Results 91 to 100 of about 29,041 (189)

High‐purity X‐ray polarimetry at high energies for Mössbauer spectroscopy

Journal of Synchrotron Radiation, EarlyView.
This work extends high‐purity X‐ray polarimetry into the 15–30 keV range, enabling polarization‐filtered synchrotron Mössbauer spectroscopy of higher‐energy nuclear resonances. A proof‐of‐principle experiment at 22.494 keV demonstrates a polarization purity of (1.2 ± 0.5) × 10−8, establishing the feasibility of the approach.High‐purity X‐ray ...
Berit Marx-Glowna, Ingo Uschmann, Robert Loetzsch, Willi Hippler, Judith Görs, Tony Wunderlich, Sakshath Sadashivaiah, Martin Tolkiehn, Gerhard G. Paulus, Ralf Röhlsberger   +9 more
wiley   +1 more source

NEW DIRECTIONS FOR THE MÖSSBAUER EFFECT DATA CENTER

, 1979
Afin de se suffire à lui-même le "Mössbauer Effect Data Center" a établi un plan qui regroupe les publications de "Mössbauer Effect Reference" et "Data Journal" plutôt que l'"Index" annuel.
W.L. Gettys, J.G. Stevens, V.E Stevens
core   +1 more source

High‐resolution monochromator for the 8.41 keV 169Tm nuclear resonance

Journal of Synchrotron Radiation, EarlyView.
A high‐resolution monochromator for the 8.41 keV 169Tm nuclear resonance is presented enabling nuclear resonant scattering on Tm compounds at PETRA III beamline P01. Hyperfine parameters and phonon densities of states of metallic Tm and Tm2O3 are studied.Rare‐earth elements are key components in a wide range of functional materials, including solid ...
Sven Velten, Deepak Prajapat, Frank-Uwe Dill, Ilya Sergeev   +3 more
wiley   +1 more source

Mössbauer forward scattering spectra of ferromagnets in radio-frequency magnetic field [PDF]

Ядерна фізика та енергетика, 2012
The transmission of Mössbauer radiation through a thick ferromagnetic crystal, subjected to the radio-frequency (rf) magnetic field, is studied. A quantum-mechanical dynamical scattering theory is developed, taking into account both the periodical ...
A. Ya. Dzyublik, E. K. Sadykov, G. I. Petrov, V. V. Arinin, F. H. Vagizov, V. Yu. Spivak   +5 more
doaj  

Crystal structure and magnetic properties of Li1-xNaxFePO4 based on Mössbauer spectroscopy

AIP Advances, 2017
The Na-doped Li1-xNaxFePO4 (x = 0.0, 0.01, 0.05, 0.1, 1) samples were synthesized by solid-state reaction method and investigated with X-ray diffractometer (XRD), vibrating sample magnetometer (VSM) and Mössbauer spectrometer.
Byung Ug Ko, Hyunkyung Choi, Taejoon Kouh, Sam Jin Kim, Chul Sung Kim   +4 more
doaj   +1 more source

P‐T Uncertainty in Subsolidus Metamorphic Systems: Sources, Patterns and Controls

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Phase equilibrium modelling of metamorphic rocks is subject to multiple, superimposed sources of uncertainty that affect pressure–temperature (P$$ P $$‐T$$ T $$) estimates, making it difficult to independently distinguish and evaluate the contribution of each source.
I. P. Cawood, T. Mackay‐Champion
wiley   +1 more source

MÖSSBAUER SPECTROSCOPIC STUDIES OF Sn(IV) IN GLASSY AQUEOUS SOLUTIONS

, 1979
Les paramètres Mössbauer de 119Sn (IV) sont mesurés dans des solutions aqueuses vitreuses contenant des sels métalliques (ou acides). On en déduit l'arrangement local des anions et des molécules d'eau autour de Sn (IV).Mössbauer parameters were obtained ...
M. Takeda, H. Kanno, T. Tominaga
core   +1 more source

Ferrites nanoparticles MFe₂O₄ (M = Ni and Zn): hydrothermal synthesis and magnetic properties

Boletín de la Sociedad Española de Cerámica y Vidrio, 2008
MFe2O4 (M = Ni and Zn) nanoparticles were prepared by the hydrothermal method. The obtained samples were characterized by X-ray and electron diffraction, Scanning and Transmission Electron Microscopy and Mössbauer spectroscopy.
Pérez Mazariego, J. L., Marquina, M. L., Marquina, V., Gómez, R., Blanco Gutiérrez, V., Torralvo Fernández, M. J., Sáez Puche, R., Ridaura, R.   +7 more
doaj  

Magnesioferrita e caminho pedogenético de transformação de óxidos de ferro magnéticos em dois perfis de solo derivados de tufito da região do Alto Paranaíba (MG) Magnesioferrite and pedogenetic transformation pathway of magnetic iron oxides in two soil profiles developing on tuffite of the Alto Paranaíba region, state of Minas Gerais, Brazil

Revista Brasileira de Ciência do Solo, 2005
Solos magnéticos derivados de tufito da região do Alto Paranaíba (MG) têm mineralogia bastante variável, mas são relativamente ricos em óxidos de Fe isoestruturais ao espinélio, mais especificamente: (Ti, Mg)-magnetita e (Ti, Mg)-maghemita.
Fernando Dias da Silva, Paulo Rogério da Costa Couceiro, José Domingos Fabris, Antonio Taranto Goulart, João Carlos Ker   +4 more
doaj   +1 more source

Quantum Chemistry and Mössbauer Spectroscopy

, 2010
The underlying physics and analysis of Mössbauer spectra have been explained in detail in Chap. 4. In that chapter, the principles of how a spectrum is parameterized in terms of spin-Hamiltonian (SH) parameters and the physical origin of these SH ...
Petrenko, T., Neese, F., Frank Neese, Taras Petrenko   +3 more
core   +1 more source