Low-temperature nuclear magnetic resonance with a dc SQUID amplifier

We report the detection of nuclear magnetic resonance at 4 K and 1.9 MHz with a receiver based on a thin-film dc superconducting quantum interference device. The noise temperature of the spectrometer is 300 mK, limited by the second stage amplifier.

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Bibliographische Detailangaben
Veröffentlicht in:	Appl. Phys. Lett.; (United States) 1986-01, Vol.48 (4), p.300-302
Hauptverfasser:	FREEMAN, M. R, GERMAIN, R. S, RICHARDSON, R. C, ROUKES, M. L, GALLAGHER, W. J, KETCHEN, M. B
Format:	Artikel
Sprache:	eng
Schlagworte:	AMPLIFIERS Applied sciences Circuit properties CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Electric, optical and optoelectronic circuits Electronic circuits ELECTRONIC EQUIPMENT Electronics Exact sciences and technology FABRICATION FLUXMETERS MEASURING INSTRUMENTS MICROWAVE EQUIPMENT NMR SPECTROMETERS NOISE SPECTROMETERS SQUID DEVICES SUPERCONDUCTING DEVICES 420201 > Engineering-- Cryogenic Equipment & Devices THIN FILMS ULTRALOW TEMPERATURE USES
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Beschreibung
Zusammenfassung:	We report the detection of nuclear magnetic resonance at 4 K and 1.9 MHz with a receiver based on a thin-film dc superconducting quantum interference device. The noise temperature of the spectrometer is 300 mK, limited by the second stage amplifier.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.96587