3D-melting features of the irreversibility line in overdoped Bi2Sr2CuO6 at ultra-low temperature and high magnetic field
A. Morello, A. G. M. Jansen, R. S. Gonnelli, S. I. Vedeneev
Abstract
We have measured the irreversible magnetization of an overdoped Bi2Sr2CuO6 single crystal up to B=28 T and down to T=60 mK, and extracted the irreversibility line B irr(T): the data can be interpreted in the whole temperature range as a 3D-anisotropic vortex lattice melting line with Lindemann number c L=0.13. We also briefly discuss the applicability of alternative models such as 2D- and quantum melting, and the connection with magnetoresistance experiments.
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