Bean-Livingston surface barriers for flux penetration in Bi 2Sr 2CaCu 2O 8+δ single crystals near the transition temperature

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Bean-Livingston surface barriers for flux penetration in Bi 2Sr 2CaCu 2O 8+δ single crystals near the transition temperature.pdf (311.76 KB)

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2011

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Mihalache V.
Dede, M.
Oral, A.
Miu L.

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Abstract

The first field for magnetic flux penetration H p in Bi 2Sr 2CaCu 2O 8+δ (Bi-2212) single crystals near the critical temperature T c was investigated from the local magnetic hysteresis loops registered for different magnetic field H sweeping rates by using a scanning Hall probe microscope (SHPM) with ∼1 μm effective spatial resolution. Evidences for a significant role of the surface barrier were obtained: the asymmetric shape of the magnetization loops and an anomalous change in the slope of H p(T) close to T c. © 2011 Elsevier B.V. All rights reserved.

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Physica C: Superconductivity and its Applications

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Bi-2212, Magnetization loops, SHPM, Surface barriers, Bean-Livingston surface barrier, Bi-2212, Critical temperatures, Different-magnetic fields, Flux penetration, Magnetic flux penetration, Magnetization loops, Scanning hall probes, SHPM, Spatial resolution, Surface barrier, Surface barriers, Sweeping rate, Diffractive optics, Hysteresis loops, Magnetic fields, Magnetic flux, Magnetic materials, Magnetization, Single crystals

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http://hdl.handle.net/11693/21764

Published Version (Please cite this version)

http://dx.doi.org/10.1016/j.physc.2011.04.015

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Scholarly Publications - Physics

Language

English

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Article