Spin-triplet superconducting pairing in doped MoS2

Jingyao Wang; Xiao Zhang; Runyu Ma; Guang Yang; Eduardo V. Castro; Tianxing Ma

doi:10.1103/PhysRevB.106.134513

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Spin-triplet superconducting pairing in doped MoS2

Jingyao Wang, Xiao Zhang, Runyu Ma, Guang Yang, Eduardo V. Castro, Tianxing Ma

DOI 10.1103/PhysRevB.106.134513 · Physical Review B

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Abstract

The search for triplet superconductivity has been pursued intensively in a broad field of material science and quantum information for decades. Nevertheless, these novel states remain rare. Within a simplified effective three-orbital model, we reveal a spin triplet pairing in doped MoS2 by employing both the finite-temperature determinant quantum Monte Carlo approach and the ground-state constrained-phase quantum Monte Carlo method. In a wide filling region of 〈n〉=0.60–0.80 around charge neutrality 〈n〉=2/3, the f-wave pairing dominates over other symmetries. The pairing susceptibility strongly increases as the on-site Coulomb interaction increases, and it is insensitive to spin-orbit coupling.