Physics – Condensed Matter – Superconductivity
Scientific paper
2006-06-28
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1088/0953-8984/18/35/020
We present results of anisotropic thermal expansion and low temperature magnetostriction measurements on YNi$_2$B$_2$C single crystals grown by high temperature flux and floating zone techniques. Quantum oscillations of magnetostriction were observed at low temperatures for $H \| c$ starting at fields significantly below $H_{c2}$ ($H < 0.7 H_{c2}$). Large irreversible, longitudinal magnetostriction was seen in both, in-plane and along the c-axis, directions of the applied magnetic field in the intermediate superconducting state. Anisotropic uniaxial pressure dependencies of $T_c$ were evaluated using results of zero field, thermal expansion measurements.
Bud'ko Sergey L.
Canfield Paul. C.
Lapertot Gerard
Schmiedeshoff G. M.
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