skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Galvanically split superconducting microwave resonators for introducing internal voltage bias

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4863681· OSTI ID:22283278
; ; ; ;  [1]
  1. Department of Microtechnology and Nanoscience, MC2, Chalmers University of Technology, SE-41296 Gothenburg (Sweden)

We present the design and performance of high-Q superconducting niobium nitride microwave resonators intended for use in hybrid quantum systems, coupling spin degrees of freedom to the cavity mode, both magnetically and electrically. We demonstrate a solution that allows to introduce static electric fields in the resonator without compromising the microwave performance. Quality factors above 10{sup 5} remain unchanged in strong applied static electric fields above 10 MV/m and magnetic fields up to ∼400 mT. By design, the configuration of the dc field matches that of the microwave field, especially advantageous for experiments on electrostatically controlled spin systems.

OSTI ID:
22283278
Journal Information:
Applied Physics Letters, Vol. 104, Issue 5; 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