Bean-Livingston surface barriers for flux penetration in Bi 2Sr 2CaCu 2O 8+δ single crystals near the transition temperature
Date
2011
Authors
Mihalache V.
Dede, M.
Oral, A.
Miu L.
Advisor
Instructor
Source Title
Physica C: Superconductivity and its Applications
Print ISSN
0921-4534
Electronic ISSN
Publisher
Volume
471
Issue
19-20
Pages
563 - 565
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
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.
Course
Other identifiers
Book Title
Keywords
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