Low-frequency nuclear magnetic resonance and nuclear quadrupole resonance spectrometer based on a dc superconducting quantum interference device

Journal Article · Sat Jun 01 00:00:00 EDT 1991 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1142466· OSTI ID:5550680

Fan, N Q; Clarke, J ^[1]

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1. Department of Physics, University of California and Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (USA)

A sensitive spectrometer, based on a dc superconducting quantum interference device, for the direct detection of low-frequency pulsed nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR), is described. The frequency response extends from about 10 to 200 kHz, and the recovery time after the magnetic pulse is removed is typically 50 {mu}s. As examples, NMR spectra are shown from Pt and Cu metal powders in a magnetic field of 6 mT, and NQR spectra are shown from {sup 2}D in a tunneling methyl group and {sup 14}N in NH{sub 4}ClO{sub 4}.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5550680
• Journal Information: Review of Scientific Instruments; (USA), Vol. 62:6; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
NMR SPECTROMETERS
DESIGN
SQUID DEVICES
USES
HZ RANGE
KHZ RANGE
NUCLEAR QUADRUPOLE RESONANCE
PLATINUM
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FLUXMETERS
FREQUENCY RANGE
MEASURING INSTRUMENTS
METALS
MICROWAVE EQUIPMENT
PLATINUM METALS
RESONANCE
SPECTROMETERS
SUPERCONDUCTING DEVICES
TRANSITION ELEMENTS
440800* - Miscellaneous Instrumentation- (1990-)
656002 - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)