44
R. Rüffer and A. I. Chumakov
Fig. 1.23 Left: diamond containing ferropericlase inclusion AZ2. Right: Mössbauer spectrum of
the inclusion. Solid circles: experimental data; red line: full transmission integral fit assuming one
quadrupole doublet and one magnetic sextet. The arrows indicate the positions of four peaks of the
magnetic sextet, which can be seen more clearly in the inset that shows a magnified view near the
baseline (Reprinted from [130]. Copyright (2016), with permission from Elsevier)
cloudy zone will allow one to recover magnetic, temperature, and thermodynamic
conditions of slowly cooled asteroid bodies in their million-years traveling through
the Universe. This is what will be possible in nuclear resonance scattering with the
expected improvement of the spatial resolution to 100–200 nm.
Another challenging system for nano-imaging of magnetic, chemical, and oxidation states with nuclear resonance techniques are iron-bearing inclusions in diamonds. Syngenetic mineral inclusions in diamonds are pristine witnesses of the
chemical and mineralogical environment during diamond formation and thus represent a direct window into the Earth interior. They were for a long period the only
source to get information about the interior of the Earth such as the spin and valence
states, and the Fe
3+ /Fe tot ratio of its constituents. Still nowadays they are the only
source to get any material at hand from the interior [130].
Already with the presently available resolution of about 10 μm, one can perform
spatially-resolved studies of the biggest inclusions. Figure 1.23 shows an example
of an iron-bearing inclusion with the size of 192 × 85 × 105 μm
3 (left panel) and
the Mössbauer spectrum of one of the parts of the inclusion (right panel), where the
presence of a magnetic state is indicated [130].
The expected improvement of the spatial resolution to 100–200 nm will allow
for more detailed mapping of the iron-bearing inclusions. Such investigations of the
neighbour co-existing chemical phases will enable accessing a wealth of thermodinamical properties of formation of these systems.
Furthermore, the smaller beam size will enable investigations of much smaller
inclusions, which accounts for about 95% of the available samples. This will for the
first time allow for statistically representative studies.
R. Rüffer and A. I. Chumakov
Fig. 1.23 Left: diamond containing ferropericlase inclusion AZ2. Right: Mössbauer spectrum of
the inclusion. Solid circles: experimental data; red line: full transmission integral fit assuming one
quadrupole doublet and one magnetic sextet. The arrows indicate the positions of four peaks of the
magnetic sextet, which can be seen more clearly in the inset that shows a magnified view near the
baseline (Reprinted from [130]. Copyright (2016), with permission from Elsevier)
cloudy zone will allow one to recover magnetic, temperature, and thermodynamic
conditions of slowly cooled asteroid bodies in their million-years traveling through
the Universe. This is what will be possible in nuclear resonance scattering with the
expected improvement of the spatial resolution to 100–200 nm.
Another challenging system for nano-imaging of magnetic, chemical, and oxidation states with nuclear resonance techniques are iron-bearing inclusions in diamonds. Syngenetic mineral inclusions in diamonds are pristine witnesses of the
chemical and mineralogical environment during diamond formation and thus represent a direct window into the Earth interior. They were for a long period the only
source to get information about the interior of the Earth such as the spin and valence
states, and the Fe
3+ /Fe tot ratio of its constituents. Still nowadays they are the only
source to get any material at hand from the interior [130].
Already with the presently available resolution of about 10 μm, one can perform
spatially-resolved studies of the biggest inclusions. Figure 1.23 shows an example
of an iron-bearing inclusion with the size of 192 × 85 × 105 μm
3 (left panel) and
the Mössbauer spectrum of one of the parts of the inclusion (right panel), where the
presence of a magnetic state is indicated [130].
The expected improvement of the spatial resolution to 100–200 nm will allow
for more detailed mapping of the iron-bearing inclusions. Such investigations of the
neighbour co-existing chemical phases will enable accessing a wealth of thermodinamical properties of formation of these systems.
Furthermore, the smaller beam size will enable investigations of much smaller
inclusions, which accounts for about 95% of the available samples. This will for the
first time allow for statistically representative studies.