Spin glasses and nonergodicity

IY Korenblit, EF Shender - Soviet Physics Uspekhi, 1989 - iopscience.iop.org
This review is devoted to spin glasses, ie, disordered magnets with randomly distributed
ferro-and antiferromagnetic exchange interactions. Extensive experimental data and the …

Replicators with random interactions: A solvable model

S Diederich, M Opper - Physical Review A, 1989 - APS
Mean-field methods of statistical physics are applied to replicator selection with N randomly
interacting species and deterministic self-interaction u. We present the outcome of a replica …

Optimised network for sparsely coded patterns

CJP Vicente, DJ Amit - Journal of Physics A: Mathematical and …, 1989 - iopscience.iop.org
The performance of attractor neural networks storing sparsely coded patterns has been
shown to be greatly improved on shifting from the-1,+ 1 representation of neural states to the …

Spin glasses

H Maletta, W Zinn - Handbook on the Physics and chemistry of Rare Earths, 1989 - Elsevier
Op paramagnetic Curie-Weiss temperature K inverse magnetic correlation length/z B Bohr
magneton/xSR muon spin relaxation u critical exponent of correlation length magnetic …

Characteristics of perovskite-related materials

EKH Salje - … Transactions of the Royal Society of London …, 1989 - royalsocietypublishing.org
Oxides with perovskite structure show characteristic features of their physical behaviour that
can be relevant for the understanding of the mantle m aterial (MgFe) SiO3. Perovskites …

Ab initio calculations of effective exchange integrals. Possibilities of superparamagnetic, mictomagnetic and amorphous feromagnetic states for aggregates of …

K Yamaguchi, H Namimoto, T Fueno - Molecular Crystals and …, 1989 - Taylor & Francis
The intermolecular effective exchange integrals (Jab) for clusters of aromatic free radicals
were calculated by the ab initio spin-projected unrestricted Hartree-Fock (UHF) Møller …

The spherical model for spin glasses revisited

A Jagannathan, J Rudnick - Journal of Physics A: Mathematical …, 1989 - iopscience.iop.org
The authors consider the spherical model for a one-component spin glass in the mean-field
limit. Using the replica method they can solve the model exactly, allowing explicitly for …

Magnetostriction of rare-earth random magnetic anisotropy spin glasses

A Del Moral, JI Arnaudas - Physical Review B, 1989 - APS
A model of magnetostriction for single-ion random magnetic anisotropy (RMA) spin glasses
(SG) is developed, the calculation being based on the replica technique. An overall uniform …

Nonexponential relaxation in the random energy model

GJM Koper, HJ Hilhorst - Physica A: Statistical Mechanics and its …, 1989 - Elsevier
We solve a general class of master equations for a system consisting of exponentially
distributed random energy levels. The equations differ in the choice of transition rates; the …

Static and dynamic properties of the ( reentrant-spin-glass amorphous alloy

P Mangin, D Boumazouza, B George, JJ Rhyne… - Physical Review B, 1989 - APS
The reentrant-spin-glass behavior for members of the amorphous (Fe x Cr 1− x) 75 P 15 C
10 and crystalline Fe x Cr 1− x systems are found to be similar when the T C's are the same …