Observation of vortex fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8

verfasst von

D. A. Brawner, A. Schilling, H. R. Ott, R. J. Haug, K. Ploog, K. Von Klitzing

Abstract

Using a micro-Hall probe, measurements of field of first flux penetration Hp and the critical current density Jc have been made near Tc of superconducting Bi2Sr2CaCu2O8. In the temperature region just below Tc=86.0 K; Ts<T<Tc, it was found that Hp and Jc are strongly suppressed, leaving a reversible diamagnetic susceptibility. No similar effect is observed n YBa2Cu3O7-y which suggests that the highly two-dimensional character of Bi2Sr2CaCu2O8 is responsible for its particular behavior. The results are compared with recent theoretical predictions.

Externe Organisation(en)

ETH Zürich
Max-Planck-Institut für Festkörperforschung

Typ

Artikel

Journal

Physical review letters

Band

71

Seiten

785-788

Anzahl der Seiten

4

ISSN

0031-9007

Publikationsdatum

01.01.1993

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Physik und Astronomie (insg.)

Elektronische Version(en)

https://doi.org/10.1103/PhysRevLett.71.785 (Zugang: Unbekannt)