Phase Diagram of the Easy-Axis Triangular-Lattice J1\!-\!J2 Model
Abstract
The phase diagram of the S\!=\!1/2 easy-axis triangular-lattice J1\!-\!J2 model is investigated using the density-matrix renormalization group and analytical insights. We find a significant spin-liquid region extending from the Heisenberg limit and residing between the Y phase-known as the magnetic analogue of the "supersolid"-and collinear stripe phase. The order parameters of the supersolid are analyzed and an understanding of its lack of ferromagnetic moment is suggested.
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