Molybdenum-rhenium alloy based high-Q superconducting microwave resonators

Journal Article · Mon Dec 01 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4903042· OSTI ID:22402415

Singh, Vibhor; Schneider, Ben H.; Bosman, Sal J.; Merkx, Evert P. J.; Steele, Gary A. ^[1]

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1. Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 5046, 2600GA, Delft (Netherlands)

Superconducting microwave resonators (SMRs) with high quality factors have become an important technology in a wide range of applications. Molybdenum-Rhenium (MoRe) is a disordered superconducting alloy with a noble surface chemistry and a relatively high transition temperature. These properties make it attractive for SMR applications, but characterization of MoRe SMR has not yet been reported. Here, we present the fabrication and characterization of SMR fabricated with a MoRe 60–40 alloy. At low drive powers, we observe internal quality-factors as high as 700 000. Temperature and power dependence of the internal quality-factors suggest the presence of the two level systems from the dielectric substrate dominating the internal loss at low temperatures. We further test the compatibility of these resonators with high temperature processes, such as for carbon nanotube chemical vapor deposition growth, and their performance in the magnetic field, an important characterization for hybrid systems.

• OSTI ID: 22402415
• Journal Information: Applied Physics Letters, Vol. 105, Issue 22; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON NANOTUBES
CHEMICAL VAPOR DEPOSITION
DIELECTRIC MATERIALS
FABRICATION
MAGNETIC FIELDS
MICROWAVE EQUIPMENT
MOLYBDENUM ALLOYS
QUALITY FACTOR
RESONATORS
RHENIUM ALLOYS
TRANSITION TEMPERATURE