Investigation of Hyperfine Interaction and Structure in FeSiF 6 ·6HO 2  by Mössbauer Measurements | Zendy

Spiering H. | Zendy; Zimmermann R. | Zendy; Ritter G. | Zendy

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Investigation of Hyperfine Interaction and Structure in FeSiF 6 ·6HO 2 by Mössbauer Measurements

Author(s) -

Spiering H.,

Zimmermann R.,

Ritter G.

Publication year - 1974

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220620112

Subject(s) - hyperfine structure , quadrupole , tensor (intrinsic definition) , mössbauer spectroscopy , resonance (particle physics) , proton , quadrupole splitting , field (mathematics) , magnetic moment , ion , spectral line , atomic physics , ligand field theory , physics , nuclear magnetic resonance , chemistry , crystallography , condensed matter physics , nuclear physics , quantum mechanics , mathematics , pure mathematics

Mössbauer, proton resonance, and susceptibility measurements ( T ≦ 4.2 K) on FeSiF 6. · 6H 2 O can be understood with the hypothesis that there are three equivalent Fe(II) sites related by C 3 operation and the effective symmetry of the ligand field at each Fe(II) ion site is c 2h (or lower). The nonaxial susceptibility tensor χ is related to the measured axial tensor χ m by the equation χ m = ⅓(χ + C 3 χ C 3 −1 + C 3 2 χ C 3 −2 ). A new interpretation of proton resonance measurements on single crystals yields χ xx /χ yy = 1,54 being in good agreement with the value deduced from Mössbauer powder spectra. The hyperfine constants are reconsidered. The quadrupole moment Q of the 14.4 keV 57 Fe state is determined to be Q =0.20 b.

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