Preparation and superconductivity of iron selenide thin films

FeSe(x) (x = 0.80,0.84,0.88,0.92) thin films were prepared on SrTiO(3)(001)(STO), (La,Sr)(Al,Ta)O(3)(001) (LSAT), and LaAlO(3)(001) (LAO) substrates by a pulsed laser deposition method. All of the thin films show single-phase and c-axis oriented epitaxial growth, and are superconducting. Among them,...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2009-06, Vol.21 (23), p.235702-235702 (4)
Main Authors: Han, Y, Li, W Y, Cao, L X, Zhang, S, Xu, B, Zhao, B R
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Low tc films
Physics
Superconducting films and low-dimensional structures
Superconductivity
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Summary:FeSe(x) (x = 0.80,0.84,0.88,0.92) thin films were prepared on SrTiO(3)(001)(STO), (La,Sr)(Al,Ta)O(3)(001) (LSAT), and LaAlO(3)(001) (LAO) substrates by a pulsed laser deposition method. All of the thin films show single-phase and c-axis oriented epitaxial growth, and are superconducting. Among them, the FeSe(0.88) thin films show a T(c,onset) of 11.8 K and a T(c,0) of 3.4 K. The upper critical magnetic field is estimated to be 14.0 T.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/21/23/235702