Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

147480.pdf (132.26 KB)

Document type

Article

Version

Published version

Publication date

1997

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12793

Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

http://dx.doi.org/10.1103/PhysRevLett.79.3926

Abstract

We 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.

Subject

Equacions d'estat, Ciència dels materials, Regla de les fases i equilibri

Subject (English)

Equations of state, Materials science, Phase rule and equilibrium

Citation

Collections

Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

PLANES VILA, Antoni, et al. Premartensitic transition driven by magnetoelastic interaction in bcc ferromagnetic Ni2MnGa. Physical Review Letters. 1997. Vol. 79, num. 20, pags. 3926-3929. ISSN 0031-9007. [consulted: 14 of August of 2026]. Available at: https://hdl.handle.net/2445/12793

Export metadata

JSON - METS

Share record