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Pulsed Laser Deposition of La0,67Ca0,33MnO3 thin films on LiNbO3

Andreas Heinrich·Andreas L. Hoerner·Achim Wixforth·Bernd Stritzker
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Abstract

Surface Acoustic Waves on piezoelectric substrates can be used to investigate the dynamic conductivity of thin films in a non-contact and very sensitive way, especially at low conductivities. Here, we report on such surface acoustic wave studies to characterize thin manganite film like La0.67Ca0.33MnO3, exhibiting a Jan Teller effect with a strong electron phonon interaction and a metal insulator transition at high temperatures. We report on the deposition of La0.67Ca0.33MnO3 on piezoelectric substrates (LiNbO3 in different crystal cuts) employing a pulsed laser deposition technique. The structural qualities of the thin films are examined by X-Ray Diffraction, Scanning Electron Microscope and Energy Dispersive X-ray spectroscopy. For the electrical characterization, we employ the surface acoustic wave technique, accompanied by conventional DC-resistance measurements for comparison.

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Andreas Heinrich, Andreas L. Hoerner, Achim Wixforth, Bernd Stritzker. 2005-05-30. Pulsed Laser Deposition of La0,67Ca0,33MnO3 thin films on LiNbO3. https://arxiv.org/abs/cond-mat/0505727

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