A New Approach for the Fabrication of MgB2 Superconducting Tape with Large In-field Transport Critical Current Density

Details A New Approach for the Fabrication of MgB2 Superconducting Tape with Large In-field Transport Critical Current Density A New Approach for the Fabrication of MgB2 Superconducting Tape with Large In-field Transport Critical Current Density

2002-03-06

arxiv.org/abs/cond-mat/0203113v1

Physics

Condensed Matter

Superconductivity

3 page PDF file

Scientific paper

10.1063/1.1495087

The paper reports the first successful fabrication of MgB2 superconducting tape using a flexible metallic substrate as well as its strong pinning force, which was verified by direct measurement of transport critical current density. The tape was prepared by depositing MgB2 film on a Hastelloy tape buffered with an YSZ layer. The Jc of the tape exceeds 105A/cm2 at 4.2K and 10T, which is considered as a common benchmark for magnet application. The Jc dependence on magnetic field remains surprisingly very small up to 10T, suggesting that the tape has much better magnetic field characteristic than conventional Nb-Ti wires in liquid helium.

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