TY - JOUR
T1 - A novel approach for preparing Fe(Te xS y) superconducting films
T2 - Solid phase epitaxial growth from amorphous precursors
AU - Yoshimoto, T.
AU - Fujii, Y.
AU - Teranishi, R.
AU - Kurumi, K.
AU - Yoshida, K.
AU - Yoshida, Y.
AU - Ichino, Y.
AU - Nishiyama, T.
AU - Munetoh, S.
AU - Kaneko, K.
PY - 2012/10/1
Y1 - 2012/10/1
N2 - Fe(Te xS y) films were fabricated on (100) SrTiO 3 substrates from Fe(Te 0.65S 0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te xS y) phases, when the amorphous precursors were heated with Fe(Te 0.8S 0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T Czero, of the Fe(Te xS y) film with minimum compositional shift was found to be 9.0K and critical current density, J C, of the film was about 1.4×10 4Acm 2.
AB - Fe(Te xS y) films were fabricated on (100) SrTiO 3 substrates from Fe(Te 0.65S 0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te xS y) phases, when the amorphous precursors were heated with Fe(Te 0.8S 0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T Czero, of the Fe(Te xS y) film with minimum compositional shift was found to be 9.0K and critical current density, J C, of the film was about 1.4×10 4Acm 2.
UR - http://www.scopus.com/inward/record.url?scp=84866321630&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866321630&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/25/10/105013
DO - 10.1088/0953-2048/25/10/105013
M3 - Article
AN - SCOPUS:84866321630
VL - 25
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 10
M1 - 105013
ER -