Upper critical field, penetration depth, and depinning frequency of the high-temperature superconductor LaFeAsO0.9F0.1 studied by microwave surface impedance

Narduzzo, A. and Grbić, Mihael Srđan and Požek, Miroslav and Dulčić, Antonije and Paar, Dalibor and Kondrat, A. and Hess, C. and Hellmann, I. and Klingeler, R. and Werner, J. and Kohler, A. and Behr, G. and Buchner, B. (2008) Upper critical field, penetration depth, and depinning frequency of the high-temperature superconductor LaFeAsO0.9F0.1 studied by microwave surface impedance. Physical Review B, 78 (1). pp. 12507-4. ISSN 1098-0121

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Abstract

Temperature-dependent and magnetic-field-dependent measurements of the microwave surface impedance of superconducting LaFeAsO0.9F0.1 (Tc≈26 K) reveal a very large upper critical field (Bc2≈56 T) and a large value of the depinning frequency (f0≈6 GHz); together with an upper limit for the effective London penetration depth, λeff≤200 nm, our results indicate a strong similarity between this system and the high-Tc superconducting cuprates.

Item Type: Article
Keywords: microwave response, upper critical fields, penetration depth
Date: July 2008
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2008) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-1191458-1022
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 27 May 2014 18:32
Last Modified: 12 Feb 2016 16:52
URI: http://digre.pmf.unizg.hr/id/eprint/1822

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