Superconductivity of YB$_{6 }$. Energy gap and electron-phonon interaction studies by point-contact spectroscopy

POSTER

Abstract

Ytrium hexaboride has the second highest critical temperature, $T_{c} \quad \sim $ 8 K, among all borides. The paper deals with the point-contact-spectroscopy study of its superconducting energy gap. The temperature dependence of the energy gap and the strength of the superconducting coupling are determined as well. By the same method also the electron-phonon interaction in the system is addressed.

Authors

  • Pavol Szabo

    Centre of Low Temperature Physics, IEP Slovak Academy of Sciences \& P.J.\v{S}af\'arik University, Slovakia

  • Jozef Kacmarcik

    Centre of Low Temperature Physics, IEP Slovak Academy of Sciences \& P.J.\v{S}af\'arik University, Slovakia

  • Peter Samuely

    Centre of Low Temperature Physics, IEP Slovak Academy of Sciences \& P.J.\v{S}af\'arik University, Slovakia, Centre of Low Temperature Physics IEP Slovak Academy of Sciences, SK-04001 Kosice, Slovakia

  • Jan Girovsky

    Centre of Low Temperature Physics, IEP Slovak Academy of Sciences \& P.J.\v{S}af\'arik University, Slovakia

  • Slavomir Gabani

    Centre of Low Temperature Physics, IEP Slovak Academy of Sciences \& P.J.\v{S}af\'arik University, Slovakia

  • Karol Flachbart

    Centre of Low Temperature Physics, IEP Slovak Academy of Sciences \& P.J.\v{S}af\'arik University, Slovakia

  • Takao Mori

    Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan