Mössbauer Study of the Magnetic Transition in ϵ-Fe2O3 Nanoparticles Using Synchrotron and Radionuclide Sources Full article
| Journal |
Journal of Experimental and Theoretical Physics Letters (JETP Letters)
ISSN: 0021-3640 , E-ISSN: 1090-6487 |
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| Output data | Year: 2019, Volume: 110, Number: 9, Pages: 613-617 Pages count : 5 DOI: 10.1134/S0021364019210082 | ||||||
| Tags | NUCLEAR RESONANT SCATTERING; HIGH-TEMPERATURE; RAYS | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 17-12-01111 |
Abstract:
Nuclear γ-resonance experiments with energy and time resolved detection are carried out with ϵ-F2O3 nanoparticles and a 57Co(Rh) laboratory Mössbauer source of γ radiation and a 14.4125 keV synchrotron radiation source on the ID18 beamline (ESRF) in the temperature range of 4–300 K. Both methods show a tremendous increase in the hyperfine field in tetrahedrally coordinated iron positions during the magnetic transition in the range of 80–150 K. As a result, the splitting of the quantum beat peaks in the nuclear scattering spectra is observed in the time interval of 20–170 ns with a periodicity of ∼ 30 ns. In addition, the first quantum beat is slightly shifted to shorter times. A correlation between the quadrupole shift and the orbital angular momentum of iron in ϵ-F2O3 nanoparticles is found. The magnetic transition leads to the rotation of the magnetic moment in the tetrahedral positions of iron around the axis of the electric field gradient by an angle of 44°. © 2019, Pleiades Publishing, Inc.
Cite:
Knyazev Y.V.
, Chumakov A.I.
, Dubrovskiy A.A.
, Semenov S.V.
, Yakushkin S.S.
, Kirillov V.L.
, Martyanov O.N.
, Balaev D.A.
Mössbauer Study of the Magnetic Transition in ϵ-Fe2O3 Nanoparticles Using Synchrotron and Radionuclide Sources
Journal of Experimental and Theoretical Physics Letters (JETP Letters). 2019. V.110. N9. P.613-617. DOI: 10.1134/S0021364019210082 WOS Scopus РИНЦ AN OpenAlex
Mössbauer Study of the Magnetic Transition in ϵ-Fe2O3 Nanoparticles Using Synchrotron and Radionuclide Sources
Journal of Experimental and Theoretical Physics Letters (JETP Letters). 2019. V.110. N9. P.613-617. DOI: 10.1134/S0021364019210082 WOS Scopus РИНЦ AN OpenAlex
Original:
Князев Ю.В.
, Чумаков А.И.
, Дубровский А.А.
, Семенов С.В.
, Якушкин С.С.
, Кириллов В.Л.
, Мартьянов О.Н.
, Балаев Д.А.
Мессбауэровские исследования магнитного перехода в наночастицах ǫ-Fe2O3 на синхротронном и радионуклидном источниках
Письма в Журнал экспериментальной и теоретической физики. 2019. Т.110. №9. С.614-619. DOI: 10.1134037027419210082 РИНЦ
Мессбауэровские исследования магнитного перехода в наночастицах ǫ-Fe2O3 на синхротронном и радионуклидном источниках
Письма в Журнал экспериментальной и теоретической физики. 2019. Т.110. №9. С.614-619. DOI: 10.1134037027419210082 РИНЦ
Dates:
| Submitted: | Sep 26, 2019 |
| Accepted: | Oct 4, 2019 |
| Published print: | Nov 1, 2019 |
| Published online: | Jan 4, 2020 |
Identifiers:
| Web of science: | WOS:000511164800008 |
| Scopus: | 2-s2.0-85077637717 |
| Elibrary: | 43226246 |
| Chemical Abstracts: | 2020:35654 |
| OpenAlex: | W2998463902 |