Observation of vortex lattice melting in large untwinned YBa₂Cu₃O₇₋ₓ single crystals
Aegerter, C. M. · Keller, H. · Lloyd, S. H. · Kealey, P. G. · Forgan, E. M. · Johnson, S. T. · Riseman, T. M. · Cubitt, R. · Lee, S. L. · Ager, C. · Paul, D. McK. · Savic, I. M. · Yethiraj, M. · Tajima, S. · Rykov, A.
Original · EN
We present a study of the vortex lattice in untwinned YBa₂Cu₃O₇₋ₓ crystals, using a combination of muon spin rotation and neutron small angle scattering measurements. Both methods show a very sharp melting temperature consistent with a first order transition. The dependence of the melting temperature on the angle of the field with respect to the crystallographic c-axis is studied. The results are compared to thermal measurements.
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