期刊
NANO LETTERS
卷 9, 期 9, 页码 3196-3202出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl901431t
关键词
-
类别
资金
- NSF [DMR-0820404, 0335765]
- Pennsylvania State University Materials Research Institute Nano Fabrication Network
While bulk bismuth (Bi) is a semimetal, we have found clear evidence of superconductivity in 72 nm diameter crystalline Bi nanowire below 1.3 K. In a parallel magnetic field (H), the residual resistance of the nanowire below T-c displays periodic oscillations with H, and the period corresponds to a superconducting flux quantum. This result indicates that the superconductivity originates from the cylindrical shell between Bi inner core and the surface oxide layer. Under a perpendicular H, the resistance in the superconducting state shows Shubnikov-de Haas (SdH)-like oscillations, a signature of a normal metal. These results suggest a novel coexistence of superconducting and metallic states in the temperatures well below T-c,
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据