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Structural and magnetic properties of Mn-doped anatase TiO2 films synthesized by atomic layer deposition

Structural and magnetic properties of Mn-doped anatase TiO2 films synthesized by atomic layer... Mn-doped anatase TiO2 (Mn: 1.2, 2.4 at%) thin films were grown on Si(100) via atomic layer deposition (ALD). The synthesis utilized Ti(OCH(CH3)2)4 and H2O as ALD precursors and Mn(DPM)3 as a dopant source. X-ray photoelectron spectroscopy measurements indicate that Mn is successfully doped in the TiO2 matrix and reveal information about film composition and elemental chemical states. Microstructure, crystallinity, and density were investigated with scanning electron microscopy, X-ray diffraction, and X-ray reflectivity. All ALD-synthesized films exhibited room-temperature ferromagnetism; the microstructure, density, and magnetic field-dependent magnetization of the TiO2 varied with the concentration of Mn. ALD permits precise composition and thickness control, and much higher process throughput compared to alternative techniques. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Physics A: Materials Science Processing Springer Journals

Structural and magnetic properties of Mn-doped anatase TiO2 films synthesized by atomic layer deposition

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References (21)

Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Physics; Characterization and Evaluation of Materials; Condensed Matter Physics; Surfaces and Interfaces, Thin Films; Operating Procedures, Materials Treatment; Nanotechnology; Optical and Electronic Materials
ISSN
0947-8396
eISSN
1432-0630
DOI
10.1007/s00339-011-6308-1
Publisher site
See Article on Publisher Site

Abstract

Mn-doped anatase TiO2 (Mn: 1.2, 2.4 at%) thin films were grown on Si(100) via atomic layer deposition (ALD). The synthesis utilized Ti(OCH(CH3)2)4 and H2O as ALD precursors and Mn(DPM)3 as a dopant source. X-ray photoelectron spectroscopy measurements indicate that Mn is successfully doped in the TiO2 matrix and reveal information about film composition and elemental chemical states. Microstructure, crystallinity, and density were investigated with scanning electron microscopy, X-ray diffraction, and X-ray reflectivity. All ALD-synthesized films exhibited room-temperature ferromagnetism; the microstructure, density, and magnetic field-dependent magnetization of the TiO2 varied with the concentration of Mn. ALD permits precise composition and thickness control, and much higher process throughput compared to alternative techniques.

Journal

Applied Physics A: Materials Science ProcessingSpringer Journals

Published: Feb 1, 2011

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