STUDY OF UPPER CRITICAL-FIELD IN SUPERCONDUCTING BOROCARBIDES RNI(2)B(2)C (R=Y,HO,ER,TM)

Authors
MAZUMDAR C HOSSAIN Z RADHA S NIGAM AK NAGARAJAN R GUPTA LC GODART C PADALIA BD CHANDRA G VIJAYARAGHAVAN R
Citation
C. Mazumdar et al., STUDY OF UPPER CRITICAL-FIELD IN SUPERCONDUCTING BOROCARBIDES RNI(2)B(2)C (R=Y,HO,ER,TM), Physica. B, Condensed matter, 224(1-4), 1996, pp. 102-104
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
224
Issue
1-4
Year of publication
1996
Pages
102 - 104
Database
ISI
SICI code
0921-4526(1996)224:1-4<102:SOUCIS>2.0.ZU;2-F
Abstract
We have determined upper critical field, H-c2(T), from resistivity mea surements in the borocarbide superconductors, RNi(2)B(2)C (R=Y, Ho, Er , Tm). The H-c2(T) of these materials show a positive curvature which is unlike of a conventional type-II superconductor. Features correspon ding to coexistence of superconductivity and magnetism are observed in HoNi2B2C and ErNi2B2C. From the resistivity measurements, we observe a double reentrant behaviour in our sample of HoNi2B2C.