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Temperature Dependent Energy Shifts in the Resonance Absorption and Resonance Fluorescence Scattering of Mössbauer γ‐Quanta in FeS 2
Author(s) -
Jex H.,
Hillmann H.,
Müllner M.
Publication year - 1992
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.2221720139
Subject(s) - resonance (particle physics) , rayleigh scattering , scattering , absorption (acoustics) , atomic physics , quadrupole splitting , nuclear quadrupole resonance , chemistry , resonance fluorescence , mössbauer spectroscopy , quadrupole , nuclear magnetic resonance , fluorescence , physics , optics , crystallography
The relativistic Doppler effect of Mössbauer γ‐quanta from a 57 Co source is investigated in the resonance absorption of FeS 2 powder and in the resonance scattering from the (200) reflection of FeS 2 single crystals in the temperature range 298 K ≦ T ≦ 598 K. The shift of resonances is d ln ω/d T = −(2.58 ± 0.07) × 10 −15 K −1 , while the quadrupole splitting d E Q = (633 ± 9) μm/s is temperature independent. Single crystal data exhibit an unexpected additional broadening of one quadrupole resonance, which originates in an interference of nuclear resonance and electronic Rayleigh scattering.