๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Reliable low temperature NMR sample cell for reduced-geometry studies

โœ Scribed by K. Kim; J.R. Bodart; N.S. Sullivan

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
221 KB
Volume
36
Category
Article
ISSN
0011-2275

No coin nor oath required. For personal study only.

โœฆ Synopsis

This paper reports an NMR sample cell and probe design suitable for high sensitivity experimental studies, e.g. thin film studies of molecular hydrogen adsorbed on substrates such as hexagonal boron nitride. Easily machinable Kel-F (polychlorotrifluoroethylene or Fluorothene) is used in the NMR sample cell construction to fulfil two requirements: the sample cell should be superfluid 4He leak-tight and the material for the sample cell should exhibit a minimal background proton NMR signal. Using this new sample cell design, the signal from monolayer coverages of molecular hydrogen containing IO" spins adsorbed on the hexagonal BN surface has been observed, with a signal-to-noise ratio >lOO.

๐Ÿ“œ SIMILAR VOLUMES

Reliable low-temperature NMR cell for pr
Reliable low-temperature NMR cell for pressure studies
โœ N.S. Sullivan; C.M. Edwards; D. Zhou ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 150 KB

A simple KeI-F coil former, preformed and heat shrunk onto metal posts, was used successfully for high-field NMR studies of solids and fluids at low temperatures (0.035 < T < 30 K) and for pressures of 0 < P < 4 MPa. The seals were vacuum tight to superfluid +He over the full pressure range.