Abstract
We propose a new picture of the Ising-spin-glass phase, based on an Ansatz for the scaling of low-lying large-scale-droplet excitations. We find behavior very different from the infinite-range model. The truncated spatial correlations decay as a power of distance, the ac nonlinear susceptibility diverges as a power of ln, and the magnetization noise power diverges as 1 with logarithmic corrections. A magnetic field destroys the spin-glass phase so that there is no de Almeida-Thouless transition. Defect excitations should yield similar dynamic phenomena in vector spin-glasses.
Original language | English (US) |
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Pages (from-to) | 1601-1604 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 56 |
Issue number | 15 |
DOIs | |
State | Published - 1986 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy