Effect of Nitrogenation and Hydrogenation on the Magnetic Properties and Structure of the Sm2Fe17 Alloy: Analysis of XMCD Data | Sciact - CRIS-система Института катализа

Effect of Nitrogenation and Hydrogenation on the Magnetic Properties and Structure of the Sm2Fe17 Alloy: Analysis of XMCD Data Научная публикация

Журнал

Journal of Experimental and Theoretical Physics Letters (JETP Letters)
ISSN: 0021-3640 , E-ISSN: 1090-6487

Вых. Данные

Год: 2018, Том: 107, Номер: 4, Страницы: 228-232 Страниц : 5 DOI: 10.1134/s0021364018040082

Ключевые слова

EARTH IRON NITRIDES; RARE-EARTH; DICHROISM; SERIES

Авторы

Menushenkov A.P. ¹ , Savchenko A.G. ² , Ivanov V.G. ¹ , Ivanov A.A. ¹ , Shchetinin I.V. ² , Menushenkov V.P. ² , Rudnev I.A. ¹ , Rafal’skii A.V. ² , Zhukov D.G. ² , Platunov M. ³ , Wilhelm F. ³ , Rogalev A. ³

Организации

1	National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409 Russia
2	National University of Science and Technology MISIS, Moscow, 119049 Russia
3	European Synchrotron Radiation Facility (ESRF), CS40220, F-38043 Grenoble Cedex 9, France

Changes in the local magnetic and structural properties of Sm2Fe17 alloys at nitrogenation and hydrogenation of samples have been studied by the X-ray magnetic circular dichroism (XMCD) technique at the Fe K absorption edge and Sm L (3) absorption edge using synchrotron radiation. The results have been discussed in comparison with X-ray diffraction data and macroscopic vibration magnetometry measurements. The observed changes in XMCD spectra indicate a noticeable effect of nitrogenation on the local magnetic properties of sublattices of both iron and samarium, whereas hydrogenation of samples makes a small effect. The mentioned effects have been analyzed and discussed in terms of the effect of nitrogen (N) and hydrogen (H) interstitial atoms on Sm 5d and Fe 4p electronic states. The effect of nitrogenation is larger than the effect of hydrogenation because the volume expansion of the crystal lattice of initial Sm2Fe17 in the case of nitrogenation is larger than that in the case of hydrogenation. The studied local magnetization curves for samarium and iron sublattices in magnetic fields up to 17 T also indicate a strong increase in the magnetocrystalline anisotropy at nitrogenation.

Menushenkov A.P. , Savchenko A.G. , Ivanov V.G. , Ivanov A.A. , Shchetinin I.V. , Menushenkov V.P. , Rudnev I.A. , Rafal’skii A.V. , Zhukov D.G. , Platunov M. , Wilhelm F. , Rogalev A.
Effect of Nitrogenation and Hydrogenation on the Magnetic Properties and Structure of the Sm2Fe17 Alloy: Analysis of XMCD Data
Journal of Experimental and Theoretical Physics Letters (JETP Letters). 2018. V.107. N4. P.228-232. DOI: 10.1134/s0021364018040082 WOS Scopus РИНЦ CAPlus OpenAlex

Менушенков А.П. , Савченко А.Г. , Иванов В.Г. , Иванов А.А. , Щетинин И.В. , Менушенков В.П. , Руднев И.А. , Рафальский А.В. , Жуков Д.Г. , Платунов M. , Вилхельм Ф. , Рогалев А.
Влияние процессов азотирования и гидрирования на магнитные свойства и структуру сплава Sm2Fe17: анализ XMCD данных
Письма в Журнал экспериментальной и теоретической физики. 2018. Т.107. №4. С.232-236. DOI: 10.7868/S0370274X18040057 РИНЦ OpenAlex

Поступила в редакцию:	1 дек. 2017 г.
Принята к публикации:	20 дек. 2017 г.
Опубликована в печати:	1 февр. 2018 г.
Опубликована online:	24 апр. 2018 г.

Web of science:	WOS:000430851700005
Scopus:	2-s2.0-85061979772
РИНЦ:	38651078
Chemical Abstracts:	2018:828666
OpenAlex:	W2802356777

БД	Цитирований
Web of science	3
Scopus	3
OpenAlex	2