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Magnetic Properties of the Ordered and Disordered CrPt 3 and CrPt Phases
Author(s) -
Besnus M. J.,
Meyer A. J. P.
Publication year - 1973
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220580213
Subject(s) - ferrimagnetism , antiferromagnetism , paramagnetism , condensed matter physics , materials science , stoichiometry , magnetization , spontaneous magnetization , magnetic moment , chemistry , magnetic field , physics , quantum mechanics
The structural and magnetic properties of cold worked and annealed Pt‐Cr alloys with Cr content 14 < c < 60 at% have been investigated. The annealed alloys show a spontaneous magnetization from 18 to 45 at% Cr with a maximum value for ferrimagnetic CrPt 3 . Above 17 at% Cr the appearance of a spontaneous magnetization follows the paramagnetic concentration range of Pt‐Cr alloys, and above 41 at% Cr there is a transition from non stoichiometric ferrimagnetic CrPt 3 to non stoichiometric antiferromagnetic CrPt resulting in a pseudo critical concentration range. The cold worked alloys have a paramagnetic behaviour which is ascribed to an incoherent distribution of localized moments with prevailing antiferromagnetic exchange.