ISSN:
1434-6036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract High-resolution measurements of the specific heat,C, near the ferromagnetic phase transition of the diluted ferromagnetic system EuxSr1−xO are reported. Samples with four different concentrations (x=1,x=0.9,x=0.7 andx=0.5) have been studied and the expected phase diagram, i.e. the linear decrease ofT c with decreasingx, is confirmed. Our specific-heat data of the pure EuO samples yield a critical exponent α=−0.12±0.02 in contrast to literature results, but in agreement with the value expected theoretically for this three-dimensional Heisenberg system. The origin of the discrepancies is traced down to differences in data analysis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01320827
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