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arXiv · 1703.08328

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

Kenta K. Tanaka·Masanori Ichioka·Seiichiro Onari
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Abstract

Properties of the vortex state in helical p-wave superconductor are studied by the quasi-classical Eilenberger theory. We confirm the instability of the helical p-wave state at high fields and that the spin-polarized local density of states M(E,r) appears even when Knight shift does not change. This is because the vorticity couples to the chirality of up-spin pair or down-spin pair of the helical state. In order to identify the helical p-wave state at low fields, we investigate the structure of the zero-energy M (E = 0, r) in the vortex states, and also the energy spectra of M (E, r).

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Kenta K. Tanaka, Masanori Ichioka, Seiichiro Onari. 2017-03-24. Spin-polarized local density of states in the vortex state of helical p-wave superconductors. https://doi.org/10.1103/physrevb.95.134502

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