期刊
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
卷 41, 期 2, 页码 -出版社
A V S AMER INST PHYSICS
DOI: 10.1116/6.0002273
关键词
-
We grew alpha-Sn films on two different substrates with different sample structures using molecular beam epitaxy. The presence of a mixture of alpha and beta phases in the Sn film was confirmed. Multiple superconducting transitions were observed in these alpha-Sn/beta-Sn mixed films, with enhanced critical temperatures, critical fields, and shorter coherence lengths compared to bulk beta-Sn. Angle-dependent measurements demonstrated the two-dimensional nature, and magnetization measurements indicated a type-II superconductor. The multiple superconducting transitions were attributed to the beta-Sn islands formed within the film.
We have tried to grow alpha-Sn films on two different substrates with different sample structures by molecular beam epitaxy. The mixture of an alpha phase with a beta phase in the Sn film has been confirmed. The electrical transport properties have been measured and multiple superconducting transitions have been observed in these alpha-Sn/beta-Sn mixed films. Enhanced critical temperatures and critical fields as well as shorter coherence lengths are observed, as compared to bulk beta-Sn. The two-dimensional nature is demonstrated by angle-dependent measurements and a type-II superconductor is indicated by the magnetization measurements. We attribute the multiple superconducting transitions to the beta-Sn islands formed within the film.
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