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Crystalline field effects in superconducting La1−xTbxAl2 under pressure |
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| Authors: | E Umlauf P Holzer J Keller M Dietrich W Gey R Meier |
| Institution: | 1. Zentralinstitut für Tieftemperaturforschung der Bayer, Akademie der Wissenschaften, Garching, Germany 2. Fachbereich Physik der Universit?t Regensburg, Regensburg, Germany 3. Institut für Experimentelle Kernphysik der Universit?t, Germany 4. Kernforschungszentrums Karlsruhe, Karlsruhe, Germany |
| Abstract: | The pressure dependence of the superconducting transition temperature of LaAl2 and alloys with Tb and Gd impurities has been measured. The results are compared with a theoretical calculation of the pressure dependence ofT c , which is based on the variation by pressure of the crystalline field experienced by the Tb ions. Measurements onLaGdAl2 where crystal field effects are absent have been used to study the influence of pressure on the scattering rate. |
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