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Title: Instrument for in-situ orientation of superconducting thin-film resonators used for electron-spin resonance experiments

When used in electron-spin resonance measurements, superconducting thin-film resonators must be precisely oriented relative to the external magnetic field in order to prevent the trapping of magnetic flux and the associated degradation of resonator performance. We present a compact design solution for this problem that allows in-situ control of the orientation of the resonator at cryogenic temperatures. Tests of the apparatus show that when proper alignment is achieved, there is almost no hysteresis in the field dependence of the resonant frequency.
Authors:
; ;  [1] ;  [1] ;  [2]
  1. Department of Physics and Astronomy, Amherst College, Amherst, Massachusetts 01002-5000 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
22392326
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DESIGN; ELECTRON SPIN RESONANCE; HYSTERESIS; MAGNETIC FIELDS; MAGNETIC FLUX; ORIENTATION; PERFORMANCE; RESONATORS; THIN FILMS; TRAPPING