Unusual spin-glass phase in icosahedral Tb-Mg-Zn quasicrystals
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2001-12-01
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American Physical Society
Abstract
The nature of the spin state below the spin freezing temperature was studied in an icosahedral Th-Mg-Zn quasicrystal by thermoremanent dc magnetization time decay as a function of aging time and magnetic field. The system does not exhibit a highly degenerate free-energy landscape obeying an ultrametric organization of metastable states, which makes it essentially different from canonical spin glasses. The Th-Mg-Zn system can be considered as a special class of spin glass, which possesses some local order, but still preserves the notion of spin freezing.
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This article is published as Dolinšek, J., Z. Jagličić, M. A. Chernikov, I. R. Fisher, and P. C. Canfield. "Unusual spin-glass phase in icosahedral Tb-Mg-Zn quasicrystals." Physical Review B 64, no. 22 (2001): 224209.
DOI: 10.1103/PhysRevB.64.224209.
Copyright 2001 American Physical Society.
Posted with permission.