Magnetic and transport properties of epitaxial (LaBa)Co2O5.5+δ thin films on (001) SrTiO3

Liu, M.; Liu, J.; Collins, G.; Ma, C. R.; Chen, C. L.; He, J.; Jiang, J. C.; Meletis, E. I.; Jacobson, A. J.; Zhang, Q. Y.
March 2010
Applied Physics Letters;3/29/2010, Vol. 96 Issue 13, p132106
Academic Journal
The (LaBa)Co2O5+δ thin films were grown on (001) SrTiO3 single crystal substrates by using pulsed laser deposition. Microstructure studies from x-ray diffraction and electron microscopy show that the films have good epitaxial quality with a-axis orientation and sharp atomic interface. Transport property and isothermal magnetoresistance measurements have been used to understand the physical properties of the films with anomalous magnetic phenomena and the largest reported magnetoresistance value of 19% at 40 K.


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