Department of Physics Papers
Document Type
Journal Article
Date of this Version
9-1-1995
Publication Source
Physical Review B
Volume
52
Issue
9
Start Page
6684
Last Page
6705
DOI
10.1103/PhysRevB.52.6684
Abstract
We study the effect of quantum fluctuations on the multiphase point of the Heisenberg model with first- and second-neighbor competing interactions and strong uniaxial spin anisotropy D. By studying the structure of perturbation theory we show that the multiphase degeneracy which exists for S=∞ (i.e., for the axial next-nearest-neighbor Ising model) is lifted and that the effect of quantum fluctuations is to stabilize a sequence of phases of wavelength 4,6,8, . . . . This sequence is probably an infinite one. We also show that quantum fluctuations can mediate an infinite sequence of layering transitions through which an interface can unbind from a wall.
Recommended Citation
Harris, A., Micheletti, C., & Yeomans, J. M. (1995). Lifting of Multiphase Degeneracy by Quantum Fluctuations. Physical Review B, 52 (9), 6684-6705. http://dx.doi.org/10.1103/PhysRevB.52.6684
Date Posted: 12 August 2015
This document has been peer reviewed.
Comments
At the time of publication, author A. Brooks Harris was affiliated with Oxford University, Oxford, United Kingdom, and Tel Aviv University, Tel Aviv, Israel. Currently, he is a faculty member in the Physics Department at the University of Pennsylvania.