Topological Phase of Coexisting Superconductivity and 120-Degree Magnetic Order on a Triangular Lattice

Using the t–J–V model, self-consistent calculations of the superconducting order parameter described by a linear combination of dx2−y2+idxy and px + ipy chiral invariants are performed in the phase of coexistence with 120-degree magnetic ordering. Sublattice magnetization is determined in the spin-wave approximation for the case of half-filling. A nontrivial topology of the coexistence phase is demonstrated, testifying to the possibility of obtaining edge states and Majorana modes. © 2018, Allerton Press, Inc.