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Effect of 120 MeV Oxygen Ion Irradiation on Current-Voltage Characteristics in YBaCuO

Published online by Cambridge University Press:  26 February 2011

A. Iwase ,
N. Masaki ,
T. Iwata  and
T. Nihira
A. Iwase
Affiliation:
Japan Atomic Energy Research Institute, Dept. of Physics, Tokai-Mura, Naka-Gun, Ibaraki, 319–11, Japan
N. Masaki
Affiliation:
Japan Atomic Energy Research Institute, Dept. of Physics, Tokai-Mura, Naka-Gun, Ibaraki, 319–11, Japan
T. Iwata
Affiliation:
Japan Atomic Energy Research Institute, Dept. of Physics, Tokai-Mura, Naka-Gun, Ibaraki, 319–11, Japan
T. Nihira
Affiliation:
Ibaraki University, Faculty of Engineering, Hitachi, Ibaraki, 316, Japan
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Abstract

The effect of 120 MeV oxygen ion irradiation on the current-voltage(I-V) characteristics has been studied at 77.3 K in YBaCuO superconductors. In the small current region, the voltage V against the current I and the ion-fluence Φ can be described by the following simple form; ln(V/VO)=αln(I/IO)×ln(Φ/ΦO), where α, VO, IO and ΦO are constants. The experimental results have been discussed in terms of current-induced unbinding of thermally excited vortex pairs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 209: Symposium K – Defects in Materials , 1990 , 847
Copyright
Copyright © Materials Research Society 1991

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References

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