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Baity Jesi, Marco and Martín Mayor, Víctor and Parisi, G. and Pérez Gaviro, S. (2015) Soft Modes, Localization, and Two-Level Systems in Spin Glasses. Physical Review Letters, 115 (26). ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.115.267205
Abstract
In the three-dimensional Heisenberg spin glass in a random field, we study the properties of the inherent structures that are obtained by an instantaneous cooling from infinite temperature. For a not too large field the density of states g(ω) develops localized soft plastic modes and reaches zero as ω^4 (for large fields a gap appears). When we perturb the system adding a force along the softest mode, one reaches very similar minima of the energy, separated by small barriers, that appear to be good candidates for classical two-level systems.
| Item Type: | Article |
|---|---|
| Additional Information: | © 2015 American Physical Society (APS). |
| Uncontrolled Keywords: | Physics, Multidisciplinary |
| Subjects: | Sciences > Physics |
| ID Code: | 35676 |
| Deposited On: | 12 Feb 2016 15:30 |
| Last Modified: | 18 Oct 2019 14:57 |
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