Landau–Zener transitions with spin flipping in chiral structures
Abstract
We study Landau–Zener transitions with the spin flipping of electron states in donor–chiral bridge–acceptor structures due to electron spin coupling with the strain tensor induced by the anisotropic phonon field of the chiral bridge molecule, where the transition rates near conical intersections between two potential energy surfaces for the right-handed and left-handed bridge structures are calculated. We find that the flipping rates sensitively depend on the handedness of the bridge molecules and could be significantly enhanced with the increasing of phonon wave vectors, displaying the crucial rules of the electron–phonon coupling for the spin selectivity effect in chiral structures. These results not only shed light on the microscopic mechanisms of chirality–induced spin selectivity but also enlighten the role of spin selectivity in electron transfer in chemical and biological systems.
Article Details
Journal Info
The Journal of Chemical Physics
American Institute of Physics
Authors (6)
Bo-Chen Zhou
Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, School of Science, Tianjin University , Tianjin 300354,
Ran-Bo Yang
Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, School of Science, Tianjin University , Tianjin 300354,
Chun-Yu Cai
Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, School of Science, Tianjin University , Tianjin 300354,
Yue-Wen Wang
Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, School of Science, Tianjin University , Tianjin 300354,
Zhi-Qing Li
Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, School of Science, Tianjin University , Tianjin 300354,
Zi-Wu Wang
Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, School of Science, Tianjin University , Tianjin 300354,