Year: 2015
Type: article
Abstract: We study the $S=1/2$ Heisenberg model on the triangular lattice with nearest- and next-nearest-neighbor interactions ${J}_{1}$ and ${J}_{2}$ with the density matrix renormalization group, on long open cylinders with widths up to nine lattice spacings. In an intermediate ${J}_{2}$ region $0.06\ensuremath{\lesssim}{J}_{2}/{J}_{1}\ensuremath{\lesssim}0.17$, we find evidence for a spin liquid (SL) state with short range spin-spin, bond-bond, and chiral correlation lengths, bordered by a classical ${120}^{\ensuremath{\circ}}$ N\'eel ordered state at small ${J}_{2}$ and by a two sublattice collinear magnetically ordered state at larger ${J}_{2}$. Focusing on ${J}_{2}/{J}_{1}=0.1$, we find a number of signatures of a gapped SL phase.
Source: Physical Review B
Authors: Zhenyue Zhu, Steven R. White
Institution: University of California, Irvine
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1584600196