Abstract
We report on the magnetic and transport properties of the antiperovskite GaCMn3 film epitaxially grown on LaAlO3 using the pulsed laser deposition technique. Upon cooling from room temperature, the GaCMn3 film undergoes magnetic transitions from paramagnetic to ferromagnetic to antiferromagnetic. The Curie and Neél temperatures of the film shift to lower and higher temperatures, respectively, by comparison with those of the bulk sample. This discrepancy is mainly ascribed to the compressive strain effect induced by the lattice-mismatch between film and substrate. Negative magnetoresistance, which is about 20% at 0.5 T, is observed near the Neél temperature.
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Choi, H.S., Kim, W.S., Kim, J.C. et al. Epitaxial growth of antiperovskite GaCMn3 film on perovskite LaAlO3 substrate. Journal of Materials Research 17, 2640–2643 (2002). https://doi.org/10.1557/JMR.2002.0383
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DOI: https://doi.org/10.1557/JMR.2002.0383