2005/05/30 by Andreas Heinrich, Andreas L. Hoerner, Heinrich, Andreas +7
Engineering · Materials Science · Physics and Astronomy · #Acoustic Wave Resonator Technologies #Cold Atom Physics and Bose-Einstein Condensates #Electronic and Structural Properties of Oxides #FOS: Physical sciences #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/0505727
12 pages, 8 figures
arxiv created 2005/05/30 · openalex publication_date 2005/05/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.