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Tip-enhanced superconductivity in titanium

delete2025-12-21
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OA
AI
M
Mohd Monish
N
Nikhlesh Mehta
G
Ghulam Mohmad
G
Goutam Sheet *
DOI:10.1063/5.0298559delete
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摘要

摘要

En 中文
我们报道了通过介观点接触形成,使用简单的针-砧技术使元素钛的超导转变温度(T-c)得到显著提升。尽管块材钛在常温常压下表现出T-c约为0.4 K,但我们的点接触测量揭示了一个局部诱导的超导相,其T c值高达3.5 K,与在约56 GPa静水压力下达到的值相当。该提升高度依赖于接触条件,表明其具有局部起源,可能与尖端诱导的轴向应变改变接触下方晶体和电子结构有关。电阻-温度特性和微分电导谱随温度及磁场的变化给出了与常规超导电性一致的H-T相图。我们的结果表明,在不采用极端压力技术的情况下,存在一种低成本、桌面式的方法来稳定具有较高T-c的超导相于元素金属中。
Keyword:
MESOSCOPIC SUPERCONDUCTIVITY
PHASE
TEMPERATURE
METALS

期刊

Journal of Applied Physics 封面图
Journal of Applied Physics
IF:
2.5
论文数:
2.6K
被引数:
14.5W

机构

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