Can any one give me a descriptive definition of a functional oxide ?
Functional oxides have two structural characteristics: cations with mixed valence states and anions with deficiencies (vacancies). The structures of functional oxides are very diverse and varied, and there are endless new phenomena and applications. Such unique characteristics make oxides the most diverse class of materials, with properties covering almost all aspects of materials science and physics in areas such as semiconductivity, superconductivity, ferroelectricity and magnetism.
Multiple oxides can be considered as functional and multifunctional materials. Among such oxides, there is a broad diversity of structures: wurtzite, corundum, zircon, scheelite, wolframite, fluorite, spinel, garnet, perovskite, pyrochlore, bixbyite and many others.
See:
www.nanoscience.gatech.edu/paper/2003/03_AFM_1.pdf
Thank you very much professor.. That answer helped me a lot for my seminar.
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