Regensburg 2007 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 21: Solids at Low Temperature - Poster Session

TT 21.12: Poster

Wednesday, March 28, 2007, 14:00–17:45, Poster A

Spectroscopic and thermodynamic characterization of epitaxially grown La_1−xCa_xMnO₃ films — Alexander Hirsch¹, Dirk Menzel², Ana Maria Racu², •Patric Scheib², Stefan Weber², Peter Lemmens², Joachim Schoenes², Wolfram Brenig³, and Meinhard Schilling¹ — ¹Institut für Elektrische Messtechnik und Grundlagen der Elektrotechnik, TU Braunschweig, Braunschweig — ²Institut für Physik der kondensierten Materie, TU Braunschweig, Braunschweig — ³Institut für Theoretische Physik, TU Braunschweig, Braunschweig

La_1−xCa_xMnO₃ (LCMO) thin films with different calcium concentrations are grown using Pulsed Laser Deposition (PLD). These films are characterised by optical spectroscopy, Raman scattering as well as SQUID measurements. Annealing studies demonstrate the interplay of oxygen nonstoichiometry and lattice mismatch on the substrate.