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Chirality-Induced Magnetoresistance Due to Thermally Driven Spin Polarization.

ABSTRACT: Chirality-induced current-perpendicular-to-plane magnetoresistance (CPP-MR) originates from current-induced spin polarization in molecules. The current-induced spin polarization is widely recognized as a fundamental principle of chiral-induced spin selectivity (CISS). In this study, we investigate chirality-induced current-in-plane magnetoresistance (CIP-MR) in a chiral molecule/ferromagnetic metal bilayer at room temperature. In contrast to CPP-MR, CIP-MR observed in the present study requires no bias charge current through the molecule. The temperature dependence of CIP-MR suggests that thermally driven spontaneous spin polarization in chiral molecules is the key to the observed MR. The novel MR is consistent with recent CISS-related studies, that is, chiral molecules in contact with a metallic surface possess a finite spin polarization.

SUBMITTER: Kondou K

PROVIDER: S-EPMC9052755 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature

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Chirality-Induced Magnetoresistance Due to Thermally Driven Spin Polarization.

Kondou Kouta K Shiga Masanobu M Sakamoto Shoya S Inuzuka Hiroyuki H Nihonyanagi Atsuko A Araoka Fumito F Kobayashi Masaki M Miwa Shinji S Miyajima Daigo D Otani YoshiChika Y

Journal of the American Chemical Society 20220412 16

Chirality-induced current-perpendicular-to-plane magnetoresistance (CPP-MR) originates from current-induced spin polarization in molecules. The current-induced spin polarization is widely recognized as a fundamental principle of chiral-induced spin selectivity (CISS). In this study, we investigate chirality-induced current-in-plane magnetoresistance (CIP-MR) in a chiral molecule/ferromagnetic metal bilayer at room temperature. In contrast to CPP-MR, CIP-MR observed in the present study requires ...[more]

PMID: 35414173

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