Berlin 2012 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 37: Poster II: Focused electron beam induced processing for the fabrication of nanostructures (focused session, jointly with O); Nanoengineered thin films; Layer properties: electrical, optical, and mechanical properties; Thin film characterization: structure analysis and composition (XRD, TEM, XPS, SIMS, RBS,..); Application of thin films
DS 37.9: Poster
Donnerstag, 29. März 2012, 15:00–17:00, Poster E
Single-crystalline CaMoO3 and SrMoO3 films grown by Pulsed Laser Deposition in a reductive atmosphere — •Aldin Radetinac1, Kei S. Takahashi2, Lambert Alff1, Masashi Kawasaki2,3, and Yoshinori Tokura2,4 — 1Inst. für Materialwissenschaften, TU Darmstadt, Petersenstraße 23, 64287 Darmstadt, Germany — 2Cross-correlated Materials Research Group (CMRG), RIKEN, Wako, Saitama 351-0198, Japan — 3Inst. for Materials Research, Tohoku University, Sendai 980-8577, Japan — 4Dep. of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
Single-crystalline thin films of CaMoO3 and SrMoO3 with a Mo4+ state perovskite structure have been epitaxially grown by pulsed-laser deposition from Mo6+ state ceramic targets [1]. Phase-pure films were obtained on nearly lattice-matched perovskite substrates using argon gas flow during the deposition. Transport properties of the films are consistent with those of paramagnetic and metallic phases, whereas the residual resistivities are far lower than those reported previously for films and bulk polycrystals. These results indicate that this growth method can be useful for exploring the interfaces and junction properties of 4d and 5d transition metal oxides that are unstable in a conventional oxidative atmosphere. This study was partly supported by the Japan Society for the Promotion of Science (JSPS) through its FIRST Program.
[1] A. Radetinac, K. S. Takahashi, L. Alff, M. Kawasaki and Y. Tokura, Appl Phys Express 3 (7) (2010)