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

Journal Article · Sat Jun 01 04:00:00 EDT 1991 · Review of Scientific Instruments; (USA)

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

Fan, N Q; Clarke, J ^[1]

---

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), Journal Name: Review of Scientific Instruments; (USA) Vol. 62:6; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

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