http://www.cnr.it/ontology/cnr/individuo/prodotto/ID40522

Thermodynamic first order transition and inverse freezing in a 3D spin-glass (Articolo in rivista)

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Label

Thermodynamic first order transition and inverse freezing in a 3D spin-glass (Articolo in rivista) (literal)

Anno

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Alternative label

Paoluzzi, M.; Leuzzi, L.; Crisanti, A. (2010)
Thermodynamic first order transition and inverse freezing in a 3D spin-glass
in Physical review letters (Print); American Physical Society (APS), College Pk (Stati Uniti d'America)
(literal)

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Rivista

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UOS Roma, CNR, IPCF, I-00185 Rome, Italy Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy Univ Sapienza, Dipartimento Fis, I-00185 Rome, ItalyDipartimento di Fisica, Università Sapienza di Roma (literal)

Titolo

Thermodynamic first order transition and inverse freezing in a 3D spin-glass (literal)

Abstract

We present a numerical study of the random Blume-Capel model in three dimensions. The phase diagram is characterized by spin-glass-paramagnet phase transitions of both first and second order in the thermodynamic sense. Numerical simulations are performed using the exchange Monte Carlo algorithm, providing clear evidence for inverse freezing. The main features at criticality and in the phase coexistence region are investigated. We are not privy to other 3D short-range systems with quenched disorder undergoing inverse freezing. (literal)

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