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Effects of magnetism in superconducting hybrid structures

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Inductance effects and dimensionality crossover in hybrid superconducting arrays

Herbert Shea

We report measurements made on hybrid arrays consisting of superconducting wires along one direction of a square geometry and Josephson junctions along the perpendicular direction. The differential resistance Rd across the array as a function of normalized ...

1995

Multilevel devices of YBa/sub 2/Cu/sub 3/O/sub 7/ with NdGaO/sub 3/ barrier

Dirk Grundler

We have fabricated YBa/sub 2/Cu/sub 3/O/sub 7/ ramp-type junctions incorporating a barrier layer of NdGaO/sub 3/ with a nominal thickness of 2 nm. The junctions exhibit pronounced Josephson effects and operate up to 82 K. The characteristics are well descr ...

Institute of Electrical and Electronics Engineers1995

Current phase relation of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7/(-δ) step edge junction

Dirk Grundler

The small signal rf impedance of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-/spl delta// step edge junction rf SQUIDs operating in a strongly nonhysteretic mode has been measured. The phase dependent inductance L/sub J/(/spl phi/) and the current phase relation I/s ...

Institute of Electrical and Electronics Engineers1995

Crystal-field excitations in high-T

Joël Mesot

The discovery of high-Tc superconductivity in the perovskite-type copper-oxide compounds has given rise to a large amount of materials research. Of particular interest in determining the nature of the superconductivity is the effect of substituents at vari ...

1994

Magnetoconductance oscillations in high temperature superconducting networks

Philippe Flückiger

The complex AC impedance Z of superconducting YBa2Cu 3O7 triangular networks exposed to a perpendicular magnetic field was measured with a two-coil mutual inductance technique. At temperatures close to the transition temperature, both the imaginary and the ...

1991

Complex AC conductance of YBaCuO films

Philippe Flückiger

The AC linear response of YBaCuO films prepared by RF magnetron sputtering to a small oscillating field was studied as a function of temperature and transverse magnetic field. The structures observed are quite similar to those found in artificially prepare ...

1989