UNIGE document Scientific Article
previous document  unige:26789  next document
add to browser collection
Title

Node-like excitations in superconducting PbMo6S8 probed by scanning tunneling spectroscopy

Authors
Potel, M.
show hidden authors show all authors [1 - 9]
Published in Physical Review. B, Condensed Matter. 2007, vol. 75, no. 10, p. 104501
Abstract We present a scanning tunneling spectroscopy study on the Chevrel phase PbMo6S8, an extreme type-II superconductor with a coherence length only slightly larger than in high-Tc cuprates. Tunneling spectra measured on atomically flat terraces are spatially homogeneous and show well-defined coherence peaks. The low-energy spectral weight, the zero bias conductance, and the temperature dependence of the gap are incompatible with a conventional isotropic s-wave interpretation, revealing the presence of low-energy excitations in the superconducting state. We show that our data are consistent with the presence of nodes in the superconducting gap.
Identifiers
Full text
Structures
Citation
(ISO format)
DUBOIS, Cédric et al. Node-like excitations in superconducting PbMo6S8 probed by scanning tunneling spectroscopy. In: Physical Review. B, Condensed Matter, 2007, vol. 75, n° 10, p. 104501. https://archive-ouverte.unige.ch/unige:26789

231 hits

109 downloads

Update

Deposited on : 2013-03-13

Export document
Format :
Citation style :