Spectra of Condensed Modes in Spin-Glasses: Mean Field Theory and Time Dependence
- 14 November 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 51 (20) , 1880-1883
- https://doi.org/10.1103/physrevlett.51.1880
Abstract
A mean-field theory for spin-glasses is constructed in terms of coexisting spontaneous symmetry breaking in a whole spectrum of localized eigenstates of the exchange interaction. The spectrum moves with time as the smallest frozen modes begin to disorder, providing a simple physical picture of the universally observed features of the time dependence of the susceptibility. Similar dynamics are expected in disordered ferromagnets.Keywords
This publication has 9 references indexed in Scilit:
- Dynamics of the Relaxation-Time Spectrum in a CuMn Spin-GlassPhysical Review Letters, 1983
- Low-field susceptibility measurements on a Au-Fe spin glassJournal of Physics F: Metal Physics, 1982
- Experimental indications for a critical relaxation time in spin-glassesPhysical Review B, 1982
- Off-diagonal disorder on square and cubic latticesJournal of Physics C: Solid State Physics, 1982
- Critical behaviour of the 2D Ising model with impurity bondsJournal of Physics C: Solid State Physics, 1982
- Measurement of complex susceptibility on a metallic spin glass with broad relaxation spectrumJournal of Magnetism and Magnetic Materials, 1981
- On the frequency dependence of the transition temperature in spin glassesSolid State Communications, 1980
- Marginal Fluctuations in a Bose GlassPhysical Review Letters, 1979
- Localisation theory and the CuMn problem: Spin glassesMaterials Research Bulletin, 1970