Cuprous oxide manometer for high-pressure magnetic resonance experiments

Journal Article · Fri May 01 04:00:00 EDT 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1142564· OSTI ID:7048170

Reyes, A P; Ahrens, E T; Heffner, R H; Hammel, P C; Thompson, J D ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We present a manometer designed to measure pressures of 1--20 kbar in temperatures between 4--300 K in cylinder-piston type chambers, with an accuracy of {similar to}100 bar. The manometer is based on pressure-dependent zero-field {sup 63}Cu nuclear quadrupole resonance frequency corresponding to {vert bar}{plus minus}3/2{r angle}{leftrightarrow}{vert bar}{plus minus}1/2{r angle} transition in Cu{sub 2}O. The nuclear quadrupole resonance frequency {nu}{sub {ital Q}} varies linearly with pressure and its temperature dependence is adequately explained by a model of lattice vibrational modes in O---Cu---O bonds. This manometer is particularly convenient for zero or high-field magnetic resonance experiments.

• OSTI ID: 7048170
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 63:5; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
440800 -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CONTAINERS
COPPER 63
COPPER COMPOUNDS
COPPER ISOTOPES
COPPER OXIDES
INTERMEDIATE MASS NUCLEI
ISOTOPES
NUCLEAR QUADRUPOLE RESONANCE
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PRESSURE EFFECTS
PRESSURE MEASUREMENT
PRESSURE VESSELS
RESONANCE
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS