Summary

This book elucidates the principles and applications of Mössbauer spectroscopy for precise measurements of nuclear isomer shifts, electric quadrupole interactions, and magnetic dipole interactions. The central thesis is that the recoilless emission and absorption of gamma rays by atomic nuclei in solids allows for extremely high resolution measurements of subtle interactions with the nuclear environment. Readers gain understanding of how these interactions reveal information about oxidation states, coordination numbers, magnetic ordering, and lattice dynamics in materials.

The text details the experimental techniques necessary for performing Mössbauer measurements, including source preparation, absorber handling, and spectrometer operation. It explains the theoretical framework underpinning the observed spectroscopic parameters, connecting them to fundamental nuclear and solid-state physics. A key takeaway is the ability to probe nuclear properties and chemical environments with exquisite sensitivity, making Mössbauer spectroscopy a powerful tool for materials science, chemistry, and solid-state physics.

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Key concepts

Recoilless nuclear resonance absorption — The phenomenon where a nucleus absorbs or emits a gamma ray without recoil, enabling sharp spectral features.
Isomer shift — The shift in the Mössbauer resonance energy due to the electrostatic interaction between the nuclear charge and surrounding s-electrons.
Quadrupole splitting — The splitting of the Mössbauer resonance due to the interaction between the nuclear quadrupole moment and an electric field gradient at the nucleus.
Magnetic hyperfine splitting — The splitting of the Mössbauer resonance due to the interaction between the nuclear magnetic dipole moment and a magnetic field at the nucleus.