Please use this identifier to cite or link to this item:
http://localhost:8080/xmlui/handle/123456789/2084
Title: | Suppression of flux-creep in (Bi,Pb)-2212 superconductor by holmium doping |
Authors: | Vinu Sarun Shabna Aswathy Anooja Syamaprasad |
Keywords: | Superconductivity Magnetic properties |
Issue Date: | 2010 |
Publisher: | Elsevier |
Citation: | Physica B-Condensed Matter 405(20):4355-4359;15 Oct 2010 |
Abstract: | The effect of substitution of rare-earth holmium on microstructure, and electrical and magnetic properties of (Bi,Pb)-2212 superconductor has been investigated. XRD and EDAX analyses show that Ho atoms are successfully substituted into the (Bi,Pb)-2212 system and they induce significant changes in the microstructure, hole concentration, critical temperature, self- and in-field critical current density (J(C)) of the system. Flux pinning force (F(P)) calculated from the field dependent J(C) values shows that the irreversibility lines of Ho-doped (Bi,Pb)-2212 shift towards higher fields to different extents depending on the Ho stoichiometry. Also the sample with (holmium content) x=0.075 shows the maximum F(P) of 172.5 +/- 1 x 10(4) N m(-3) and the peak position of F(P) shifts to higher fields (0.76 T) as against 2.9 +/- 1 x 10(4) N m(-3) and 0.12 T at 64K for the pure sample. Enhancements in the in-field J(C), irreversibility field and F(P) due to holmium doping are of great scientific and technological significance |
URI: | http://ir.niist.res.in:8080/jspui/handle/123456789/2084 |
ISSN: | 0921-4526 |
Appears in Collections: | 2010 |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2010_0130.pdf Restricted Access | 654.65 kB | Adobe PDF | View/Open Request a copy |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.