Year: 1998
Type: article
Abstract: The isotropic limit of spin systems with orbital degeneracy has global SU(4) symmetry. On many 2D lattices, the ground state does not possess long-range order, which may explain the observed spin liquid properties of ${\mathrm{LiNiO}}_{2}$. In the SU(4) N\'eel-ordered state, spin-spin correlations can be antiferromagnetic between two neighboring sites with parallel magnetic moments.
Source: Physical Review Letters
Authors: Y. Q. Li, Michael Ma, D. N. Shi, F. C. Zhang
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
OpenAlex ID: W2146518949