SPECIFIC JOSEPHSON JUNCTION ELEMENT, QUANTUM BIT, SUPERCONDUCTING QUANTUM INTERFERENCE ELEMENT, TERAHERTZ DETECTION DEVICE, TERAHERTZ OSCILLATION DEVICE, VOLTAGE STANDARD DEVICE, MILLIMETER AND SUBMILLIMETER WAVE RECEIVER, AND MANUFACTURING METHOD FOR SPECIFIC JOSEPHSON JUNCTION ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a specific Josephson junction element which can achieve specific Josephson junction effect in an iron arsenic superconductor.;SOLUTION: A specific Josephson junction element 1, composed of single crystals of an iron arsenic superconductor having a crystal structure of a superconducting layer 2 and an insulation layer 3 laminated in the c-axis direction, comprises: a first electrode part 10 and a second electrode part 20 which are positioned separately in an optional direction along the ab plane orthogonal to the c-axis direction; a bridge part 30 which connects the first electrode part 10 and the second electrode part 20. The bridge part 30 has a Josephson electrical current circulation part 33 sandwiched by a first slit 31 and a second slit 32 in the direction along the ab plane orthogonal to the c-axis direction.;COPYRIGHT: (C)2012,JPO&INPIT