Nuclear forward scattering vs. conventional Mössbauer studies of atomically tailored Eu-based materials

Abstract

With the decrease in size of devices, rapid characterization of nano-devices is an inevitable necessity. It is shown that Mössbauer spectroscopy using synchrotron radiation from the advanced photon source provides such a tool of investigation. Results are presented and compared for conventional Mössbauer and Nuclear Forward Scattering for 151 Eu-doped magnesium sulfide as an example, especially at low concentrations.

The Fe4+/3+ Redox Mechanism in NaFeO2: A Simultaneous Operando Nuclear Resonance and X‐ray Scattering Study

“…Moreover, NFS allows for faster data collection and is particularly valuable when the concentration of Mössbauer active nuclei is low, when the size of the sample is particularly small (down to fractions of mm) or thin, and when the acquisition time is limited by the experimental framework as it is usually the case for operando measurements. [25] The collection of spectra in very short times permits capturing different instants of the reaction, while Mössbauer spectroscopy, collected over longer times, produces less spectra averaged over longer process fractions, and thus a lower resolution of the whole mechanism. The same is true for XRD, which thanks to the intensity of the synchrotron source provides a very good description of the redox process in relatively short measurement times.…”

First principles calculation of Mössbauer isomer shift

“…An important feature of Mössbauer spectroscopy and related methods, such as time-differential perturbed angular correlation spectroscopy [24] and methods based on scattering of synchrotron radiation [17][18][19][20][21][22][23], is that these methods provide information about the electronic structure of materials on an atomic scale. Information on the local chemical environment of the resonating nucleus is provided by the isomer shift of a nuclear transition energy.…”

“…Thus, Mössbauer spectroscopy enables one to study systematically and rapidly different charge and spin states of these elements as well as variations in the crystalline or chemical environment around them. The use of synchrotron ␥-radiation in nuclear resonance scattering spectroscopies [17][18][19][20][21][22][23] [17][18][19][20][21][22][23][24]) is that it is capable to provide information on the local electronic structure and chemical bonding on an atomic scale. Therefore, Mössbauer spectroscopy finds a large and increasing number of applications for the study of not only crystalline solids, but also of biological systems [11,12], molecules isolated in inert gas matrices [25][26][27][28][29][30][31][32][33], disordered solids [34][35][36], etc.…”

Calibration of S119n isomer shift usingab initiowave function methods

“…An important advantage of Mössbauer spectroscopy is that it is capable of providing information about the local chemical environment of the resonating nuclei on an atomic scale. [2][3][4][5][6][7][8][9] The dependence of the energy of the nuclear ␥-transition E ␥ on the interaction with the surrounding electrons is at the heart of the method and provides its high sensitivity to the electronic structure of the sample. The isomer shift of a Mössbauer spectrum is a sensitive characteristic of the local chemical environment of the resonating nucleus, which provides information on the charge and spin state of the target atom and on the geometry of its coordination sphere.…”