http://www.cnr.it/ontology/cnr/individuo/prodotto/ID225106
Thermodynamics of volume-collapse transitions in cerium and related compounds (Articolo in rivista)
- Type
- Label
- Thermodynamics of volume-collapse transitions in cerium and related compounds (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.actamat.2005.07.027 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- S. Bustingorry (a); E.A. Jagla (a); J. Lorenzana (b) (literal)
- Pagina inizio
- Pagina fine
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- http://www.sciencedirect.com/science/article/pii/S1359645405004441 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (a) Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Atómico Bariloche, 8400 Bariloche, Argentina
(b) SMC, INFM, ISC, CNR, Dipartimento di Fisica, Università di Roma, \"La Sapienza\" P. Aldo Moro 2, 00185 Roma, Italy (literal)
- Titolo
- Thermodynamics of volume-collapse transitions in cerium and related compounds (literal)
- Abstract
- We present a non-linear elastic model of a coherent transition with discontinuous volume change in an isotropic solid. The model reproduces the anomalous thermodynamics typical of coherent equilibrium including intrinsic hysteresis (for a pressure driven experiment) and a negative bulk modulus. The novelty of the model is that the statistical mechanics solution can be easily worked out. We find that coherency leads to an infinite-range density-density interaction, which drives classical critical behavior. The pressure width of the hysteresis loop shrinks with increasing temperature, ending at a critical point at a temperature related to the shear modulus. The bulk modulus softens with a 1/2 exponent at the transition even far from the critical point. Many well known features of the phase diagram of Ce and related systems are explained by the model (literal)
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