Tunneling spectroscopy and vortex imaging in boron-doped diamond

B. Sacépé; C. Chapelier; C. Marcenat; J. Kačmarčik; T. Klein; M. Bernard; E. Bustarret

doi:10.1103/PhysRevLett.96.097006

Tunneling spectroscopy and vortex imaging in boron-doped diamond

B. Sacépé
, C. Chapelier
, C. Marcenat
, J. Kačmarčik
, T. Klein
, M. Bernard
, E. Bustarret

École Polytechnique

Univ. Joseph Fourier-Grenoble 1
CNRS
University of P.J. Šafárik

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

70 Citations (Scopus)

Résumé

We present the first scanning tunneling spectroscopy study of single-crystalline boron-doped diamond. The measurements were performed below 100 mK with a low temperature scanning tunneling microscope. The tunneling density of states displays a clear superconducting gap. The temperature evolution of the order parameter follows the weak-coupling BCS law with Δ(0)/kBTc 1.74. Vortex imaging at low magnetic field also reveals localized states inside the vortex core that are unexpected for such a dirty superconductor.

langue originale	Anglais
Numéro d'article	097006
journal	Physical Review Letters
Volume	96
Numéro de publication	9
Les DOIs	https://doi.org/10.1103/PhysRevLett.96.097006
état	Publié - 20 mars 2006

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10.1103/PhysRevLett.96.097006

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abstract = "We present the first scanning tunneling spectroscopy study of single-crystalline boron-doped diamond. The measurements were performed below 100 mK with a low temperature scanning tunneling microscope. The tunneling density of states displays a clear superconducting gap. The temperature evolution of the order parameter follows the weak-coupling BCS law with Δ(0)/kBTc 1.74. Vortex imaging at low magnetic field also reveals localized states inside the vortex core that are unexpected for such a dirty superconductor.",

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AU - Marcenat, C.

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AU - Klein, T.

AU - Bernard, M.

AU - Bustarret, E.

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AB - We present the first scanning tunneling spectroscopy study of single-crystalline boron-doped diamond. The measurements were performed below 100 mK with a low temperature scanning tunneling microscope. The tunneling density of states displays a clear superconducting gap. The temperature evolution of the order parameter follows the weak-coupling BCS law with Δ(0)/kBTc 1.74. Vortex imaging at low magnetic field also reveals localized states inside the vortex core that are unexpected for such a dirty superconductor.

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DO - 10.1103/PhysRevLett.96.097006

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Tunneling spectroscopy and vortex imaging in boron-doped diamond

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