Commensurate and incommensurate ground states of Cs_2CuCl_4 in a magnetic field
| dc.creator | Veillette, M. Y. | |
| dc.creator | Chalker, J. T. | |
| dc.date | 2006-01-12 | |
| dc.date.accessioned | 2026-07-07T06:57:31Z | |
| dc.date.available | 2026-07-07T06:57:31Z | |
| dc.description | We present calculations of the magnetic ground state of Cs_2CuCl_4 in an applied magnetic field, with the aim of understanding the commensurately ordered state that has been discovered in recent experiments. This layered material is a realization of a Heisenberg antiferromagnet on an anisotropic triangular lattice. Its behavior in a magnetic field depends on field orientation, because of weak Dzyaloshinskii-Moriya interactions.We study the system by mapping the spin-1/2 Heisenberg Hamiltonian onto a Bose gas with hard core repulsion. This Bose gas is dilute, and calculations are controlled, close to the saturation field. We find a zero-temperature transition between incommensurate and commensurate phases as longitudinal field strength is varied, but only incommensurate order in a transverse field. Results for both field orientations are consistent with experiment. | |
| dc.description | 5 Pages, 3 Figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0601268 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0601268 | |
| dc.identifier | Phys. Rev. B 74, 052402 (2006) | |
| dc.identifier | doi:10.1103/PhysRevB.74.052402 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/106996 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Commensurate and incommensurate ground states of Cs_2CuCl_4 in a magnetic field | |
| dc.type | text |