NUCLEAR QUADRUPOLE COUPLING IN ALKALI IODIDE CRYSTALS

Journal Article · Sat Apr 01 04:00:00 EST 1961 · Phys. and Chem. Solids

DOI:https://doi.org/10.1016/0022-3697(61)90060-9· OSTI ID:4006569

Menes, M; Bolef, D I

The dynamic nuclear quadrupole interaction (first derivative of the quadrupole interaction with respect to strain) was measured for the I/sup 127/ nucleus in crystals of CsI, RbI, KI, and NaI. These measurements were made by observing the resonant absorption of energy from an acoustic wave by the nuclear spins. Longitudinal waves propagating along a cubic axis of the crystal were used. The observed values of the dynamic nuclear quadrupole interaction are: CsI, 1600 Mc; RbI, 615 Mc; KI, 300 Mc; NaI, 660 Mc. These values can be correlated with the chemical shift of the iodine ion in these crystals with the help of a simple model based on the work of Townes and Dailey and Yosida and Moriya, which attributes the quadrupole coupling and the chemical shift to the hole left in the outer p shell of the ion. This hole is due to the distortion of the ion (admixture of excited states) by the crystal surroundings. In connection with this work, the chemical shift of LiI/sup 127/ was measured and found to be -- 3.3 x 10/sup -4/. (auth)

• Research Organization: Westinghouse Research Labs., Pittsburgh
• NSA Number: NSA-15-019380
• OSTI ID: 4006569
• Journal Information: Phys. and Chem. Solids, Journal Name: Phys. and Chem. Solids Vol. Vol: 19
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ALKALI METALS
CESIUM IODIDES
CHEMISTRY
CRYSTALS
ELECTRIC FIELDS
ENERGY
EXCITATION
INTERACTIONS
IODIDES
IODINE 127
LITHIUM IODIDES
MAGNETIC FIELDS
MEASURED VALUES
NUCLEAR MODELS
POTASSIUM IODIDES
QUADRUPOLES
RUBIDIUM IODIDES
SODIUM IODIDES
SPECTRAL SHIFT
SPIN