Modulation of superconductivity and charge stripes by compressive strain in La1.44Nd0.4Sr0.16CuO4 films

High quality c-oriented superconducting La1.44Nd0.4Sr0.16CuO4/LaSrAlO4 films have been successfully prepared by dc magnetron sputtering technique. With decreasing film thickness, the c-axis lattice constant as well as the superconducting transition temperature Tc increases monotonically and the resi...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2007-09, Vol.460-462 (2), p.1388-1389
Main Authors: ZHANG, Y. Q, QU, J. F, XIANG, X. Q, LU, X. L, LI, X. G
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
High-tc films
Physics
Superconducting films and low-dimensional structures
Superconductivity
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Summary:High quality c-oriented superconducting La1.44Nd0.4Sr0.16CuO4/LaSrAlO4 films have been successfully prepared by dc magnetron sputtering technique. With decreasing film thickness, the c-axis lattice constant as well as the superconducting transition temperature Tc increases monotonically and the resistivity upturn is gradually suppressed. The results suggest that the in-plane compressive strain can be well controlled by tuning the film thickness and thus modulate the charge stripe order and superconductivity in the system.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2007.04.030