Depairing field, onset temperature and the nature of the transition in cuprates

Lu Li; Yayu Wang; J. G. Checkelsky; M. J. Naughton; Seiki Komiya; Shimpei Ono; Yoichi Ando; N. P. Ong

doi:10.1016/j.physc.2007.03.298

paper

Depairing field, onset temperature and the nature of the transition in cuprates

arXiv:cond-mat/0610714 · doi:10.1016/j.physc.2007.03.298

Abstract

The depairing (upper critical) field $H_{c 2}$ in hole-doped cuprates has been inferred from magnetization curves $M$ - $H$ measured by torque magnetometry in fields $H$ up to 45 T. We discuss the implications of the results for the pair binding energy, the Nernst onset temperature, fluctuations and the nature of the Meissner transition at $T_{c}$ .

4 pages, 5 figs., proc. M2S-HTSC-VIII, Dresden 2006, Physica (in press)