scholarly journals Investigation of Magnetic Ordering in RCo12B6 (R = Y, Nd) by 57Fe Mössbauer Spectroscopy

1993 ◽  
Vol 46 (5) ◽  
pp. 679 ◽  
Author(s):  
JM Cadogan ◽  
SJ Campbell ◽  
XL Zhao ◽  
E Wu
Keyword(s):  
Basal Plane ◽  
Room Temperature ◽  
Mössbauer Spectra ◽  
57Fe Mössbauer Spectroscopy ◽  
Magnetic Ordering ◽  
Spin Reorientation ◽  
57Fe Mössbauer ◽  
Mossbauer Spectra ◽  
57Fe Mossbauer Spectroscopy ◽  
Increasing Temperature

Mossbauer spectra of YC012B6 and NdCo12B6 doped with enriched 57Fe have been obtained at various temperatures between 4�2 K and room temperature. The spectrum of YC012B6 at 4�2 K indicates that the Co sublattice orders in the crystallographic basal plane. NdCo12B6 orders along or close to the crystallographic c-axis at 4�2 K and undergoes a spin-reorientation with increasing temperature until at ~55 K the magnetisation lies in or near the basal plane.

Electronic and magnetic states of Fe ions in the Co2FeBO5

2021 ◽  
Author(s):  
Natalia Kazak ◽  
Yurii V. Knyazev ◽  
Vyacheslav Zhandun ◽  
Juan Bartolomé ◽  
Ana Arauzo ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Room Temperature ◽  
Mössbauer Spectra ◽  
Mossbauer Spectroscopy ◽  
57Fe Mössbauer Spectroscopy ◽  
57Fe Mössbauer ◽  
Mossbauer Spectra ◽  
57Fe Mossbauer Spectroscopy ◽  
Magnetic States ◽  
Fe Ions

The ludwigite Co2FeBO5 has been studied experimentally using 57Fe Mössbauer spectroscopy and theoretically by means of the DFT+GGA calculations. The room-temperature Mössbauer spectra are composed of four quadrupole doublets corresponding...

Magnetic structures of Fe32+δGe33As2 and Fe32+δ′Ge35−xPx intermetallic compounds: a neutron diffraction and 57Fe Mössbauer spectroscopy study

2021 ◽  
Vol 50 (6) ◽  
pp. 2210-2220
Author(s):  
R A. Khalaniya ◽  
A V. Sobolev ◽  
V Yu. Verchenko ◽  
A A. Tsirlin ◽  
A Senyshyn ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Intermetallic Compounds ◽  
Mossbauer Spectroscopy ◽  
57Fe Mössbauer Spectroscopy ◽  
Spin Reorientation ◽  
Spectroscopy Study ◽  
Magnetic Structures ◽  
57Fe Mössbauer ◽  
57Fe Mossbauer Spectroscopy ◽  
Antiferromagnetic Ordering

Fe32.1Ge33As2 and Fe32.5Ge32P3 demonstrate complex commensurate antiferromagnetic ordering below 125 K accompanied by a spin reorientation upon further cooling.

scholarly journals Mössbauer Study of Weathered H-meteorite from the Desert of Oman

2020 ◽  
Vol 25 (1) ◽  
pp. 48
Author(s):  
Ahmed D. Al-Rawas ◽  
Abbasher M. Gismelseed ◽  
Subhi Nasir ◽  
Ali A. Yousif ◽  
Mohamed E. Elzain ◽  
...  
Keyword(s):  
Mössbauer Spectra ◽  
57Fe Mössbauer Spectroscopy ◽  
Ordinary Chondrites ◽  
Mössbauer Study ◽  
Magnetic Phases ◽  
Silicate Minerals ◽  
Mossbauer Spectra ◽  
57Fe Mossbauer Spectroscopy ◽  
H Chondrites ◽  
Terrestrial Age

A number of meteorites from the desert of Oman, classified as H-chondrites, with known and unknown ages, were studied by using 57Fe Mössbauer spectroscopy to determine their Fe3+-bearing compositions. Mössbauer spectra measured at 78 K were composed of paramagnetic doublets superimposed on magnetic sextets. The doublets are assigned to the silicate minerals olivine and pyroxene and Fe3+ phases. The magnetic sextets in most samples showed the presence of at least three magnetic phases, namely troilite, magnetite and kamacite, which commonly exist in most ordinary chondrites. The relative amounts (area %) of Fe3+ in the known-age meteorites, determined from the Mössbauer spectra, were plotted against their terrestrial ages. The plot was used to estimate the terrestrial ages of meteorites with unknown terrestrial age.

57Fe-Mößbauer-Messungen an μ3-RP-verbrückten heterometallischen Clustern μ3-RP-(C5H5(CO)2Mn)Fe2(CO)6Ln (n = 0,1, 2; L - CO, R3X mit X = P, As, Sb und R = Ph, OPh, OMe) / 57Fe Mößbauer Spectra of //3-RP-Bridged Heterometallic Clusters μ3-RP-(C5H5(CO)2Mn)Fe(CO)6Ln (n = 0, 1, 2; L = CO, R3X with X = P, As, Sb and R = Ph, OPh, OMe)

1982 ◽  
Vol 37 (5) ◽  
pp. 610-613 ◽  
Author(s):  
Hartwig Schäfer-Stahl ◽  
Josef Schneider ◽  
Gottfried Huttner
Keyword(s):  
Room Temperature ◽  
Mössbauer Spectra ◽  
Heterometallic Clusters ◽  
Iron Clusters ◽  
Lattice Constants ◽  
57Fe Mössbauer ◽  
Mossbauer Spectra ◽  
Mössbauer Parameters

Room-temperature Mössbauer spectra are reported for μ3-RP-bridged heterometallic iron clusters of the type μ3-RP-(C5H5(CO)2Mn)Fe2(CO)6Ln. The Mössbauer parameters of these clusters show that the structures are in agreement with the lattice constants of low-spin hetero manganese-iron clusters

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