Anderson disorder-induced nontrivial topological phase transitions in two-dimensional topological superconductors
Hai-Bin Wu, Jian-Jun Liu
DOI 10.1103/PhysRevB.103.115430 · 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
We numerically investigate the quantum phase transitions induced by Anderson disorder in a topological superconductor (TSC), which is composed of a quantum anomalous Hall insulator (QAHI) and a proximity coupled s-wave superconductor (SC). From the transport phenomena presented, we deduce that with the increase of Anderson disorder strength, the topological quantum phase changes from Chern number N=0 to N=1 and finally to N=2. Then we use the effective-medium theory to verify our numerical results and conclude that the phase transitions should ascribe to the negative correction of topological mass.
Similar papers
Proximity-induced superconductivity at nonhelical topological insulator interfaces
similarity 0.88David J. Alspaugh et al.
Source status unknown — claims are unverified
Chiral topological superconductor and half-integer conductance plateau from quantum anomalous Hall plateau transition
similarity 0.88Jing Wang et al.
Source status unknown — claims are unverified
Phase fluctuations in two-dimensional superconductors and pseudogap phenomenon
similarity 0.88Xu-Cheng Wang & Yang Qi
Source status unknown — claims are unverified
Far-from-equilibrium superconductor in fluctuational regime
similarity 0.87A. Petković et al.
Source status unknown — claims are unverified
Probing the helical edge states of a topological insulator by Cooper-pair injection
similarity 0.87P. Adroguer et al.
Source status unknown — claims are unverified
Superconducting properties of Bernevig-Hughes-Zhang model: Theory and applications to transition metal dichalcogenides
similarity 0.87Haijiao Ji & Noah F. Q. Yuan
Source status unknown — claims are unverified