TY - JOUR
T1 - Twisted molecular wires polarize spin currents at room temperature
AU - Ko, Chih-Hung
AU - Zhu, Qirong
AU - Tassinari, Francesco
AU - Bullard, George
AU - Zhang, Peng
AU - Beratan, David N
AU - Naaman, Ron
AU - Therien, Michael J
PY - 2022/2/8
Y1 - 2022/2/8
N2 - A critical spintronics challenge is to develop molecular wires that render efficiently spin-polarized currents. Interplanar torsional twisting, driven by chiral binucleating ligands in highly conjugated molecular wires, gives rise to large near-infrared rotational strengths. The large scalar product of the electric and magnetic dipole transition moments ([Formula: see text]), which are evident in the low-energy absorptive manifolds of these wires, makes possible enhanced chirality-induced spin selectivity-derived spin polarization. Magnetic-conductive atomic force microscopy experiments and spin-Hall devices demonstrate that these designs point the way to achieve high spin selectivity and large-magnitude spin currents in chiral materials.
AB - A critical spintronics challenge is to develop molecular wires that render efficiently spin-polarized currents. Interplanar torsional twisting, driven by chiral binucleating ligands in highly conjugated molecular wires, gives rise to large near-infrared rotational strengths. The large scalar product of the electric and magnetic dipole transition moments ([Formula: see text]), which are evident in the low-energy absorptive manifolds of these wires, makes possible enhanced chirality-induced spin selectivity-derived spin polarization. Magnetic-conductive atomic force microscopy experiments and spin-Hall devices demonstrate that these designs point the way to achieve high spin selectivity and large-magnitude spin currents in chiral materials.
UR - http://www.scopus.com/inward/record.url?scp=85124058263&partnerID=8YFLogxK
U2 - 10.1073/pnas.2116180119
DO - 10.1073/pnas.2116180119
M3 - Article
C2 - 35115404
SN - 0027-8424
VL - 119
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 6
M1 - e2116180119
ER -