Sen, Arnab ; Wang, Fa ; Damle, Kedar ; Moessner, R. (2009) Triangular and kagome antiferromagnets with a strong easy-axis anisotropy Physical Review Letters, 102 (22). Article ID 227001. ISSN 0031-9007
Full text not available from this repository.
Official URL: http://journals.aps.org/prl/abstract/10.1103/PhysR...
Related URL: http://dx.doi.org/10.1103/PhysRevLett.102.227001
Abstract
We consider S>3/2 kagome and triangular lattice magnets with strong easy-axis single-ion anisotropy D and antiferromagnetic exchange J. When D≫J, the low energy states selected by the anisotropy map onto configurations of the corresponding classical Ising antiferromagnet. Subleading O(J3S/D2) multispin interaction arising from the transverse quantum dynamics makes the low-temperature behavior very different from the well-known classical case: The kagome magnet goes into a semiclassical spin-liquid state with distinctive and unusual short-range correlations below a crossover temperature T∗≈0.08J3S/D2, while the triangular magnet undergoes a first-order transition at Tc≈0.1J3S/D2 to an orientationally ordered collinear state that gives rise to a novel zero-magnetization plateau for small magnetic fields along the easy axis. Possible experimental implications are also discussed.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to American Physical Society. |
ID Code: | 103098 |
Deposited On: | 09 Mar 2018 11:29 |
Last Modified: | 09 Mar 2018 11:29 |
Repository Staff Only: item control page