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The ordering of the one-dimensional Heisenberg spin glass interacting via the long-range power-law interaction is studied by Monte Carlo simulations. Particular attention is paid to the possible occurrence of the ``spin-chirality…

无序系统与神经网络 · 物理学 2015-06-25 Akihiro Matsuda , Mitsuru Nakamura , Hikaru Kawamura

The nature of the ordering of the one-dimensional Heisenberg spin-glass model with a long-range power-law interaction is studied by extensive Monte Carlo simulations, with particular attention to the issue of the spin-chirality…

无序系统与神经网络 · 物理学 2010-10-13 Dao Xuan Viet , Hikaru Kawamura

Recent studies on the spin and the chirality orderings of the three-dimensional Heisenberg spin glass and related systems are reviewed with particular emphasis on the possible spin-chirality decoupling phenomena. Chirality scenario of real…

无序系统与神经网络 · 物理学 2009-11-11 Hikaru Kawamura

Ordering of the Heisenberg spin glass in four dimensions (4D) with the nearest-neighbor Gaussian coupling is investigated by equilibrium Monte Carlo simulations, with particular attention to its spin and chiral orderings. It is found that…

无序系统与神经网络 · 物理学 2015-08-18 Hikaru Kawamura , Shinichirou Nishikawa

Ordering of the three-dimensional Heisenberg spin glass with Gaussian coupling is studied by extensive Monte Carlo simulations. The model undergoes successive chiral-glass and spin-glass transitions at nonzero temperatures T_{CG} > T_{SG} >…

无序系统与神经网络 · 物理学 2012-01-27 Dao Xuan Viet , Hikaru Kawamura

An extensive equilibrium Monte Carlo simulation is performed on the 3D isotropic Heisenberg SG model with the random nearest-neighbor Gaussian coupling, with particular interest in its chiral-glass (CG) and spin-glass (SG) orderings. For…

无序系统与神经网络 · 物理学 2020-01-29 Takumi Ogawa , Kazuki Uematsu , Hikaru Kawamura

Spin and chirality orderings of the three-dimensional Heisenberg spin glass are studied under magnetic fields in light of the recently developed spin-chirality decoupling-recoupling scenario. It is found by Monte Carlo simulations that the…

无序系统与神经网络 · 物理学 2009-11-07 Hikaru Kawamura , Daisuke Imagawa

The nature of the ordering of the three-dimensional isotropic Heisenberg spin glass with nearest-neighbor random Gaussian coupling is studied by extensive Monte Carlo simulations. Several independent physical quantities are measured both…

无序系统与神经网络 · 物理学 2013-05-29 Dao Xuan Viet , Hikaru Kawamura

The ordering of the three-dimensional isotropic {\it XY} spin glass with the nearest-neighbor random Gaussian coupling is studied by extensive Monte Carlo simulations. To investigate the ordering of the spin and the chirality, we compute…

无序系统与神经网络 · 物理学 2013-06-03 Tomoyuki Obuchi , Hikaru Kawamura

Ordering of the Heisenberg spin glass with the nearest-neighbor Gaussian coupling is investigated by equilibrium Monte Carlo simulations in four and five dimensions. Ordering of the mean-field Heisenberg spin-glass is also studied for…

无序系统与神经网络 · 物理学 2009-11-07 Daisuke Imagawa , Hikaru Kawamura

The spin and the chirality orderings of the Heisenberg spin glass in two dimensions with the nearest-neighbor Gaussian coupling are investigated by equilibrium Monte Carlo simulations. Particular attention is paid to the behavior of the…

无序系统与神经网络 · 物理学 2009-11-10 Hikaru Kawamura , Hitoshi Yonehara

The spin and the chirality orderings of the three-dimensional Heisenberg spin glass with the weak random anisotropy are studied under applied magnetic fields by equilibrium Monte Carlo simulations. A replica symmetry breaking transition…

无序系统与神经网络 · 物理学 2009-11-10 Daisuke Imagawa , Hikaru Kawamura

Equilibrium properties of the three-dimensional isotropic Heisenberg spin glass are studied by extensive Monte Carlo simulations, with particular attention to the nature of its phase transition. A finite-size-scaling analysis is performed…

无序系统与神经网络 · 物理学 2013-05-29 K. Hukushima , H. Kawamura

The ordering of the three-dimensional Heisenberg spin glass with the weak random anisotropy in magnetic fields is studied by extensive equilibrium Monte Carlo simulations. Both the spin and the chirality are monitored. We find strong…

无序系统与神经网络 · 物理学 2009-11-10 Daisuke Imagawa , Hikaru Kawamura

Spin and chirality orderings of a three-dimensional XY spin glass are studied by extensive Monte Carlo simulations. By calculating an appropriately defined spin-overlap distribution function, we show that the finite-temperature chiral-glass…

无序系统与神经网络 · 物理学 2009-11-07 Hikaru Kawamura , Mai Suan Li

We numerically study the non-equilibrium dynamics of the three dimensional Heisenberg Edwards-Anderson spin glass following a sudden quench to its low temperature phase. The subsequent aging behavior of the system is analyzed in detail, and…

无序系统与神经网络 · 物理学 2009-11-10 L. Berthier , A. P. Young

Spin and chirality orderings of the three-dimensional Heisenberg spin glass under magnetic fields are studied by large-scale equilibrium Monte Carlo simulations. It is found that the chiral-glass transition and the chiral-glass ordered…

无序系统与神经网络 · 物理学 2009-11-07 Daisuke Imagawa , Hikaru Kawamura

Extensive equilibrium Monte Carlo simulations are performed for a three-dimensional Heisenberg spin glass with the nearest-neighbor Gaussian coupling to investigate its spin-glass and chiral-glass orderings. The occurrence of a…

无序系统与神经网络 · 物理学 2009-10-31 K. Hukushima , H. Kawamura

Spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses are studied both by equilibrium and off-equilibrium Monte Carlo simulations. Fully isotropic model is found to exhibit a finite-temperature chiral-glass…

无序系统与神经网络 · 物理学 2009-10-31 H. Kawamura , K. Hukushima

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…

无序系统与神经网络 · 物理学 2007-05-23 H. Kawamura , K. Hukushima
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