M. Venkatesan, P. Stamenov, L. S. Dorneles, R. D. Gunning and J. M. D. Coey 'Magnetic, magnetotransport, and optical properties of Al-doped Zn0.95Co0.05O thin films' in Applied Physics Letters, 90, (24), 2007, 242508
Applied Physics Letters 90 24
Thin films of 5% Co-doped ZnO with a range of Al codoping exhibit a band-edge shift, which varies with carrier concentration as n2/3. Carrier effective mass is 0.26me and mobility is ∼ 10 cm2 V−1 s−1. The doped films, which contain coherent Co clusters of 4–8 nm in size, exhibit a ferromagnetic moment of 0.3–1.0μB per cobalt. The magnetism is progressively destroyed by Al doping due to a reduction in Co-cluster formation. Magnetoresistance appears below 30 K, but these materials cannot be regarded as dilute magnetic semiconductors.
Please note: There is a known bug in some browsers that causes an
error when a user tries to view large pdf file within the browser window.
If you receive the message "The file is damaged and could not be
repaired", please try one of the solutions linked below based on the
browser you are using.
Items in TARA are protected by copyright, with all rights reserved, unless otherwise indicated.