HYPERFINE STRUCTURE OF Fe$sup 57$ IN PARAMAGNETIC AND ANTIFERROMAGNETIC FeF$sub 2$ FROM THE MOSSBAUER EFFECT

Journal Article · Sat Dec 31 23:00:00 EST 1960 · Physical Review (U.S.) Superseded in part by Phys.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.121.63· OSTI ID:4120718

Wertheim, G K

Measurements of the gamma resonant absorption in oriented slabs of FeF/ sub 2/ were used to determine the magnitude and direction of the magnetic field at the iron nucleus in the antiferromagnetic state (3.40 x lO/sup 5/ oe at 0 deg K) and the quadrupole splitting in the paramagnetic state (31.2 Mc/sec) of this material. The observed electric and magnetic hfs in the antiferromagnetic state is interpretable in terms of an asymmetric electric field gradient tensor with its major axis perpendicular to the c axis, an asymmetry parameter of 0.33, and a quadrupole splitting of 30.3 Mc/sec at 45 deg K. (auth)

• Research Organization: Bell Telephone Labs., Murray Hill, N.J.
• NSA Number: NSA-15-006845
• OSTI ID: 4120718
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 121; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANTIFERROMAGNETISM
ELECTRIC MOMENTS
GAMMA RADIATION
HYPERFINE STRUCTURE
IRON 57
IRON FLUORIDES
MAGNESIUM
MAGNETIC FIELDS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MAGNETISM
MEASURED VALUES
MOESSBAUER EFFECT
NUCLEI
PARAMAGNETISM
PHYSICS
PLATES
RESONANCE
SPECTRA
TENSORS
VECTORS