Spin-Dependent Electroresistance Behaviour of Nd0.67Sr0.33MnO3-δ(0≤δ≤0.20)
来源期刊：JOURNAL OF RARE EARTHS2007年增刊第1期
论文作者：Deng Heng Zhou Zhihui Yang Fujun Yang Changping
Key words：manganites; spin-dependent transport; electroesistance; rare earths;
Abstract: Oxygen deficient Nd0.67Sr0.33MnO3-δ ceramic samples were prepared using conventional ceramic technology. A colossal electroresistance (CER) effect was found in Nd0.67Sr0.33MnO3-δ series. The electrical transport is magnetically coupled and spin-dependent over grain or phase boundaries. Electrical-field-induced changes of the spin array orientations inside of and between the magnetic domains by grain or phase boundaries have to be concluded for the strong electroresistive effect in Nd0.67Sr0.33MnO3-δ series.
Deng Heng1，Zhou Zhihui1，Yang Fujun1，Yang Changping1
(1.Provincial Key Laboratory of Piezoelectric Ceramics Materials and Apparatus, Faculty of Physics & Electronic Technology, Hubei University, Wuhan 430062, China)
Abstract:Oxygen deficient Nd0.67Sr0.33MnO3-δ ceramic samples were prepared using conventional ceramic technology. A colossal electroresistance (CER) effect was found in Nd0.67Sr0.33MnO3-δ series. The electrical transport is magnetically coupled and spin-dependent over grain or phase boundaries. Electrical-field-induced changes of the spin array orientations inside of and between the magnetic domains by grain or phase boundaries have to be concluded for the strong electroresistive effect in Nd0.67Sr0.33MnO3-δ series.
Key words:manganites; spin-dependent transport; electroesistance; rare earths;
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