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Title: Giant heat dissipation at the low temperature reversible-irreversible transition in Gd5Ge4
Author: Casanova i Fernàndez, Fèlix
Labarta, Amílcar
Batlle Gelabert, Xavier
Keywords: Propietats magnètiques
Temperatures baixes
Transformacions de fase (Física estadística)
Equacions d'estat
Magnetic properties
Low temperatures
Phase transformations (Statistical physics)
Equations of state
Issue Date: 2005
Publisher: The American Physical Society
Abstract: The heat exchanged at the low-temperature first-order magnetostructural transition is directly measured in Gd5Ge4 . Results show that the origin and the temperature dependence of the heat exchanged varies with the reversible/irreversible character of the first-order transition. In the reversible regime, the heat exchanged by the sample is mostly due to the latent heat at the transition and decreases with decreasing temperature, while in the irreversible regime, the heat is irreversibly dissipated and increases strongly with decreasing temperature, reaching a value of 237 J/kg at 4 K.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2005, vol. 72, núm. 17, p. 172402-1-172402-4
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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