【摘 要】
：
Y3+ doping effect on magnetic properties of Ce0.97Co0.03O2-δ are examined.Vibrating sample magnetometer (VSM) measurements indicate that Ce0.97Co0.03O2-δ is f
【机 构】
：
State Key Laboratory of Electronic Films and Integrated Devices,University of Electronic Science and
论文部分内容阅读
Y3+ doping effect on magnetic properties of Ce0.97Co0.03O2-δ are examined.Vibrating sample magnetometer (VSM) measurements indicate that Ce0.97Co0.03O2-δ is ferromagnetic at room temperature. The saturated magnetization Ms is altered by additional Y3+ doping,i.e.,with the increase of the amount of Y3+ doping concentration in Ce0.97-y YyCo0.03O2-δ (y = 0.01,0.05 and 0.10),Ms increases persistently.Raman spectra measurements indicate that additional oxygen vacancies are introduced with the amount of Y3+ doping content.The results can be well elucidated by the F-centre exchange coupling (FCE) mechanism proposed recently,thus they are important for understanding the ferromagnetism origination in transitional metal-doped insulating oxides.
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