Optical and magnetic properties of  c  ‐oriented ZnCoO films | Zendy

Zhou Huijuan | Zendy; Knies Christoph | Zendy; Hofmann Detlev M. | Zendy; Stehr Jan | Zendy; Volbers Niklas | Zendy; Meyer Bruno K. | Zendy; Chen Limei | Zendy; Klar Peter | Zendy; Heimbrodt Wolfram | Zendy

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Optical and magnetic properties of c ‐oriented ZnCoO films

Author(s) -

Zhou Huijuan,

Knies Christoph,

Hofmann Detlev M.,

Stehr Jan,

Volbers Niklas,

Meyer Bruno K.,

Chen Limei,

Klar Peter,

Heimbrodt Wolfram

Publication year - 2006

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200669560

Subject(s) - wurtzite crystal structure , paramagnetism , materials science , phonon , thin film , crystal structure , lattice (music) , quartz , crystallography , condensed matter physics , nanotechnology , chemistry , composite material , metallurgy , zinc , physics , acoustics

We investigated ZnCoO thin films prepared via sol‐gel methods and dip‐coating techniques. The Co concentrations range from 0.5% to 5%. The films show the wurtzite crystal structure of ZnO and are highly c ‐axis oriented grown on the quartz substrates. They have a typical grain size of 20 to 50 nm and a thickness between 300 nm and 1 µm. The fine structures of the Co (3d 7 ) internal absorptions are well resolved, all zero‐phonon lines (ZPL) and phonon replica related to the 4 T 1 (F) → 4 A 2 are observed, demonstrating the good crystalline quality of the layers and the incorporation of the Co 2+ on Zn 2+ lattice sites. The films show paramagnetic behaviour. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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