"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

ANOMALOUS SPLITTING OF THE FIRST PENETRATION PEAK IN THE LOCAL MAGNETIZATION OF Bi2Sr2CaCu2O8+y SINGLE CRYSTALS

V. Mihalache1,*

Affiliation

  1. National Institute of Materials Physics, 105 bis Atomistilor Str., Magurele, Bucharest, Romania, and Bilkent University, Ankara, Turkey

Abstract

A scanning Hall probe microscope (SHPM) with an effective spatial resolution of ~1 mm has been used to study the local induction in high quality superconducting Bi2Sr2CaCu2O8+d single crystals at high temperatures and low magnetic fields. We observed, for the first time to our knowledge, an anomalous splitting of the peak of first full penetration of magnetic field. We discuss the observed splitting, which is connected to the effects of surface and geometrical barriers on the vortex lattice..

Keywords

Superconductivity, Bi2Sr2CaCu2O8+d single crystals, Local magnetisation.

Submitted at: Oct. 12, 2005
Accepted at: Nov. 24, 2005

Citation

V. Mihalache, ANOMALOUS SPLITTING OF THE FIRST PENETRATION PEAK IN THE LOCAL MAGNETIZATION OF Bi2Sr2CaCu2O8+y SINGLE CRYSTALS, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 6, pp. 3029-3032 (2005)