Quantum phase transitions in 2D antiferromagnets
Journal Article
·
· Journal of Low Temperature Physics
- Univ. of California, Santa Barbara, CA (United States)
Quantum Monte Carlo results for the T = 0 order-disorder transition of two-dimensional dimerized quantum Heisenberg antiferromagnets are presented. For a two-layer model, with the dimers having one member on each plane, the finite-size scaling of the staggered structure factor and the staggered susceptibility is consistent with the 3D classical Heisenberg universality class, as required if the transition is described by the 2+1-dimensional non-linear sigma-model. However, for models with the dimers in a single plane, the behavior does not appear to be consistent with this universality class.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG03-85ER45197
- OSTI ID:
- 107590
- Report Number(s):
- CONF-9409365--; CNN: Grant DMR92-06023; Grant UC-94-2-A-213
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 99; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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