【摘 要】
：
Tin oxide (SnO2) is an n-type semiconductor with a wide band gap of 3.6 eV,which has a rutile structure.Ogale etal.[1] found that Co-doped SnO2 films not only e
【机 构】
：
School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology,X
论文部分内容阅读
Tin oxide (SnO2) is an n-type semiconductor with a wide band gap of 3.6 eV,which has a rutile structure.Ogale etal.[1] found that Co-doped SnO2 films not only exhibit ferromagnetism above room temperature but also shows a giant magnetic moment (7.5 ± 0.5μB/Co).It is assumed that the point defects in a SnO2 matrix may introduce extra magnetic moments,which could contribute to the total Co magnetic moment.The occurrence of such a large magnetic moment has attracted significant interest to studies of transition-metal (TM) doped SnO2.Recently,Nomura et al.[2] illustrated that the defects,rather than the Fe ions,were the main origin of ferromagnetism in Fe-doped SnO2 powders.Very recently,unexpected room-temperature ferromagnetism has been observed in pure SnO2 films,[3]nanocrystals,[4] and nanowires.
其他文献
The growth and scintillation properties of La0.97(Cl0.05Br0.95)3∶Ce0.03 crystals are reported.A 1-inch-diameter as-grown crystal is achieved by applying the ve
介绍了安全心理学的内容、研究对象及在煤矿安全教育中作用.阐述了安全教育中应注意安全心理所起到的作用.
The phase field,which originates from the electronic interaction,plays an important role in describing a strongly correlated system in one dimension.However,in
Cuprous iodide (CuI) has attracted much attention in the field of radiation detection due to its ultra-fast scintillation property with a decay time about 90 ps
For interpreting the production mechanism of surface-wave plasmas sustained aiong a metal rod,electromagnetic simulation on the electromagnetic field distributi
We describe the cw and Q-switched actions of a novel erbium-doped crystal Er∶Lu2SiO5 pumped by a MgO∶PPLNOPO at 1536nm.An efficient 1580.9nm cw laser with the
In last few years using short wavelength light to trap[1] and to manipulate atom is playing a more and more important role in cold-atom physics,including scient