Anomalous transition from antiferromagnetic to ferromagnetic order in the pseudoternary series TbNi(1-x)CuxAl
Hahn-Meitner-Institut Berlin - Glienicker Str. 100, 14109 Berlin, Germany
2 Institut f. Kristallographie - Charlottenstr. 33, 72070 Tübingen, Germany
3 Institut Laue-Langevin - BP 156, 38042 Grenoble, France
Accepted: 7 January 1997
Neutron diffraction and susceptibility measurements have been performed to investigate the anomalous transition from antiferro- to ferromagnetic order which takes place in the ternary intermetallic compound TbNiAl when Ni is substituted for Cu within the same crystal structure. The transition is anomalous because 1) a few per cent of Cu already suppresses antiferromagnetism, 2) both ferro- and antiferromagnetic types of order coexist in different “domains" in the transition range , and 3) the balance between both types of domains further depends on temperature.
PACS: 61.12.Ex – Neutron scattering techniques (including small-angle scattering) / 75.30.Kz – Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
© EDP Sciences, 1997