Dynamic characteristics of the anomalous second peak in the magnetization curves of Bi-Sr-Ca-Cu-O

Y. Yeshurun; N. Bontemps; L. Burlachkov; A. Kapitulnik

doi:10.1103/PhysRevB.49.1548

Rapid Communication

Dynamic characteristics of the anomalous second peak in the magnetization curves of Bi-Sr-Ca-Cu-O

Y. Yeshurun, N. Bontemps, L. Burlachkov, and A. Kapitulnik

Phys. Rev. B 49, 1548(R) – Published 1 January 1994

Abstract

We present magnetization curves for Bi-Sr-Ca-Cu-O crystals which exhibit an anomalous second peak. Between 20 and 40 K the peak disappears gradually with time. At lower temperatures (18 K) the peak is absent in the short-time limit and it is gradually built up with time. A smooth universal function relates the magnetization at the peak (400 Oe) with that at the minimum (200 Oe) for all isotherms and at any given time, thus demonstrating the absence of the anomalous peak in the short-time limit at all isotherms.

Received 9 August 1993

DOI:https://doi.org/10.1103/PhysRevB.49.1548

Authors & Affiliations

Y. Yeshurun

Laboratoire de Physique de la Matière Condensée, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
Department of Physics, Bar-Ilan University, Ramat Gan 52900, Israel

N. Bontemps