| Autor: |
C. Boekema, D. E. MacLaughlin, H. Rempp, R. L. Hutson, R. H. Heffner, D. W. Cooke, M. E. Schillaci, A.L. Giorgi, J. L. Smith, R. L. Lichti, A. B. Denison, J. Oostens, J. O. Willis |
| Rok vydání: |
1989 |
| Předmět: |
|
| Zdroj: |
Physical Review B. 39:11345-11357 |
| ISSN: |
0163-1829 |
| DOI: |
10.1103/physrevb.39.11345 |
| Popis: |
Microscopic aspects of magnetism and superconductivity have been studied in the heavy-fermion superconducting alloy systems (U,Th)Be/sub 13/ and (U,Th)Pt/sub 3/ using the technique of positive-muon (..mu../sup +/) spin rotation and relaxation (..mu..SR). In U/sub 1/minus//ital x//Th/sub /ital x//Be/sub 13/, /ital x/=0.033, a striking increase of zero-field Kubo-Toyabe relaxation rate sigma/sub KT/ is observed below the temperature /ital T//sub /ital c/2//congruent/0.4 K at which a second phase transition occurs in the superconducting state. This jump is firm evidence for the onset of weak static magnetism below /ital T//sub /ital c/2/. The observed increase of /similar to/1.5 Oe in the ..mu../sup +/ local field corresponds to an effective moment of 10/sup /minus/3/--10/sup /minus/2/ ..mu../sub /ital B///U atom. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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