Strain-dependent spin dynamics in Nd 0.67Sr 0.33MnO 3 near the metal-insulator transition

Y. H. Ren, H. B. Zhao, G. Lüpke, Y. F. Hu, Qi Li

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Abstract

We report on time-resolved pump-probe measurements of spin-dependent dynamics in strained Nd 0.67Sr 0.33MnO 3 thin films grown on three different substrates: LaAlO 3 (001), SrTiO 3 (001), and NdGaO 3 (110). The temperature dependence of the long-lived spin-relaxation component is represented well by a power-law decay of long-range correlations, clearly showing the transition from quasilong-range ferromagnetic order to a disordered paramagnetic phase. The "disordering" temperature, T M, where the intermediate phase of quasilong-range order appears, varies according to the creation of static-distortion waves under different strain forces.

Original languageEnglish (US)
Pages (from-to)7514-7516
Number of pages3
JournalJournal of Applied Physics
Volume91
Issue number10 I
DOIs
StatePublished - May 15 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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