Results 91 to 100 of about 1,365,150 (188)

Magnetic Structure of the High‐TN Antiferromagnet La0.5Sr3.5Fe3O7.5F2.6: A Temperature‐Dependent Mößbauer Spectroscopy and Neutron Diffraction Study

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
La0.5Sr3.5Fe3O7.5F2.6, a rare n = 3 Ruddlesden–Popper oxyfluoride, exhibits robust antiferromagnetism across a wide temperature range from 1.7 to 470 K. Temperature‐dependent neutron diffraction reveals an orthorhombic nuclear and a monoclinic magnetic structure, while Mößbauer spectroscopy shows persistent short‐range magnetic order up to 525 K.
Andy Bivour   +9 more
wiley   +1 more source

Nanostructural Studies by MÖssbauer Spectroscopy

open access: yes, 1994
Application of 57Fe MÖssbauer spectroscopy to the determination of magnetic structural parameters relevant to nanostructural studies is discussed.
Georgia C. Papaefthymiou
core   +1 more source

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

open access: yesJournal 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   +9 more
wiley   +1 more source

Magnetic and Structural Characterization of Mechanically Alloyed Fe50co50 Samples

open access: yesRevista de Ciencias, 2011
Samples of nominal composition Fe50Co50 were produced by mechanical alloying byusing a planetary ball mill and different milling times. The samples were studied via X-raydiffraction, Mössbauer spectroscopy, and X-ray photoelectron spectroscopy to ...
Germán A. Pérez Alcázar   +5 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
wiley   +1 more source

High pressure Mössbauer spectroscopy

open access: yes, 2007
790-794Pressure induces myriad changes in materials by bringing order/ disorder, by changing electronic hybridization and by inducing chemical reactions. High-pressure Mössbauer spectroscopy using Diamond Anvil Cell, a well recognized tool to investigate
Chandra, Usha
core  

TOPICS IN HETEROGENEOUS CATALYSIS VIEWED BY MÖSSBAUER SPECTROSCOPY

open access: yes, 1976
Quelques sujets dans la catalyse hétérogène étant particulièrement aptes pour être étudiés par application de spectroscopie Mössbauer, sont d'abord introduits et ensuite discutés avec référence aux exemples de la littérature.
J. A. DUMESIC
core   +1 more source

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

open access: yesJournal 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 and heat capacity studies of ErZnSn2

open access: yesNukleonika, 2017
Heat capacity results obtained for the intermetallic compound ErZnSn2 were re-analysed to also consider, apart from the classical Debye model, the anharmonicity of the crystal lattice and the proper set of Einstein modes.
Łątka Kazimierz   +4 more
doaj   +1 more source

Synchrotron-Radiation-Based Mössbauer Spectroscopy [PDF]

open access: yes, 2009
放射光でほぼ全てのメスバウアー吸収スペクトル測定が可能に - 元素を特定した電子構造や磁性の研究のプローブへ -. 京都大学プレスリリース. 2009-05-25.We have developed a new method that yields Mössbauer absorption spectra using synchrotron radiation (SR); this method is applicable for almost all Mössbauer nuclides ...
Seto, Makoto   +16 more
core   +1 more source

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