Effect Of Hydrogen Loading On Superconducting Properties of Niobium

被引：2

作者：

Chandra, Jagdish ^{[1
]}

Manekar, M. A. ^{[1
]}

机构：

[1] Raja Ramanna Ctr Adv Technol, FEL & Utilizat Sect, FEL Utilizat Lab, Indore 452013, MP, India

来源：

DAE SOLID STATE PHYSICS SYMPOSIUM 2018 | 2019年 / 2115卷

关键词：

INSTABILITIES; DISORDER;

D O I：

10.1063/1.5113346

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Hydrogen is known to get trapped strongly in metals at their existing defect sites. The flux pinning properties in the superconducting state of a material depend mainly on the underlying defect structure. In this work we study the changes in superconducting properties of niobium as a result of hydrogen loading by performing magnetization measurements. We find that the transition temperature (T-C) and lower critical field (H-C1) reduce by about 25% and 50% respectively as a result of introducing hydrogen in pure niobium. We observe a peak effect in isothermal magnetization measurements in the hydrogen loaded sample. Applicability of weak collective pinning mechanism to explain this peak effect is considered.

引用

页数：4

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