Nuclear magnetic resonance of 113Cd and 199Hg in Cd-Mg and Cd-Hg solid solutions

Journal Article · Thu Nov 01 04:00:00 EST 1973 · Journal of Research of the National Bureau of Standards, Section A: Physics and Chemistry

DOI:https://doi.org/10.6028/jres.077A.043· OSTI ID:4337347

Zhukov, V. V.; Weisman, I. D.; Bennett, L. H.

The current theoretical and experimental situation with respect to Knight shifts and bulk susceptibility of Cd in pure Cd and in Cd-Mg and Cd-Hg alloys is reviewed. New experimental isotropic and anisotropic Knight shift data on /sup 113/Cd in Cd- Mg and Cd-Hg alloys and on /sup 199/Hg in Cd-Hg alloys are presented. The behavior of the /sup 199/Hg sites is found to be remarkably similar to that of the /sup 113/Cd site in the Cd--Hg alloys. However the ratio of isotropic Knight shift of /sup 199/Rg to /sup 113/Cd is somewhat greater than the ratio of /sup 199/Hg to /sup 113/Cd atomic hyperfine fields, suggesting that there is more local electronic s character at the Fermi surface in the alloy than in the pure metals. This is consistent with the theoretical picture of Cd in which phonon scattering induced by increasing temperature or alloying smears and weakens the lattice potential which in turn leads to a more s-like Fermi surface. Further, the /sup 113/Cd Knight shift is found to be a useful tool for monitoring the phase segregation that occurs in Cd-- Mg due to internal oxidation and for determining the concentrations of solutes such as Hg and Mg in Cd-Hg and Cd--Mg alloys. (5 tables, 14 figures, 36 references) (auth)

• Research Organization: National Bureau of Standards, Washington, DC
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-018971
• OSTI ID: 4337347
• Journal Information: Journal of Research of the National Bureau of Standards, Section A: Physics and Chemistry, Journal Name: Journal of Research of the National Bureau of Standards, Section A: Physics and Chemistry Journal Issue: 6 Vol. 77A; ISSN 0022-4332
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*CADMIUM 113-- NUCLEAR MAGNETIC RESONANCE
*CADMIUM BASE ALLOYS-- KNIGHT SHIFT
*MERCURY 199-- NUCLEAR MAGNETIC RESONANCE
CHEMICAL COMPOSITION
FERMI LEVEL
HYPERFINE STRUCTURE
MAGNETIC FIELDS
MAGNETIC SUSCEPTIBILITY
MERCURY ALLOYS
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
OXIDATION
REVIEWS
S STATES
SEGREGATION MAGNESIUM ALLOYS