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Particle Irradiation Induced Defects in High Temperature Superconductors

Published online by Cambridge University Press:  26 February 2019

Prashanta Mani Niraula ,
Eiman Bokari ,
Shahid Iqbal ,
Lisa Paulius ,
Matthew Smylie ,
Ulrich Welp ,
Wai-Kwong Kwok  and
Asghar Kayani
Prashanta Mani Niraula*
Affiliation:
Department of Physics, Western Michigan University, Kalamazoo, MI, United States.
Eiman Bokari
Affiliation:
Department of Physics, Western Michigan University, Kalamazoo, MI, United States.
Shahid Iqbal
Affiliation:
Department of Physics, Western Michigan University, Kalamazoo, MI, United States.
Lisa Paulius
Affiliation:
Department of Physics, Western Michigan University, Kalamazoo, MI, United States.
Matthew Smylie
Affiliation:
Argonne National Laboratory, Lemont, IL, United States.
Ulrich Welp
Affiliation:
Argonne National Laboratory, Lemont, IL, United States.
Wai-Kwong Kwok
Affiliation:
Argonne National Laboratory, Lemont, IL, United States.
Asghar Kayani
Affiliation:
Department of Physics, Western Michigan University, Kalamazoo, MI, United States.
*
*(Email: [email protected])
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Abstract

We 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.

Keywords

ion-solid interactionssuperconductingdefects
Type
Articles
Information
MRS Advances , Volume 4 , Issue 2: Characterization, Mechanical Properties and Structure-Property Relationships , 2019 , pp. 119 - 124
Copyright
Copyright © Materials Research Society 2019 

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