TY - JOUR
T1 - Epitaxial films of FeTe1-xSx fabricated by second harmonic Nd:YAG pulsed laser deposition
AU - Yoshida, K.
AU - Yoshida, Y.
AU - Ichino, Y.
AU - Takai, Y.
AU - Ichinose, A.
AU - Matsumoto, K.
AU - Kiss, T.
AU - Mukaida, M.
PY - 2011/11/1
Y1 - 2011/11/1
N2 - Fe(Te,S) has a tetragonal PbO type structure with Tconset of around 10 K, which is the simplest structure among iron-based superconductors. We deposited Fe(Te,S) thin films by PLD method using the second harmonic light of Nd:YAG pulsed laser (wavelength = 532 nm) in the range of a deposition rate from 14 pm/s to 56 pm/s on MgO, SrTiO3 and LaAlO3 substrates. We obtained the thin films showed the c-axis orientation normal to the film surface and in-plane alignment. The film deposited on LaAlO3 showed Tconset of 9.3 K. Tconset and Tczero increased to 11 K and 6.6 K respectively by the excess adding Te to the stoichiometric target. Tconset was higher than that of a Fe(Te,S) bulk. The lattice constant of the films was strongly related to Tconset. Tconset has local maximum value at 6.195 of c-axis length.
AB - Fe(Te,S) has a tetragonal PbO type structure with Tconset of around 10 K, which is the simplest structure among iron-based superconductors. We deposited Fe(Te,S) thin films by PLD method using the second harmonic light of Nd:YAG pulsed laser (wavelength = 532 nm) in the range of a deposition rate from 14 pm/s to 56 pm/s on MgO, SrTiO3 and LaAlO3 substrates. We obtained the thin films showed the c-axis orientation normal to the film surface and in-plane alignment. The film deposited on LaAlO3 showed Tconset of 9.3 K. Tconset and Tczero increased to 11 K and 6.6 K respectively by the excess adding Te to the stoichiometric target. Tconset was higher than that of a Fe(Te,S) bulk. The lattice constant of the films was strongly related to Tconset. Tconset has local maximum value at 6.195 of c-axis length.
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U2 - 10.1016/j.physc.2011.05.154
DO - 10.1016/j.physc.2011.05.154
M3 - Article
AN - SCOPUS:80055009643
VL - 471
SP - 1185
EP - 1188
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 21-22
ER -