Quantum impurity spin in Majorana edge fermions

Details Quantum impurity spin in Majorana edge fermions Quantum impurity spin in Majorana edge fermions

2010-04-06

arxiv.org/abs/1004.0750v3

Phys.Rev.B82:180505,2010

Physics

Condensed Matter

Superconductivity

4+ pages, 2 figures

Scientific paper

10.1103/PhysRevB.82.180505

We show that Majorana edge modes of two-dimensional spin-triplet topological superconductors have Ising-like spin density whose direction is determined by the d-vector characterizing the spin-triplet pairing symmetry. Exchange coupling between an impurity spin (S=1/2) and Majorana edge modes is thus Ising-type. Under external magnetic field perpendicular to the Ising axis, the system can be mapped to a two-level system with Ohmic dissipation, which is equivalent to the anisotropic Kondo model. The magnetic response of the impurity spin can serve as a local experimental probe for the order parameter.

Affiliated with

Also associated with

No associations

Rating

Quantum impurity spin in Majorana edge fermions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum impurity spin in Majorana edge fermions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum impurity spin in Majorana edge fermions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-56719