Specific heat of normal conducting UPt3 revisited
Using a high-quality single crystal with very high superconducting transition temperature we have measured specific heat of UPt3 in the temperature range from 0.3 to 16 K and in magnetic fields up to 8 T. The focus of this work lies in the normal state properties where, apart from the heavy fermion...
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| Published in | Physica. B, Condensed matter Vol. 329-333; pp. 616 - 617 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.05.2003
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| Online Access | Get full text |
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| Summary: | Using a high-quality single crystal with very high superconducting transition temperature we have measured specific heat of UPt3 in the temperature range from 0.3 to 16 K and in magnetic fields up to 8 T. The focus of this work lies in the normal state properties where, apart from the heavy fermion behaviour, in neutron scattering experiments magnetic correlations have been found to set in at 6 K. However, this ordering has so far not been confirmed in measurements of thermodynamic properties. For the first time we observe a peak in specific heat at 6.7 K, which shifts to 3.2 in 3 T, independent of field direction. We discuss its origin and possible explanations either in terms of the magnetic correlations or impurity contributions. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/S0921-4526(02)02522-X |