of a ferromagnetic layer coupled to a Rashba two-dimensional electron gas. Within a semiclassical Boltzmann framework, we derive analytical expressions for the charge and spin currents and analyze their dependence on key parameters such as the chemical potential and the Rashba coupling strength. We show how interfacial exchange and spin-orbit interactions jointly control the efficiency of spin-to-charge conversion, leading to distinct regimes characterized by qualitatively different transport responses. A central outcome of our work is the availability of closed-form analytical results, which provide direct physical insight and enable a transparent and quantitative benchmarking with experiments on complex oxide interfaces, such as LaAlO$_3$/SrTiO$_3$.
title Boltzmann theory of the inverse Edelstein effect in a two-dimensional Rashba gas
topic Mesoscale and Nanoscale Physics
url https://arxiv.org/abs/2601.02473