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Title: Micro-coil detection of nuclear magnetic resonance for nanofluidic samples

We have developed a novel dc SQUID system with a micro-coil input circuit to act as a local probe of quantum matter and nanosystems. The planar niobium micro-coil pickup loop is located remotely from the SQUID, coupled through a superconducting twisted pair. A high degree of coupling between the coil and the region of interest of similar dimensions (up to ∼ 100 microns) can be achieved. We report nuclear magnetic resonance (NMR) measurements to characterise the sensitivity of these coils to {sup 3}He in the gas phase at 4.2 K in a 30 mT magnetic field.
Authors:
; ; ;  [1] ; ; ;  [2]
  1. Department of Physics, Royal Holloway University of London, Egham, Surrey, TW20 0EX (United Kingdom)
  2. Physikalisch-Technische Bundesanstalt, Abbestrasse 2-12, D-10587 Berlin (Germany)
Publication Date:
OSTI Identifier:
22251438
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 2; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COUPLING; DETECTION; HELIUM 3; MAGNETIC FIELDS; NIOBIUM; NUCLEAR MAGNETIC RESONANCE; SENSITIVITY; SQUID DEVICES