Stress-Induced Angular Momentum Quenching in MgO: Fe²⁺ as Observed by Mössbauer Spectroscopy

Author Info

J. Chappert, Massachusetts Institute of Technology
A. Misetich, Massachusetts Institute of Technology
Richard B. Frankel, Massachusetts Institute of TechnologyFollow
N. A. Blum, NASA Electronics Research Center

Recommended Citation

Published in Physical Review B, Volume 1, Issue 5, March 1, 1970, pages 1929-1934.

NOTE: At the time of publication, the author Richard B. Frankel was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1103/PhysRevB.1.1929.

Abstract

Under the influence of a suitable uniaxial stress, the quenching of the electronic angular momentum of the low-lying threefold degenerate Γ_5g level of Fe²⁺ in cubic MgO has been observed by Mössbauer spectroscopy. The result is consistent with Ham's model for the appearance of a quadrupole doublet at low temperatures. A value for the strain coefficient of Fe²⁺ in MgO has been obtained: G₁₁=585 cm^-1.

Disciplines

Physics

Copyright

1970 American Physical Society.

Publisher statement

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review B.