Anisotropic thermal expansion and magnetostriction of YNi2B2C single crystals
Abstract
We present results of anisotropic thermal expansion and low temperature magnetostriction measurements on YNi2B2C 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 Hc2 (H < 0.7 Hc2). 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 Tc were evaluated using results of zero field, thermal expansion measurements.
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