BROWSE

Related Scientist

Researcher

김지훈
원자제어 저차원 전자계 연구단
more info

Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film

Cited 1 time in webofscience Cited 0 time in scopus
413 Viewed 22 Downloaded
Title
Strong magnetic field dependence of critical current densities and vortex activation energies in an anisotropic clean MgB2 thin film
Author(s)
Jeehoon Kim; Haberkorn, N; Nazaretski, E; de Paula, R; Tan, T; Xi, XX; Tajima, T; Movshovich, R; Civale, L
Publication Date
2015-02
Journal
SOLID STATE COMMUNICATIONS, v.204, no., pp.56 - 60
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
We report the influence of two-band superconductivity on the flux creep and the critical current densities of a MgB2 thin film. The small magnetic penetration depth of λ¼50 +_10nm at T¼4 Kis related to a clean π-band. We find a high self-field critical current density Jc, which is strongly reduced with applied magnetic field, and attribute this to suppression of the superconductivity in the π-band. The temperature dependence of the creep rate S (T) at low magnetic field can be explained by a simple Anderson–Kim mechanism. The system shows high pinning energies at low field that are strongly suppressed by high field.
URI
https://pr.ibs.re.kr/handle/8788114/1686
ISSN
0038-1098
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > Journal Papers (저널논문)
Files in This Item:
1-s2.0-S0038109814004827-main.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse