Influence of Al doping on the gap values in MgB2 single crystals - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Physica C: Superconductivity and its Applications Année : 2007

Influence of Al doping on the gap values in MgB2 single crystals

Résumé

We report on the evolution of the small and large gap values in Mg1 xAlxB2 single crystals (for x = 0, 0.1 and 0.2) by specific heat and point contact spectroscopy. The values deduced from the temperature dependence of the electronic contribution to the specific heat are very close to those obtained by point contact spectroscopy. The evolution of those gaps with Al concentration suggests that both band filling and interband scattering effects are present and may lead to a merging of the two gaps for Tc 10-15 K.
Fichier non déposé

Dates et versions

hal-00957219 , version 1 (09-03-2014)

Identifiants

  • HAL Id : hal-00957219 , version 1

Citer

Thierry Klein, Zuzana Holanova, C. Marcenat, Laurence Lyard, Jacques Marcus, et al.. Influence of Al doping on the gap values in MgB2 single crystals. 8th Int. Conf. on Mat. and Mechanisms of Superconductivity, Aug 2006, Dresden, Germany. pp.562. ⟨hal-00957219⟩
222 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More