STUDY OF IRON IONS IN NaCl USING THE MOSSBAUER EFFECT. I. THE CoCl$sub 2$ PRECIPITATED STATE

Journal Article · Thu Aug 15 04:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys.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.131.1410· OSTI ID:4671903

Mullen, J G

Single crystals of CoCl/sub 2/ containing tracer Co/sup 57/ were grown by precipitation within NaCl at low temperatures. The observed Mossbauer spectrum for Fe/sup 57/ indicates an isomer shift of 1.32 plus or minus 0.04 mm/ sec, above stainless steel and a quadrupole splitting of 1.17 plus or minus 0.06 mm/sec at 80 deg K, which is significantiy less thin has been observed in ionicFe/sup 2+/ compounds. The small splitting can be largely explained by assuming a doubly degenerate gound state with the appropriate value functions. The measured quadrupole splitting is reducd about 20% at room temperature which ose used to interpret the temperature dependence of the splittings in iron compounds. The observed angular distribution of the intensities of the two lines demonstrates that the precipitated crystals near the surface are partially aligned in their spatial orientation. The data indicate only one charge state (Fe/sup 2+/), showing that higher charge states resulting from the emission of Auger electrons reach equilibrium in less than 10/sup -7 sec. (auth)

• Research Organization: Argonne National Lab., Ill.
• NSA Number: NSA-17-031199
• OSTI ID: 4671903
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 131; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
AUGER EFFECT
COBALT 57
COBALT CHLORIDES
ELECTRIC CHARGES
ELECTRIC MOMENTS
ELECTRONS
EMISSION
ENERGY LEVELS
EXCITATION
IONS
IRON
IRON COMPOUNDS
LIFETIME
MAGNETIC MOMENTS
MEASURED VALUES
MOESSBAUER EFFECT
MONOCRYSTALS
PHYSICS
POLARIZATION
PRECIPITATION
QUADRUPOLE MOMENTS
QUANTUM MECHANICS
SODIUM CHLORIDES
SPECTRA
STAINLESS STEELS
SURFACES
TEMPERATURE
TRACER TECHNIQUES