scholarly journals Hyperfine structure of [57Fe]iron in the Mössbauer spectrum of the high-potential iron protein from Chromatium

1970 ◽  
Vol 119 (2) ◽  
pp. 289-291 ◽  
Author(s):  
M. C. W. Evans ◽  
D. O. Hall ◽  
C. E. Johnson
Keyword(s):  
Hyperfine Structure ◽  
Mössbauer Spectra ◽  
High Potential ◽  
Magnetic Hyperfine ◽  
Mossbauer Spectrum ◽  
Hyperfine Fields ◽  
Iron Protein ◽  
57Fe Mössbauer ◽  
Mossbauer Spectra ◽  
Magnetic Hyperfine Structure

The magnetic hyperfine structure observed in the 57Fe Mössbauer spectra of the high-potential iron protein from Chromatium shows that the iron atoms are inequivalent in pairs, with hyperfine fields of 121 and 90kG.

The influence of crystallinity on the Mössbauer spectrum of lepidocrocite

1984 ◽  
Vol 48 (349) ◽  
pp. 507-511 ◽  
Author(s):  
Enver Murad ◽  
Udo Schwertmann
Keyword(s):  
Quadrupole Splitting ◽  
Mössbauer Spectra ◽  
Magnetic Ordering ◽  
Particle Morphology ◽  
Magnetic Hyperfine ◽  
Mossbauer Spectrum ◽  
Neel Temperature ◽  
Hyperfine Fields ◽  
Néel Temperature ◽  
Mossbauer Spectra

AbstractParticle morphology can result in very pronounced effects of crystallinity on the Mössbauer spectra of lepidocrocite. Such effects can noticeably increase the quadrupole splitting of poorly crystallized paramagnetic lepidocrocites, making it necessary to fit two doublets of different quadrupole splittings to Mössbauer spectra of such samples, and may lower the onset of magnetic ordering from the bulk Néel temperature of 77 ±1 K to about 50 K.At 4.2 K, distributions of magnetic hyperfine fields with a limiting upper field of 460 kOe are observed. The contributions of lower fields to such distributions increase with decreasing crystallinity, producing asymmetrically broadened resonant lines.

scholarly journals Interpretation of the Mossbauer Spectra of the High-Potential Iron Protein from Chromatium

1980 ◽  
Vol 104 (1) ◽  
pp. 289-296 ◽  
Author(s):  
Peter MIDDLETON ◽  
Dominic P. E. DICKSON ◽  
Charles E. JOHNSON ◽  
James D. RUSH
Keyword(s):  
Mössbauer Spectra ◽  
High Potential ◽  
Iron Protein ◽  
Mossbauer Spectra

Magnetic hyperfine structure of 125Te in ferromagnetic Pd2MnSb

1975 ◽  
Vol 54 (4) ◽  
pp. 293-294 ◽  
Author(s):  
P. Boolchand ◽  
M. Tenhover ◽  
S. Jha ◽  
G. Langouche ◽  
B.B. Triplett ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Magnetic Hyperfine ◽  
Magnetic Hyperfine Structure

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...

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