Competition between d-wave and topological p-wave superconducting phases in the 
doped Kitaev-Heisenberg model

Hyart, T.; Wright, A. R.; Khaliullin, G.; Rosenow, B.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Competition between d-wave and topological p-wave superconducting phases in the doped Kitaev-Heisenberg model

MPS-Authors

/persons/resource/persons280133

Khaliullin, G.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Hyart, T., Wright, A. R., Khaliullin, G., & Rosenow, B. (2012). Competition between d-wave and topological p-wave superconducting phases in the doped Kitaev-Heisenberg model. Physical Review B, 85(14): 140510(R).

Cite as: https://hdl.handle.net/21.11116/0000-000E-C5AF-F

Abstract

The competition between Kitaev and Heisenberg interactions away from half filling is studied for the hole-doped Kitaev-Heisenberg t-J(K)-J(H) model on a honeycomb lattice. While the isotropic Heisenberg coupling supports a time-reversal violating d-wave singlet state, we find that the Kitaev interaction favors a time-reversal invariant p-wave superconducting phase, which obeys the rotational symmetries of the microscopic model, and is robust for J(H) < J(K)/2. Within the p-wave superconducting phase, a critical chemical potential |mu| = mu(c) approximate to t separates a topologically trivial phase for |mu| < mu(c) from a topologically nontrivial Z(2) time-reversal invariant spin-triplet phase for |mu| > mu(c).