Current-in-plane magnetoresistance in chiral-molecule/ferromagnetic metal bilayer due to thermally induced spin polarization

2021/12/16 by Kouta Kondou, Masanobu Shiga, Kondou, Kouta +17
Materials Science · Engineering · Physics and Astronomy · #Magnetism in coordination complexes #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena

paper · pdf · doi:10.48550/arxiv.2112.08607

Abstract

We report chirality-induced current-in-plane magnetoresistance (CIP-MR) in chiral molecule/ferromagnetic metal bilayer at room temperature. The previously reported chiralityinduced current-perpendicular-to-plane magnetoresistance (CPP-MR) originates from the chiral induced spin-selectivity (CISS) effect that needs charge-current passing through the molecule. In contrast, the observed CIP-MR in the present study requires no bias charge current through the molecule. The temperature dependence of CIP-MR suggests thermally induced spin-polarization in the chiral molecules is the key for the observed MR.

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