TY - JOUR
T1 - Chirality-Induced Magnetoresistance Due to Thermally Driven Spin Polarization
AU - Kondou, Kouta
AU - Shiga, Masanobu
AU - Sakamoto, Shoya
AU - Inuzuka, Hiroyuki
AU - Nihonyanagi, Atsuko
AU - Araoka, Fumito
AU - Kobayashi, Masaki
AU - Miwa, Shinji
AU - Miyajima, Daigo
AU - Otani, Yoshichika
N1 - Funding Information:
We thank E. Minamitani, A. Shitade, and M. Haze for fruitful discussions. This work was supported by JSPS-KAKENHI (18H03880 and 19H02586). This work was partially supported by the Spintronics Research Network of Japan (Spin-RNJ).
Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/4/27
Y1 - 2022/4/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85128698307&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85128698307&partnerID=8YFLogxK
U2 - 10.1021/jacs.2c00496
DO - 10.1021/jacs.2c00496
M3 - Article
C2 - 35414173
AN - SCOPUS:85128698307
SN - 0002-7863
VL - 144
SP - 7302
EP - 7307
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 16
ER -