镍基铋化物GdONiBi和空穴掺杂的Gd0 0.9 Sr0.1 ONiBi的超导电性（英文）

山东大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (1): 106-109.doi:

镍基铋化物GdONiBi和空穴掺杂的Gd0 _0.9 Sr_0.1 ONiBi的超导电性（英文）

葛军饴¹,秦晓玲^1,曹世勋¹,袁淑娟^1,2,张金仓¹

1. 上海大学物理系, 上海 200444; 2. 南京大学固体微结构实验室, 南京 210093

收稿日期:2008-12-08 修回日期:1900-01-01 出版日期:2009-02-16 发布日期:2009-02-16
通讯作者: 葛军饴

Superconductivity in nickelbased bismuthide GdONiBi and hole doped Gd0 _0.9 Sr_0.1 ONiBi

GE Junyi¹, QIN Xiaoling¹, CAO Shixun¹， YUAN Shujuan^1,2, ZHANG Jincang¹

1. Department of Physics, Shanghai University, Shanghai 200444, China;
2. Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China

Received:2008-12-08 Revised:1900-01-01 Online:2009-02-16 Published:2009-02-16
Contact: GE Junyi

摘要/Abstract

摘要：

摘要：制备了镍基化合物GdONiBi,并且得到其超导转变温度为45K.通过用Sr元素部分的替代Gd元素向该物质中引入空穴,得到了一种新的超导体Gd0-9Ni0-1其转变温度为47K.两种镍基化合物超导体正常金属态的电阻率均显示出金属行为.通过对其磁电阻效应的研究发现其磁电阻效应显示出与铁基超导体不同的行为,表明两者之间的超导机制可能存在差异.

关键词: 关键词:镍基铋化物; 空穴掺杂; 磁电阻;多带效应

Abstract:

Abstract: The nickelbased compound GdONiBi was successfully synthesized with superconducting transition temperature about 45 K. By partially substituting the element Gd with Sr to introduce holes into the material, a new superconductor Gd09Sr01ONiBi was obtained with critical temperature about 47 K. The normal state resistivity in nickelbased samples shows a metallic behavior. The magnetoresistance measurements show a different behavior compared to those in ironbased compounds which may indicate that the mechanism in the two kinds of superconductors maybe different.

Key words: Key words: nickelbased bismuthide; hole doped; magnetoresistance; multiband effect

中图分类号:

葛军饴1 ,秦晓玲1, 曹世勋1 ,袁淑娟1,2 ,张金仓1 . 镍基铋化物GdONiBi和空穴掺杂的Gd0 _0.9 Sr_0.1 ONiBi的超导电性（英文）[J]. 山东大学学报(工学版), 2009, 39(1): 106-109.

GE Junyi¹, QIN Xiaoling¹, CAO Shixun¹， YUAN Shujuan^1,2, ZHANG Jincang¹
. Superconductivity in nickelbased bismuthide GdONiBi and hole doped Gd0 _0.9 Sr_0.1 ONiBi[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(1): 106-109.

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