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Ma C, Liu M, Collins G, Wang H, Bao S, Xu X, Enriquez E, Chen C, Lin Y, Whangbo MH.
ACS Appl Mater Interfaces. 2013 Jan 23;5(2):451-5.
Department of Physics and Astronomy, University of Texas at San Antonio, Texas 78249, USA.
Abstract
Highly epitaxial LaBaCo(2)O(5.5+{Delta}) thin films were grown on the vicinal (001) SrTiO(3) substrates with miscut angles of 0.5°, 3.0°, and 5.0° to systemically study strain effect on its physical properties. The electronic transport properties and magnetic behaviors of these films are strongly dependent on the miscut angles. With increasing the miscut angle, the transport property of the film changes from semiconducting to semimetallic, which results most probably from the locally strained domains induced by the surface step terraces. In addition, a very large magnetoresistance (34% at 60 K) was achieved for the 0.5°-miscut film, which is ~30% larger than that for the film grown on the regular (001) SrTiO(3) substrates.
