Role of strain in magnetotransport properties of Pr0.67Sr0.33MnO3 thin films

H. S. Wang, E. Wertz, Y. F. Hu, Qi Li, D. G. Schlom

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95 Scopus citations


We have studied the strain effects on the structural and magnetotransport properties of Pr0.67Sr0.33MnO3 (PSMO) thin films. The PSMO films were epitaxially grown on LaAlO3 (001), SrTiO3 (001), and NdGaO3 (110) substrates that induce biaxial compressive, tensile, and almost no strain in the films, respectively. The film thickness t, varied between 4-400 nm, was used as another controlling parameter of strain for each type of film. There exist two distinct thickness ranges with different thickness dependence of the magnetotransport properties. For t<20 nm, the zero-field resistance peak temperature (Tp) and the high-field magnetoresistance (HFMR) properties are critically dependent on the thickness and the substrate. For t>20 nm, the Tp and the HFMR ratio show weak t dependence. The results show evidence for the effects of the Jahn-Teller type distortion as well as disorders on the resistive transition temperature and the HFMR.

Original languageEnglish (US)
Pages (from-to)7409-7414
Number of pages6
JournalJournal of Applied Physics
Issue number10
StatePublished - May 15 2000

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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