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万方数据

低温物理学报 저온물이학보
CHINESE JOURNAL OF LOW TEMPERATURE PHYSICS
2007年 4期 263-269 ,共7页

林颖%魏伟%熊锐%胡妮%汪丽莉%余祖兴%汤五丰%石兢

림영%위위%웅예%호니%왕려리%여조흥%탕오봉%석긍

强关联%Sr14Cu24O41%自旋梯状结构%电输运彊關聯%Sr14Cu24O41%自鏇梯狀結構%電輸運
강관련%Sr14Cu24O41%자선제상결구%전수운

采用固相反应法制备了系列Sr14(Cu1-xCox)24O41(x=0,0.02,0.06,0.1,0.14,0.18)的样品,X-射线衍射结果显示所有样品均为单相,且Co的掺杂几乎不改变样品的晶格常数,电子衍射和X-射线光电子能谱的测量结果证实Co替代的是链上的Cu原子;电输运的测量显示,Co掺杂样品表现为半导体行为,且渡越温度T 随掺杂量的增加逐渐减小.
채용고상반응법제비료계렬Sr14(Cu1-xCox)24O41(x=0,0.02,0.06,0.1,0.14,0.18)적양품,X-사선연사결과현시소유양품균위단상,차Co적참잡궤호불개변양품적정격상수,전자연사화X-사선광전자능보적측량결과증실Co체대적시련상적Cu원자;전수운적측량현시,Co참잡양품표현위반도체행위,차도월온도T 수참잡량적증가축점감소.