Spin-polarized local density of states around vortex in helical p-wave superconductors

29th International Symposium on Superconductivity

Tanaka, Kenta K.^1 ; Ichioka, Masanori^1,2 ; Onari, Seiichiro^1,2

Department of Physics, Okayama University, Okayama

700-8530, Japan^1

Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama

700-8530, Japan^2

关键词: High field;    Knight shifts;    Local density of state;    Magnetic field dependences;    Order parameter;    P wave superconductors;    Spin-polarized;    Vortex lattices;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/871/1/012024/pdf
DOI  :  10.1088/1742-6596/871/1/012024

来源: IOP

【 摘 要 】

Based on the quasi-classical Eilenberger theory, we investigate the magnetic field dependence of order-parameters and spin-polarized local density of states (LDOS) in the vortex lattice state of helical p-wave superconductors. The spin-polarized LDOS is induced by the vorticity coupling to the chirality of up-spin pair or down-spin pair, even when Knight shift does not change. We clarify the instability of the helical p-wave state at high field, and that the spin-polarized LDOS shows the unique behaviors of the helical p-wave state.