Patent ID: 11950510
Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC H  F  Y | IPC H

Claim 0:
1. A superconductor junction comprising:
a normal metal layer having a first side and a second side;
an insulating layer overlying the second side of the normal metal layer;
a first superconductor layer formed of a first superconductor material, the first superconductor layer having a first side overlying a side of the insulating layer opposite the side that overlies the normal metal layer;
a second superconductor layer formed of a second superconductor material, the second superconductor layer having a first side overlying a side of the first superconductor material opposite the side that overlies the insulating layer, the second superconductor material has a higher diffusion coefficient than the first superconductor material and/or the second superconductor material has a lower recombination coefficient than the first superconductor layer, wherein the first superconductor layer has a thickness of about 1 coherence length to about 3 coherence lengths associated with the first superconductor material and the second superconductor layer has a thickness of at least 4 coherence lengths associated with the second superconductor material; and
a normal metal layer quasiparticle trap coupled to a second side of the second superconductor layer.