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A STUDY OF THE INTERNAL FIELDS ACTING ON IRON NUCLEI IN IRON GARNETS, USING THE RECOIL-FREE ABSORPTION IN Fe$sup 57$ OF THE 14.4 KEV GAMMA RADIATION FROM Fe$sup 57$m. Technical Note No. 2

Technical Report ·
OSTI ID:4048234
; ; ;

The shape of the recoil-free absorption spectrum obtained in iron garnet absorbers was investigated with a Co/sup 5//sup 7/ source embedded in stainless steel. The results confirm the existence of two iron sublattices each showing a Zeeman structure characterized by diiferent parameters. No significant differences were detected between the Zeeman structure in yttrium iron garnet and dysprosium iron garnet. The values obtained for the effective magnetic field at the Fe/sup 5//sup 7/ nuclei at room temperature are 3.90 x lO/sup 5/ and 4.85 x lO/sup 5/ gauss for the "d" and "a" iron lattice sites, respectively. At liquid air temperature, the corresponding fields are 4.6 x lO/sup 5/ and 5.4 x lO/sup 5/ gauss, respectively. The mean value of the chemical shift for the "d" sites relative to stainless steel is about 0.04 plus or minus 0.005 cm/sec and for the "a" sites about 0.06 plus or minus 0.005 cm/sec. (auth)

Research Organization:
Hebrew Univ., Jerusalem
NSA Number:
NSA-15-021513
OSTI ID:
4048234
Report Number(s):
AFOSR-225; AD-251235
Country of Publication:
Country unknown/Code not available
Language:
English

Similar Records

STUDY OF THE INTERNAL FIELDS ACTING ON IRON NUCLEI IN IRON GARNETS, USING THE RECOIL-FREE ABSORPTION IN Fe$sup 57$ OF THE 14.4-kev GAMMA RADIATION FROM Fe$sup 57$m
Journal Article · Mon May 01 00:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D · OSTI ID:4022239
HYPERFINE STRUCTURE OF Fe$sup 57$ IN YTTRIUM-IRON GARNET FROM THE MOSSBAUER EFFECT
Journal Article · Thu Jun 01 00:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D · OSTI ID:4065076
HYPERFINE STRUCTURE OF THE 14.4 kev GAMMA LINE OF $sup 57$Fe IN SOME IRON OXYHYDROXIDES INVESTIGATED WITH THE MOSSBAUER EFFECT
Technical Report · Wed May 01 00:00:00 EDT 1963 · OSTI ID:4141281

Related Subjects

ABSORPTION
ALUMINUM SILICATES
COBALT 57
DYSPROSIUM COMPOUNDS
ENERGY RANGE
GAMMA RADIATION
GAMMA SOURCES
GARNETS
IRON
IRON 57
IRON COMPOUNDS
ISOMERS
LATTICES
LOW TEMPERATURE
MAGNETIC FIELDS
MEASURED VALUES
MINERALS
MOESSBAUER EFFECT
PHYSICS
SPECTRA
STAINLESS STEELS
TEMPERATURE
VELOCITY
YTTRIUM COMPOUNDS
ZEEMAN EFFECT