Generating giant spin currents using nodal topological superconductors
Noah F. Q. Yuan, Yao Lu, James J. He, K. T. Law
DOI 10.1103/PhysRevB.95.195102 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
In this work, we show that a giant spin current can be injected into a nodal topological superconductor, using a normal paramagnetic lead, through a large number of zero-energy Majorana fermions at the superconductor edge. The giant spin current is caused by the selective equal-spin Andreev reflections (SESARs) induced by Majorana fermions. In each SESAR event, a pair of electrons with certain spin polarization are injected into the nodal topological superconductor, even though the pairing in the bulk of the nodal superconductor is spin-singlet s wave. We further explain the origin of the spin current by showing that the pairing correlation at the edge of a nodal topological superconductor is predominantly equal-spin triplet at zero energy. The experimental consequences of SESARs in nodal topological superconductors are discussed.
Similar papers
Selective Equal-Spin Andreev Reflections Induced by Majorana Fermions
similarity 0.94James J. He et al.
Source status unknown — claims are unverified
Generating Giant Spin Currents Using Nodal Topological Superconductors
similarity 0.91Noah F. Q. Yuan et al. · 2015 · arXiv:1510.03137
Source status unknown — claims are unverified
Universal spin-triplet superconducting correlations of Majorana fermions
similarity 0.91Xin Liu et al.
Source status unknown — claims are unverified
Selective Equal-Spin Andreev Reflections Induced by Majorana Fermions
similarity 0.89James J. He et al. · 2013 · arXiv:1309.1528
Source status unknown — claims are unverified
Nodal s-wave superconductivity in antiferromagnetic semimetals
similarity 0.88Wojciech Brzezicki & Mario Cuoco
Source status unknown — claims are unverified
Spin transfer torque in the presence of Andreev reflections
similarity 0.88Shuai Wang et al.
Source status unknown — claims are unverified