Structure and magnetic characterization of La0.67Sr 0.33MnO3/YBa2Cu3O7 superlattices

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机构：
[1] Przyslupski, P.
[2] Komissarov, I.
[3] Paszkowicz, W.
[4] Dluzewski, P.
[5] Minikayev, R.
[6] Sawicki, M.
来源：
Przyslupski, P. (przys@ifpan.edu.pl) | 1600年 / American Institute of Physics Inc.卷 / 95期
关键词：
Diamagnetism - Heterojunctions - Magnetic field effects - Magnetometers - Multilayers - Sputtering - Superconducting materials - Superconducting transition temperature - Superlattices - Transmission electron microscopy - X ray diffraction analysis - Yttrium barium copper oxides;
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摘要：
The structural, transport and magnetic properties of La 0.67Sr0.33MnO3 (LSMO) and YBa 2Cu3O7 (YBCO) multilayers were analyzed to elucidate the influence of ferromagnetism on superconductivity. The multilayers were grown on LaAlO3 substrates by high-pressure dc sputtering. A complex strain-related magnetization anisotropy was indicated by the magnetic moment hysteresis loops. The results show that the superconducting transition temperature determined from the resistance measurement is higher than the temperature of the onset of the diamagnetic response.
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