University of California

Other

Theodore Van Duzer

Nathan Newman

Lei Yu

Anupama Bhat Kaul

Xiaoxan Meng

David K Chin

A Josephson junction has inherent resistance which effectively shunts the junction and thereby obviates a separate shunt resistor and thus reduces surface area in an integrated circuit including a plurality of Josephson junctions. The Josephson junction comprises a stacked array of layers of Nb and a superconductor with T >9&deg; K having a penetration depth greater than that of Nb, for example Nb Ti N, with a layer of a conducting material having a resistivity between 200 &mgr;&OHgr;-cm, 1 &OHgr;-cm, such as Ta N in the stack. The Josephson junction can be formed on a supporting substrate such as silicon with a ground plane such as Nb on the substrate and an insulating layer such as SiO separating the ground plane from the stacked array.

Internally shunted Josephson junction device

A HTSC Josephson device wherein the barrier layer is a cubic, conductive material.

High-temperature superconducting josephson devices having a barrier

A structure having a surface exposed to electromagnetic radiation in the microwave or millimeter-wave spectrum wherein discrete elements including a high-temperature superconducting film formed on a substrate are disposed on the surface.

Growing community of inventors

El Cerrito, CA, United States of America

Theodore Van Duzer