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Ilisavskii Y, Goltsev A, Dyakonov K, et al. Anomalous acoustoelectric effect in La0.67Ca0.33MnO3 films. Phys Rev Lett. 2001;87(14):146602doi: 10.1103/PhysRevLett.87.146602.
Ilisavskii, Y., Goltsev, A., Dyakonov, K., Popov, V., Yakhkind, E., Dyakonov, V. P., Gierlowski, P., Klimov, A., Lewandowski, S. J., & Szymczak, H. (2001). Anomalous acoustoelectric effect in La0.67Ca0.33MnO3 films. Physical review letters, 87(14), 146602. https://doi.org/10.1103/PhysRevLett.87.146602
Ilisavskii, Y, et al. "Anomalous acoustoelectric effect in La0.67Ca0.33MnO3 films." Physical review letters vol. 87,14 (2001): 146602. doi: https://doi.org/10.1103/PhysRevLett.87.146602
Ilisavskii Y, Goltsev A, Dyakonov K, Popov V, Yakhkind E, Dyakonov VP, Gierlowski P, Klimov A, Lewandowski SJ, Szymczak H. Anomalous acoustoelectric effect in La0.67Ca0.33MnO3 films. Phys Rev Lett. 2001 Oct 01;87(14):146602. doi: 10.1103/PhysRevLett.87.146602. Epub 2001 Sep 17. PMID: 11580665.
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Phys Rev Lett. 2001 Oct 01;87(14):146602. doi: 10.1103/PhysRevLett.87.146602. Epub 2001 Sep 17.

Anomalous acoustoelectric effect in La0.67Ca0.33MnO3 films.

Physical review letters

Y Ilisavskii, A Goltsev, K Dyakonov, V Popov, E Yakhkind, V P Dyakonov, P Gierlowski, A Klimov, S J Lewandowski, H Szymczak

Affiliations

  1. A. F. Ioffe Physical-Technical Institute, Politekhnicheskaja 26, St. Petersburg 194021, Russia.

PMID: 11580665 DOI: 10.1103/PhysRevLett.87.146602

Abstract

We have studied the acoustoelectric (AE) effect produced by surface acoustic waves (SAW) in a monolithic layered structure, composed of a piezodielectric LiNbO3 substrate and a La0.67Ca0.33MnO3 film. The experiments unexpectedly revealed in the longitudinal AE effect an anomalous contribution, invariant upon reversal of SAW propagation, which coexists with the ordinary (odd in wave vector) effect. The anomalous effect dominates near the metal-insulator transition, while the ordinary effect prevails at high and low temperatures. We show that the anomalous effect is caused by strong modulation of the film conductivity produced by the SAW elastic deformations.

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