ISSN:
1434-6036
Keywords:
75.30.-m
;
75.50.Ee
;
71.70.Gm
;
75.30.Et
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The temperature dependence of the lattice constants of the alloys, RCu2Ge2 (R=Nd, Tb, Dy, Ho and Tm) shows the existence of a lattice strain due to the alignment of the 4f-electric quadrupole at low temperatures. This strain could be related to the deviation of the Néel temperatures (T N ) from that predicted by de Gennes scaling, thereby indicating the role of the quadrupole on the magnetism. On the other hand, in PrCu2Ge2, for which the enhancement ofT N is the largest in thisR series, the lattice constants interestingly behave as if the 4f-quadrupole moment is almost quenched and the anomalous magnetism in this case is attributed to some degree of 4f-delocalisation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01312176
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