Order-disorder transition in a two-layer quantum antiferromagnet

Journal Article · Mon Apr 25 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.2777· OSTI ID:7206573

Sandvik, A W; Scalapino, D J ^[1]

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1. Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106 (United States)

We have studied the antiferromagnetic order-disorder transition occurring at [ital T]=0 in a two-layer quantum Heisenberg antiferromagnet as the interplane coupling is increased. Finite-size scaling of quantum Monte Carlo results for the staggered structure factor gives the critical ratio [ital J][sub [ital c]]=2.51[plus minus]0.02 between the interplane and in-plane coupling constants. The critical behavior is consistent with the 3D classical Heisenberg universality class. Results for the uniform magnetic susceptibility and the correlation length at finite temperature are compared with recent predictions for the (2+1)-dimensional nonlinear [sigma] model.

• DOE Contract Number: FG03-85ER45197
• OSTI ID: 7206573
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:17; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

665411 -- Basic Superconductivity Studies-- (1992-)
665430* -- Other Topics in Quantum Fluids & Solids-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CALCULATION METHODS
CRITICALITY
CRYSTAL MODELS
HEISENBERG MODEL
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATHEMATICAL MODELS
MONTE CARLO METHOD
ORDER-DISORDER TRANSFORMATIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SCALING LAWS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE ZERO K