Results 31 to 40 of about 166,055 (125)
Spin-Glass and Chiral-Glass Transitions in a $\pm J$ Heisenberg Spin-Glass Model in Three Dimensions [PDF]
J. Phys. Soc. Jpn. 71, 2113 (2002)., 2001 The three-dimensional $\pm J$ Heisenberg spin-glass model is investigated by the non-equilibrium relaxation method from the paramagnetic state. Finite-size effects in the non-equilibrium relaxation are analyzed, and the relaxation functions of the spin-glass susceptibility and the chiral-glass susceptibility in the infinite-size system are obtained ...
arxiv +1 more source
Exploring the critical behavior of the anomalous spin-glass transition in Ga1−xMnxS
AIP AdvancesSingle-crystalline Ga1−xMnxS is a quasi-two-dimensional system that exhibits an anomalous spin-glass transition temperature compared with the other well-known spin-glass systems. In contrast to the other known spin-glasses that all have three-dimensional
T. M. Pekarek +3 more
doaj +1 more source
The 1/m expansion in spin glasses and the de Almeida-Thouless line [PDF]
Phys. Rev. E 86, 031114 (2012), 2012 It is shown by means of a 1/m expansion about the large-m limit of the m-vector spin glass that the lower critical dimension of the de Almeida-Thouless line in spin glasses is equal to the lower critical dimension of the large-m limit of the m-vector spin glass. Numerical studies suggest that this is close to six.
arxiv +1 more source
Spin glass dynamics through the lens of the coherence length
Frontiers in PhysicsSpin glass coherence lengths can be extracted from experiment and from numerical simulations. They encompasses the correlated region, and their growth in time makes them a useful tool for exploration of spin glass dynamics.
J. He, R. L. Orbach
doaj +1 more source
Observation of spin glass behavior in chiral Mn48Fe34Si18 with a β-Mn related structure
AIP Advances, 2019 The ternary silicide system Fe-Mn-Si exhibits several complex magnetic phases and the chemical similarity of Fe and Mn enables these two elements to be mutually substituted over a wide compositional range.
Johannes Kroder +4 more
doaj +1 more source
Quantum-to-classical crossover in the spin glass dynamics of cavity QED simulators
Physical Review ResearchBy solving the quench dynamics of a frustrated many-body spin-boson problem, we investigate the role of spin size on the dynamical formation of spin-glass order. In particular, we observe that quantum and classical spin glasses exhibit markedly different
Hossein Hosseinabadi +2 more
doaj +1 more source
Investigation of experimental signatures of spin glass transition temperature
Frontiers in PhysicsWe present a series of temperature and field-dependent magnetization studies of large single-crystal spin glass samples, focusing on both field-cooled (FC) and zero-field-cooled (ZFC) magnetization studies, as well as ac susceptibility measurements ...
Sahil Pradhan +4 more
doaj +1 more source
Dynamical simulation of spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses [PDF]
, 1998 Spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses are studied with and without randaom magnetic anisotropy by dynamical Monte Carlo simulations. In isotropic case, clear evidence of a finite-temperature chiral-glass transition is presented.
arxiv +1 more source
Metallic Spin Glass in Infinite Dimensions [PDF]
, 2000 We have combined the dynamical mean field theories of the Mott transition and the spin glass in infinite dimensions and derived a metallic spin-glass state from a random spin-fermion model.
arxiv +1 more source
Glass Phenomenology from the Connection to Spin Glasses [PDF]
Phys. Rev. E 75, 031502 (2007), 2006 Typical features of glass phenomenology such as the Vogel-Fulcher law, the Kauzmann paradox and the Adam-Gibbs relationship are shown to follow from the recently discovered mapping of glasses to Ising spin glasses in a magnetic field. There seems to be sufficient universality near the glass transition temperature $T_g$ such that study of the spin glass
arxiv +1 more source