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Электронный каталог: Balagurov, A. M. - Tetragonal Phases in Fe-Ga Alloys: A Quantitative Study
Balagurov, A. M. - Tetragonal Phases in Fe-Ga Alloys: A Quantitative Study
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Статья
Автор: Balagurov, A. M.
Physical Review Materials [Electronic resource]: Tetragonal Phases in Fe-Ga Alloys: A Quantitative Study
б.г.
ISBN отсутствует
Автор: Balagurov, A. M.
Physical Review Materials [Electronic resource]: Tetragonal Phases in Fe-Ga Alloys: A Quantitative Study
б.г.
ISBN отсутствует
Статья
Balagurov, A.M.
Tetragonal Phases in Fe-Ga Alloys: A Quantitative Study / A.M.Balagurov, A.S.Sohatsky, S.V.Sumnikov, [a.o.] // Physical Review Materials [Electronic resource]. – 2024. – Vol.8, No.7. – P. 073604. – URL: https://doi.org/10.1103/PhysRevMaterials.8.073604. – Bibliogr.: 48.
Currently, the dominant model for the formation of enhanced magnetostriction of Fe-Ga alloys is based on the assumption of the presence of microscopic inclusions with a tetragonal 𝐿60 structure in the cubic matrix of the alloy. However, no evidence for the presence of this phase in the bulk of the alloys in amounts sufficient to have a noticeable effect on the magnitude of magnetostriction has been obtained so far. To test this hypothesis, a detailed scanning of the reciprocal space of Fe81Ga19Tb0.1 and Fe73Ga27 single crystals was carried out at ESRF at high photon flux stations. In particular, it was possible to reliably record superstructure diffraction peaks, the intensity of which was at a level of 2×10−6 from the intensity of the fundamental peaks. Nevertheless, neither the presence of superstructure diffraction peaks obviously belonging to the 𝐿60 phase nor the tetragonal splitting of the fundamental diffraction peaks into components, which could indicate the presence of this phase in the samples, was detected. Similar results were obtained using complementary methods (electron and neutron diffraction). Based on the performed analysis of the background level in the places of the expected positions of superstructure peaks of the 𝐿60 phase, it was found that the volume fraction of this phase in the Fe81Ga19Tb0.1 alloy cannot exceed 0.2 %. The presence of a previously discovered 𝑋 phase with hexagonal or orthorhombic symmetry in a crystal with 27 at. % Ga was confirmed.
ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 36 - Физика твердого тела$
Спец.(статьи,препринты) = С 342 г1 - Замедление и диффузия нейтронов. Дифракция
Balagurov, A.M.
Tetragonal Phases in Fe-Ga Alloys: A Quantitative Study / A.M.Balagurov, A.S.Sohatsky, S.V.Sumnikov, [a.o.] // Physical Review Materials [Electronic resource]. – 2024. – Vol.8, No.7. – P. 073604. – URL: https://doi.org/10.1103/PhysRevMaterials.8.073604. – Bibliogr.: 48.
Currently, the dominant model for the formation of enhanced magnetostriction of Fe-Ga alloys is based on the assumption of the presence of microscopic inclusions with a tetragonal 𝐿60 structure in the cubic matrix of the alloy. However, no evidence for the presence of this phase in the bulk of the alloys in amounts sufficient to have a noticeable effect on the magnitude of magnetostriction has been obtained so far. To test this hypothesis, a detailed scanning of the reciprocal space of Fe81Ga19Tb0.1 and Fe73Ga27 single crystals was carried out at ESRF at high photon flux stations. In particular, it was possible to reliably record superstructure diffraction peaks, the intensity of which was at a level of 2×10−6 from the intensity of the fundamental peaks. Nevertheless, neither the presence of superstructure diffraction peaks obviously belonging to the 𝐿60 phase nor the tetragonal splitting of the fundamental diffraction peaks into components, which could indicate the presence of this phase in the samples, was detected. Similar results were obtained using complementary methods (electron and neutron diffraction). Based on the performed analysis of the background level in the places of the expected positions of superstructure peaks of the 𝐿60 phase, it was found that the volume fraction of this phase in the Fe81Ga19Tb0.1 alloy cannot exceed 0.2 %. The presence of a previously discovered 𝑋 phase with hexagonal or orthorhombic symmetry in a crystal with 27 at. % Ga was confirmed.
ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 36 - Физика твердого тела$
Спец.(статьи,препринты) = С 342 г1 - Замедление и диффузия нейтронов. Дифракция