Phase transtions in frustrated two-dimensionalXYmodels
作者： S. Teitel , C. Jayaprakash
关键词: Phase (matter) 、 Mathematical Operators 、 Josephson effect 、 Square lattice 、 Helicity 、 Coupling (probability) 、 Condensed matter physics 、 Zero (complex analysis) 、 Physics 、 Phase transition
摘要: We study the fully frustrated $\mathrm{XY}$ model on a square lattice with use of Monte Carlo simulations. find phase transition at finite temperature ${T}_{I}$ specific-heat data being consistent logarithmic divergence. The helicity modulus $\ensuremath{\Upsilon}$ jumps to zero value $\frac{\ensuremath{\Upsilon}}{{k}_{B}T}\ensuremath{\gtrsim}\frac{2}{\ensuremath{\pi}}$ $T\ensuremath{\lesssim}{T}_{I}$. application models behavior coupled Josephson junction arrays is discussed.
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