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dc.contributor.authorPlanes Vila, Antonicat
dc.contributor.authorObradó Llauradó, Eduardcat
dc.contributor.authorGonzàlez Comas, Alfonscat
dc.contributor.authorMañosa, Lluíscat
dc.description.abstractWe show that the magnetoelastic coupling between the magnetization and the amplitude of a short wavelength phonon enables the existence of a first order premartensitic transition from a bcc to a micromodulated phase in Ni2MnGa. Such a magnetoelastic coupling has been experimentally evidenced by ac susceptibility and ultrasonic measurements under an applied magnetic field. A latent heat around 9 J/mol has been measured using a highly sensitive calorimeter. This value is in very good agreement with the value predicted by a proposed model.eng
dc.format.extent4 p.-
dc.publisherAmerican Physical Societyeng
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per APS i
dc.relation.ispartofPhysical Review Letters, 1997, vol. 79, núm. 20, p. 3926-3929cat
dc.rights(c) American Physical Society, 1997eng
dc.subject.classificationEquacions d'estatcat
dc.subject.classificationCiència dels materialscat
dc.subject.classificationRegla de les fases i equilibricat
dc.subject.otherEquations of stateeng
dc.subject.otherMaterials scienceeng
dc.subject.otherPhase rule and equilibriumeng
dc.titlePremartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGaeng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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