Abstract
The temperature and magnetic field dependence of angular dependent magnetoresistance (AMR) along two orthogonal directions ([100] and [01̄1]) was investigated in a charge-orbital-ordered Sm0.5Ca0.5 MnO3 (SCMO) film grown on (011)-oriented SrTiO3 substrates. A dramatic decrease of AMR magnitude in both directions was observed with the appearance of magnetic-field-induced metal-insulator transition, which further led to a sign crossover in the AMR effect. The AMR crossover may give a direct evidence of the drastic modification of electronic structure or possible orbital reconstruction with the magnetic-destruction of charge/orbital ordering in SCMO films. © 2009 American Institute of Physics.
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CITATION STYLE
Chen, Y. Z., Sun, J. R., Zhao, T. Y., Wang, J., Wang, Z. H., Shen, B. G., & Pryds, N. (2009). Crossover of angular dependent magnetoresistance with the metal-insulator transition in colossal magnetoresistive manganite films. Applied Physics Letters, 95(13). https://doi.org/10.1063/1.3240407
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