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《材料导报》期刊社  2018, Vol. 32 Issue (12): 2043-2046    https://doi.org/10.11896/j.issn.1005-023X.2018.12.019
  材料研究 |
过渡金属铋化物BaAg2-δBi2单晶的制备和物理性质
傅瑜,何俊宝,张萍,冷玉敏,马奔原,李纪燕
南阳师范学院物理与电子工程学院,南阳 473061
Single Crystal Growth and Physical Properties of Layered Transitional Metal Bismuthide BaAg2-δBi2
FU Yu, HE Junbao, ZHANG Ping, LENG Yumin, MA Benyuan, LI Jiyan
College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061
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摘要 采用自助熔方法制备了高质量的层状过渡金属铋化物BaAg2-δBi2单晶样品,通过多种实验手段综合研究了该单晶样品的晶体结构、化学成分、电学和磁学性质。结果表明:化合物BaAg2-δBi2是一种层状过渡金属化合物,具有AgBi4和BiAg4四面体层,这与铁基超导体中只有FeAs4/FeSe4四面体层明显不同。电阻率和磁化率随温度变化的曲线显示,在1.8~300 K温度区间BaAg2-δBi2表现出很好的金属性和顺磁性,其顺磁性主要来源于传导电子的贡献。    
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傅瑜
何俊宝
张萍
冷玉敏
马奔原
李纪燕
关键词:  层状过渡金属化合物  单晶制备  物理性质    
Abstract: High quality single crystal sample of layered transitional metal bismuthide BaAg2-δBi2 was prepared by self-fluxing method. The crystal structure,chemical composition,electrical and magnetic properties of high quality single crystal sample were systematically studied by many kinds of experimental methods. The experiment results indicate that the compound BaAg2-δBi2 is a layered transitional metal compounds with AgBi4 and BiAg4 tetrahedral layers, which is different from that there is only one kind of FeAs4/FeSe4 tetrahedral layers in iron-based superconductor. The variation of resistivity and magnetic susceptibility as a function of temperature shows that BaAg2-δBi2 presents a good metal behavior and paramagnetism in the temperature ranges of 1.8 — 300 K,and the paramagnetism mainly originate from conduction electrons.
Key words:  layered transitional metal compounds    single crystal growth    physical properties
               出版日期:  2018-06-25      发布日期:  2018-07-20
ZTFLH:  O441.6  
基金资助: 国家自然科学基金(11404175;21607083);南阳师范学院青年项目(QN2016009);南阳师范学院SPCP项目(494);河南省先进材料设计与开发创新团队(C20150029);河南省科技厅重点项目(162102210305);河南省教育厅项目(15A140030)
作者简介:  傅瑜:女,1983年生,硕士,助理实验师,主要研究方向为新型量子功能材料的单晶制备 E-mail:nysyfuyu@nynu.edu.cn 何俊宝:通信作者,男,1983年生,博士,讲师,主要研究方向为新型量子功能材料的物理性质研究 E-mail:hejunbao@nynu.edu.cn
引用本文:    
傅瑜,何俊宝,张萍,冷玉敏,马奔原,李纪燕. 过渡金属铋化物BaAg2-δBi2单晶的制备和物理性质[J]. 《材料导报》期刊社, 2018, 32(12): 2043-2046.
FU Yu, HE Junbao, ZHANG Ping, LENG Yumin, MA Benyuan, LI Jiyan. Single Crystal Growth and Physical Properties of Layered Transitional Metal Bismuthide BaAg2-δBi2. Materials Reports, 2018, 32(12): 2043-2046.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.12.019  或          http://www.mater-rep.com/CN/Y2018/V32/I12/2043
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