Reversible shift in the superconducting transition for La1.85Sr0.15CuO4 and BaFe1.8Co0.2As2 using piezoelectric substrates

Sascha Trommler; Ruben Hühne; Kazumasa Iida; Patrick Pahlke; Silvia Haindl; Ludwig Schultz; Bernhard Holzapfel

doi:10.1088/1367-2630/12/10/103030

Reversible shift in the superconducting transition for La1.85Sr0.15CuO4 and BaFe1.8Co0.2As2 using piezoelectric substrates

Superconductivity 2010-10-27 v1

Authors: Sascha Trommler , Ruben Hühne , Kazumasa Iida , Patrick Pahlke , Silvia Haindl , Ludwig Schultz , Bernhard Holzapfel

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Abstract

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.

Keywords

piezoelectric substrate superconducting transition strain La1.85Sr0.15CuO4 BaFe1.8Co0.2As2 epitaxial thin film

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@article{arxiv.1007.5454,
  title  = {Reversible shift in the superconducting transition for La1.85Sr0.15CuO4 and BaFe1.8Co0.2As2 using piezoelectric substrates},
  author = {Sascha Trommler and Ruben Hühne and Kazumasa Iida and Patrick Pahlke and Silvia Haindl and Ludwig Schultz and Bernhard Holzapfel},
  journal= {arXiv preprint arXiv:1007.5454},
  year   = {2010}
}

Reversible shift in the superconducting transition for La1.85Sr0.15CuO4 and BaFe1.8Co0.2As2 using piezoelectric substrates

Abstract

Keywords

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