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- Title
Magnetic and Transport Parameters of LSMO and YBCO/LSMO Films Deposited on Sapphire Substrates.
- Authors
Blagoev, B. S.; Nurgaliev, T. K.; Štrbik, V.; Mateev, E. S.; Zaleski, A. J.
- Abstract
La0.7Sr0.3MnO3 layers and YBa2Cu3O7-δ/La0.7Sr0.3MnO3 bilayers were grown by magnetron sputtering on sapphire substrates. The temperature dependences of the resistance of single La0.7Sr0.3MnO3 films were typical for polycrystalline manganite materials. The resistance decreases with decreasing of the temperature at medium temperatures and increases at lower and higher temperatures. Deposition of a top YBa2Cu3O7-δ layer led to a drastic increase of the sample resistance. These bilayers did not demonstrate decreasing of the resistance with decrease of the temperature. Temperature dependence of the resistance of these samples was interpreted in the framework of a phenomenological model of two intergrain conduction channels. In framework of this model, parameters of the samples were determined and discussed.
- Subjects
LANTHANUM; STRONTIUM; MAGNETICS; MAGNETRON sputtering; SPUTTERING (Physics); SAPPHIRES; MANGANITE
- Publication
Bulgarian Journal of Physics, 2013, Vol 40, Issue 4, p337
- ISSN
1310-0157
- Publication type
Article