Cation-disorder-enhanced magnetization in pulsed-laser-deposited CuFe2O4 films
نویسندگان
چکیده
Copper ferrite films have been deposited on s100d MgO substrates by pulsed-laser deposition. The oxygen pressure used in deposition was varied from 1 to 120 mTorr with the substrate temperature fixed at 700 °C. Magnetization values are measured to increase with oxygen pressure, reaching a maximum value of 2480 G, which is a 42% increase over the bulk equilibrium value. Extended x-ray absorption spectroscopy shows that the Cu cation inversion d fdefined as sCu1−dFeddfCudFe2−dgO4g decreases monotonically from 0.72 to 0.55 with increasing saturation magnetization. © 2005 American Institute of Physics. fDOI: 10.1063/1.1952571g
منابع مشابه
Magnetic and structural properties of pulsed laser deposited CuFe2O4 films
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