A nodeless superconducting gap in Sr2RuO4 from tunneling spectroscopy.

Authors :: Suderow, H.
Crespo, V.
Guillamon, I.
Vieira, S.
Servant, F.
Lejay, P.
Brison, J. P.
Flouquet, J.
Source :: New Journal of Physics. Sep2009, Vol. 11 Issue 9, p1-8. 8p.
Publication Year :: 2009
Abstract: We report on tunneling spectroscopy measurements using a scanning tunneling microscope (STM) on the spin triplet superconductor Sr2RuO4. A fully open gap, close to the Bardeen-Cooper-Schrieffer (BCS) value, is found, which disappears at the bulk Tc = 1.5 K. The results are discussed in the framework of recent multigap scenarios for an unconventional spin triplet superconductor. [ABSTRACT FROM AUTHOR]