HYPERFINE STRUCTURE OF DIVALENT AND TRIVALENT Fe$sup 57$ IN COBALT OXIDE

Journal Article · Wed Nov 01 04:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.124.764· OSTI ID:4827524

Wertheim, G K

The hyperfine structure of divalent and trivalent iron in CoO is obtained from the Mossbauer effect of Fe/sup 57/ produced by the electron-capture decay of Co/sup 57/. The two valence states are obtained respectively by x ray and Auger eifect de-excitation of the K-shell hole resulting from electron capture in divalent Co/sup 57/. Higher valence states which could be produced by multiple Auger de-excitation are not observed, indicating that their lifetimes are short. The magnetic field at a divalent iron nucleus at low temperature is 2.0 x 10/sup 5/ gauss, while that at a trivalent one is 5.6 x 10/sup 5/ gauss. The quadrupole coupling in this almost cubic environment is less than I.0 Mc. (auth)

• Research Organization: Bell Telephone Labs., Inc., Murray Hill, N.J.
• NSA Number: NSA-16-003733
• OSTI ID: 4827524
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 124; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ATOMS
AUGER EFFECT
BINDING ENERGY
CAPTURE
COBALT 57
COBALT OXIDES
DECAY
ELECTRONS
EMISSION
ENERGY LEVELS
EXCITATION
HYPERFINE STRUCTURE
INTERACTIONS
IRON 57
LIFETIME
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETIC MOMENTS
MOESSBAUER EFFECT
NUCLEAR MODELS
PHOTONS
PHYSICS
QUADRUPOLES
SHELL MODELS
TRANSIENTS
X RADIATION