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Structural, magnetic and electrical properties in the pyrochlore oxide Bi2-xCaxIr2O7-delta

文献类型：期刊论文

作者Liang, Dandan1,3,4; Liu, Hui2; Liu, Ning1; Ling, Langsheng3,4; Han, Yuyan3,4; Zhang, Lei3,4; Zhang, Changjin3,4
刊名CERAMICS INTERNATIONAL
出版日期2016-02-15
卷号42期号:3页码:4562-4566
关键词Magnetic Properties Transition Metal Oxides Metal Insulator Transition
DOI10.1016/j.ceramint.2015.11.149
文献子类Article
英文摘要Bi2-xCaxIr2O7-delta (x=0, 0.1, 0.2, 0.3, and 0.4) pyrochlore iridates were prepared by the solid-state reaction method in air. In this paper we reported a systematic study of hole-doped Bi2-xCaxIr2O7-delta by performing crystal structure, electrical transport and magnetic measurements. A high-crystallized Bi2-xCaxIr2O7-delta with a cubic structure was obtained. Because Bi3+ was substituted in a random way by Ca2+ which has relatively smaller ionic radius, disorder and phononic oscillations were induced and the the length of Ir-O bands were reduced. The doped samples were found to exhibit metal insulator transition. Magnetic measurements on the doping samples indicated a shift towards nonmagnetic Ir5+, and the anti-ferromagnetism was weakened. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
WOS关键词SOLID-SOLUTION ; BI2-YSRYIR2O7
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000369190900101
资助机构Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Nature Science Foundation of China(11174290 ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; Anhui Provincial Natural Science Foundation(1308085MA11) ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1232142 ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140) ; U1332140)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22265]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Anhui Polytech Univ, Coll Mech & Automot Engn, Wuhu 241000, Peoples R China
2.Hefei Univ, Dept Math & Phys, Hefei 230601, Peoples R China
3.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
4.Univ Sci & Technol China, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Liang, Dandan,Liu, Hui,Liu, Ning,et al. Structural, magnetic and electrical properties in the pyrochlore oxide Bi2-xCaxIr2O7-delta[J]. CERAMICS INTERNATIONAL,2016,42(3):4562-4566.
APA Liang, Dandan.,Liu, Hui.,Liu, Ning.,Ling, Langsheng.,Han, Yuyan.,...&Zhang, Changjin.(2016).Structural, magnetic and electrical properties in the pyrochlore oxide Bi2-xCaxIr2O7-delta.CERAMICS INTERNATIONAL,42(3),4562-4566.
MLA Liang, Dandan,et al."Structural, magnetic and electrical properties in the pyrochlore oxide Bi2-xCaxIr2O7-delta".CERAMICS INTERNATIONAL 42.3(2016):4562-4566.

入库方式： OAI收割

来源：合肥物质科学研究院

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