Topological superconductivity in the Kondo-Kitaev model
Wonjune Choi, Philipp W. Klein, Achim Rosch, Yong Baek Kim
DOI 10.1103/PhysRevB.98.155123 · 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 investigate possible topological superconductivity in the Kondo-Kitaev model on the honeycomb lattice, where the Kitaev spin liquid is coupled to conduction electrons via the Kondo coupling. We use the self-consistent Abrikosov-fermion mean-field theory to map out the phase diagram. Upon increasing the Kondo coupling, a first-order transition occurs from the decoupled phase of spin liquid and conduction electrons to a ferromagnetic topological superconductor of Class D with a single chiral Majorana edge mode. This is followed by a second-order transition into a paramagnetic topological superconductor of Class DIII with a single pair of helical Majorana edge modes. These findings offer a route to topological superconductivity in the Kondo lattice system. We discuss the connection between topological nature of the Kitaev spin liquid and topological superconductors obtained in this model.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Se3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Topological superconductivity in Landau levels
similarity 0.97Gun Sang Jeon et al.
Source status unknown — claims are unverified
Effects of an electronic topological transition for anisotropic low-dimensional superconductors
similarity 0.97G. G. N. Angilella et al.
Source status unknown — claims are unverified
Topological superconductivity in an ultrathin, magnetically-doped topological insulator proximity coupled to a conventional superconductor
similarity 0.97Youngseok Kim et al.
Source status unknown — claims are unverified
Cross-Correlated Responses of Topological Superconductors and Superfluids
similarity 0.96Kentaro Nomura et al.
Source status unknown — claims are unverified
Superconductivity in multiband disordered systems: A vector recursion approach
similarity 0.96Shreemoyee Ganguly et al.
Source status unknown — claims are unverified
Topological surface superconductivity in doped Weyl loop materials
similarity 0.96Yuxuan Wang & Rahul M. Nandkishore
Source status unknown — claims are unverified