Fabrication of FeSe1-x superconducting films with bulk properties

Title
Fabrication of FeSe1-x superconducting films with bulk properties
Author(s)
김동호황태종강원남[강원남]정순길[정순길]이남훈[이남훈]최은미[최은미]이성익[이성익]
Keywords
MAGNETIC-PROPERTIES; PHASE-DIAGRAM
Issue Date
201012
Publisher
ELSEVIER SCIENCE BV
Citation
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, v.470, no.22, pp.1977 - 1980
Abstract
We have fabricated high-quality FeSe1-x superconducting films with a bulk T-c of 11-12 K on different substrates, Al2O3(0001), SrTiO3(100), MgO(100), and LaAlO3(100), by using a pulsed laser deposition technique. All the films were grown at a high substrate temperature of 610 degrees C, and were preferentially oriented along the (101) direction, the latter being to be a key to fabricating of FeSe1-x superconducting thin films with high T-c. According to the energy dispersive spectroscopy data, the Fe:Se composition ratio was 1:0.90 +/- 0.02. The FeSe1-x film grown on a SrTiO3 substrate showed the best quality with a high upper critical magnetic field [H-c2(0)] of 56 T. (C)2010 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/23268http://dx.doi.org/10.1016/j.physc.2010.08.011
ISSN
0921-4534
Appears in Collections:
이과대학 > 물리학과 > Articles
기초교육대학 > 교양학부 > Articles
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