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On the competition between superconductivity and magnetism in CeCu2Si2

✍ Scribed by R. Feyerherm; A. Amato; C. Geibel; F.N. Gygax; P. Hellmann; R.H. Heffner; D.E. MacLaughlin; R. Müller-Reisener; G.J. Nieuwenhuys; A. Schenck; F. Steglich

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
248 KB
Volume
206-207
Category
Article
ISSN
0921-4526

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✦ Synopsis

Muon spin relaxation measurements in zero magnetic field on several polycrystalline samples provide evidence that superconductivity and magnetic order do not coexist on a microscopic scale but develop inhomogeneously in Cel+xCu2+rSi2. The distribution of magnetic and superconducting domains depends on the temperature and sensitively on variations of the stoichiometry. Superconductivity sets in first in the paramagnetic domains and, on further cooling, reduces the magnetically ordered volume fraction. However, in all samples down to T = 60 mK considerable portions remain magnetic.

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