scholarly journals Charged Particle Irradiation Studies on Bismuth Based High Temperature Superconductors and MgB2: a comparative study

10.5772/10123 ◽  
2010 ◽  
Author(s):  
Sujit Kumar
1994 ◽  
Vol 235-240 ◽  
pp. 2737-2738 ◽  
Author(s):  
D. Berling ◽  
D. Bolmont ◽  
A. Mehdaoui ◽  
B. Loegel

Cryogenics ◽  
1989 ◽  
Vol 29 (3) ◽  
pp. 350-354 ◽  
Author(s):  
X. Granados ◽  
M. Carrera ◽  
X. Obradors ◽  
N. Ferrer ◽  
J. Fontcuberta ◽  
...  

MRS Advances ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 119-124 ◽  
Author(s):  
Prashanta Mani Niraula ◽  
Eiman Bokari ◽  
Shahid Iqbal ◽  
Lisa Paulius ◽  
Matthew Smylie ◽  
...  

AbstractWe use irradiation with 50-MeV Cu-ions to create vortex pinning defects in high-temperature superconducting Y1Ba2Cu3O7-x coated conductors using a beam-rastering approach that allows for the uniform irradiation of large ample areas. Our samples contain barium zirconate nanorods as pre-existing vortex pinning defects. By irradiating the samples at angles of 0o, 15oand 30o from the crystallographic c-axis we explore the interplay between pre-existing and irradiation-induced pinning and find that irradiation at 30o leads to a moderate enhancement of Jc at 5 K at high fields (greater than 2 Tesla). In contrast, Jc was suppressed for all temperatures and fields for other angles of irradiation. Optimized particle irradiation procedures offer a way for improving the performance of high-temperature superconducting wires for use in high magnetic fields without the need for changing wire synthesis protocols.


1988 ◽  
Vol 128 ◽  
Author(s):  
Don M. Parkin ◽  
Michael Nastasii

ABSTRACTThe response of YBa2Cu3O7 and GdBa2Gu3O7 high temperature superconductors to particle irradiation is examined. Both ion and electron irradiations have been shown to first produce an orthorhombic-to-tetragonal transformation at relatively low doses followed by a tetragonal-to-amorphous transformation at doses roughly a factor of 10 higher. Analysis of the displacement stoichiometry that results from 120, 300, and 1000 keV electron irradiations, 400, and 500 keV O irradiations, and 300 keV helium irradiations indicate that the orthorhombic-to-tetragonal transformation is driven by O atom displacements either alone or in the presence of metal atom displacements and that the transformation to the amorphous phase is driven by displacements on the Y, Gd or other rare earth atom site.


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