scholarly journals Ordering of the Three-Dimensional Heisenberg Spin Glass in Magnetic Fields

2001 ◽  
Vol 87 (20) ◽  
Author(s):  
Hikaru Kawamura ◽  
Daisuke Imagawa
Keyword(s):  
Magnetic Fields ◽  
Spin Glass ◽  
Three Dimensional ◽  
Heisenberg Spin

scholarly journals DYNAMICAL ASPECTS OF EQUILIBRIUM AND OFF-EQUILIBRIUM SIMULATIONS OF A THREE-DIMENSIONAL HEISENBERG SPIN GLASS

1999 ◽  
Vol 10 (08) ◽  
pp. 1471-1481 ◽  
Author(s):  
H. KAWAMURA ◽  
K. HUKUSHIMA
Keyword(s):  
Glass Transition ◽  
Spin Glass ◽  
Mean Field ◽  
Three Dimensional ◽  
Aging Effect ◽  
Universality Class ◽  
Mean Field Model ◽  
Heisenberg Spin ◽  
The One ◽  
Chiral Glass

Spin-glass and chiral-glass orderings of a three-dimensional isotropic Heisenberg spin glass are studied both by equilibrium and off-equilibrium Monte Carlo simulations with emphasis on their dynamical aspects. The model is found to exhibit a finite-temperature chiral-glass transition without the conventional spin-glass order. Although chirality is an Ising-like quantity from symmetry, universality class of the chiral-glass transition appears to be different from that of the standard Ising spin glass. In the off-equilibrium simulation, while the spin autocorrelation exhibits only an interrupted aging, the chirality autocorrelation persists to exhibit a pronounced aging effect reminiscent of the one observered in the mean-field model.

scholarly journals Effects of anisotropy on a quantum Heisenberg spin glass on a three-dimensional hierarchical lattice

2005 ◽  
Vol 71 (1) ◽  
Author(s):  
J. Ricardo De Sousa ◽  
Beatriz Boechat ◽  
Claudette Cordeiro ◽  
N. S. Branco
Keyword(s):  
Spin Glass ◽  
Three Dimensional ◽  
Hierarchical Lattice ◽  
Heisenberg Spin
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