Physics – Condensed Matter – Superconductivity
Scientific paper
2010-07-30
New J. Phys. 12 (2010) 103030
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1088/1367-2630/12/10/103030
The use of piezoelectric substrates enables a dynamic observation of strain dependent properties of functional materials. Based on studies with La1.85Sr0.15CuO4 we extended this approach to the iron arsenic superconductors represented by BaFe2-xCoxAs2 to investigate strain driven changes in detail. We demonstrate that epitaxial thin films can be prepared on (001)Pb(Mg1/3Nb2/3)0.72Ti0.28O3 substrates using pulsed laser deposition. The structural as well as the electric properties of the grown films were characterized in detail. A reversible shift of the superconducting transition of 0.44 K for La1.85Sr0.15CuO4 and 0.2 K for BaFe1.8Co0.2As2 was observed applying a biaxial strain of 0.022% and 0.017% respectively.
Haindl Silvia
Holzapfel Bernhard
Hühne Ruben
Iida Kazumasa
Pahlke Patrick
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