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Antiferromagnetic behaviour of Tb2Al alloy

Abstract: The structural, thermal and magnetic properties of the Tb2Al alloy have been investigated by AC/DC magnetic susceptibility, specific heat, X-ray and neutron diffraction measurements. DC and AC-magnetic susceptibility results are consistent with an AFM order at TN = 52 K. The specific heat data show a lambda anomaly associated to the magnetic transition with a peak at 52 K (cord = 99 J/molTbK). The analysis of thermodiffractograms of neutron diffraction patterns indicates that, below the ordering temperature, the magnetic reflections can be indexed with a commensurate lattice related to the crystallographic cell (Pmna) by a propagation vector k = (1/2, 1/2, 1/2). The results are compared with those reported for other magnetic rare earth alloys of R2Al-type (with R = Nd, Gd and Dy).

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Authorship: Rojas D., André G., Rodríguez Fernández J., Sánchez Marcos J., Fernández Barquín L., Echevarria C.,

Congress: Reunión de la Sociedad Española de Técnicas Neutrónicas = Meeting of the Spanish Neutron Scattering Association (5ª : 2010 : Gijón)

Publisher: Institute of Physics

Year of publication: 2011

No. of pages: 5

Publication type: Conference object

DOI: 10.1088/1742-6596/325/1/012023

ISSN: 1742-6588,1742-6596

Spanish project: MAT 2008-06542-c04-04

Publication Url: doi https //doi.org/10.1088/1742-6596/325/1/012023

UCrea Repository Read publication

Authorship

DANIEL ROJAS PUPO

ANDRÉ, G.

JESUS MARIA RODRIGUEZ FERNANDEZ

SÁNCHEZ MARCOS, J.

LUIS FERNANDEZ BARQUIN

CRISTINA ECHEVARRIA BONET

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