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- Keywords NTC thermistors;thin-film;transition metal oxides;small polaron hopping; NTC热敏电阻;薄膜;过渡金属氧化物;小极化子跃迁;
- Adiabatic small polaron hopping 小极化子绝热跃迁
- small polaron hopping 小极化子
- The two transport properties of small polaron in PM phase and single magneton in FM phase coexist at the temperature rang of phase transition. 在相变温区是顺磁相的小极化子与铁磁相的单磁子2种输运性质共存。
- Arrhenius plot of PO_2--independent conductivity gave the activation energy of 0.16eV for MgFe_2O_4. It shows the conduction mechanism was thermally activated hopping of small polarons. 以不依赖氧分压变化的电导率对数对温度的倒数作图;求得镁铁氧体(MgFe_2O_4)的激活能为0.;16eV;由此推断了它的电导机理为跳跃式电导模型。
- Keywords colossal magnetoresistance;small polaron;double exchange;variable-range hopping;magnetocaloric effect; 超大磁电阻效应;极化子;双交换作用;变程跳跃;磁热效应;
- The experimental evidences show that both actions of double exchange interaction and small polarons are responsible for the variation of the CMR effect. 实验结果表明,是双交换作用和小极化子效应的共同作用决定了CMR效应的特性。
- Keywords s: iron oxide;strontium oxide;tellurium oxide;semiconductive glasses;transition metal oxide;dc conductivity;glass formation region;samll polaron hopping; 氧化铁;氧化锶;氧化碲;半导体玻璃;过渡金属氧化物;直流电导率;玻璃形成范围;小极化子跳越理论;
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤,碰着了头。
- A small adjustment will equalize the temperature in the two rooms. 稍作些调节就会使两间房内的温度相等。
- It's a tight squeeze to get five people in that small car. 五个人坐在那个小车子里真是太挤了。
- There are two transition points in the resistant-temperature curve of the La_(0.7)Ca_(0.3)MnO)3 film fabricated by sol-gel method, and it is the result of the interaction between double exchange and small polarons that play a important role in CMR films. 在溶胶-凝胶法制备的La_(0.;7)Ca_(0
- A ragged shout went up from the small crowd. 这一小群人发出了刺耳的喊叫。
- I hit on the book in a small book shop. 我在一家小书店里偶然发现了这本书。
- The penalty clause was hidden in the small print. 惩罚条款印在不起眼的小号字体部分。
- Small shop is crowded out by the big supermarket. 小商店受到大型超级市场不断排挤。
- A small party of men were told off for burial duty. 一小组人被分派去执行掩埋的任务。
- The man is carrying a small black plastic handbag. 这个人提着一个黑色的小塑料提袋。
- Don't get into such a bother about small matters. 不要为了区区小事而如此焦虑。
- The shop expect to make a small profit this year. 这家店铺期望今年能赚点钱。