COMPARISON OF VARIOUS METHODS TO DETERMINE EXPERIMENTALLY THE IRREVERSIBILITY LINE IN SUPERCONDUCTORS

被引：8

作者：

RAMAKRISHNAN, S

KUMAR, R

PAULOSE, PL

GROVER, AK

CHADDAH, P

机构：

[1] PUNJAB UNIV, DEPT PHYS, CHANDIGARH 160014, INDIA

[2] BHABHA ATOM RES CTR, DIV SOLID STATE PHYS, BOMBAY 400085, INDIA

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.44.9514

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An attempt has been made to determine the irreversibility temperatures [T(r)(H)] via the merger of zero-field-cooled and field-cooled magnetizations, via the vanishing of the isothermal hysteresis, and via the appearance of the differential paramagnetic effect in specimens of lead and niobium. The first method appears to define a lower limit on T(r)(H) and does not necessarily indicate a true thermodynamic region near T(c)(H). The differential paramagnetic effect, however, is a qualitative feature whose presence is sufficient to imply reversibility.

引用

页码：9514 / 9518

页数：5

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