Thermoremanence anomaly in Fe-Zr(B,Cu) Invar metallic glasses: Volume expansion induced ferromagnetism | Zendy

A. Hernando | Zendy; P. Crespo | Zendy; Fernando Castaño | Zendy; J. Arcas | Zendy; M. Multigner | Zendy; J.M. Barandiarán | Zendy; L. Fernández Barquı́n | Zendy

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Thermoremanence anomaly in Fe-Zr(B,Cu) Invar metallic glasses: Volume expansion induced ferromagnetism

Author(s) -

A. Hernando,

P. Crespo,

Fernando Castaño,

J. Arcas,

M. Multigner,

J.M. Barandiarán,

L. Fernández Barquı́n

Publication year - 2000

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.61.3219

Subject(s) - invar , curie temperature , ferromagnetism , condensed matter physics , materials science , thermal expansion , neutron diffraction , magnetic moment , magnetostriction , curie , volume (thermodynamics) , anomaly (physics) , diffraction , magnetic field , physics , metallurgy , thermodynamics , optics , quantum mechanics

We report the existence of a thermally induced sharp increase of thermoremanence around the Curie temperature of Invar-like Fe-Zr(B,Cu) soft magnetic glasses. Neutron-diffraction measurements indicate that a true enhancement of the average local magnetic moment, rather than only a change in the domain structure, occurs. Such enhancement has been tentatively attributed to the increasing volume expansion that takes place beyond the Curie temperature and reinforces ferromagnetism in some low-density clusters

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