Spin-Dependent Momentum Conservation of Electron-Phonon Scattering in Chirality-Induced Spin Selectivity

• URL: http://arxiv.org/abs/2209.05323v1
• Date: Mon, 12 Sep 2022 15:29:00 GMT
• Title: Spin-Dependent Momentum Conservation of Electron-Phonon Scattering in Chirality-Induced Spin Selectivity
• Authors: Clemens Vittmann, James Lim, Dario Tamascelli, Susana F. Huelga, Martin B. Plenio
• Abstract summary: We show that spin selectivity can originate from spin-dependent energy and momentum conservation in electron-phonon scattering events. The degree of spin polarization depends on environmental factors, such as external driving fields, temperatures and phonon relaxation rates.
• Score: 1.3124513975412255
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The elucidation of the mechanisms behind chiral-induced spin selectivity remains an outstanding scientific challenge. Here we consider the role of delocalised phonon modes in electron transport in chiral structures and demonstrate that spin selectivity can originate from spin-dependent energy and momentum conservation in electron-phonon scattering events. While this mechanism is robust to the specifical nature of the vibrational modes, the degree of spin polarization depends on environmental factors, such as external driving fields, temperatures and phonon relaxation rates. This dependence is used to present experimentally testable predictions of our model.

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