Identification of ε-Fe2O3 Nano-Phase in Borate Glasses Doped with Fe and Gd
Обзор
| Общее |
Язык:
Английский,
Жанр:
Обзор (Review),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Journal of Magnetism and Magnetic Materials
ISSN: 0304-8853
|
| Вых. Данные |
Год: 2016,
Том: 401,
Страницы: 880-889
Страниц
: 10
DOI:
10.1016/j.jmmm.2015.10.126
|
| Ключевые слова |
Electron magnetic resonance, Epsilon-Fe2O3, Magnetic circular dichroism, Magnetic nanoparticles |
| Авторы |
Ivanova O.S.
1
,
Ivantsov R.D.
1
,
Edelman I.S.
1
,
Petrakovskaja E.A.
1
,
Velikanov D.A.
1,2
,
Zubavichus Y.V.
3
,
Zaikovskii V.I.
4,5
,
Stepanov S.A.
6
|
| Организации |
| 1 |
L.V. Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russia
|
| 2 |
Siberian Federal University, 660036 Krasnoyarsk, Russia
|
| 3 |
NRC “Kurchatov Institute”, 123182 Moscow, Russia
|
| 4 |
Boreskov Institute of Catalysis, Siberian Branch of RAS, 630090 Novosibirsk, Russia
|
| 5 |
Novosibirsk State University, 630090 Novosibirsk, Russia
|
| 6 |
Vavilov State Optical Institute, All-Russia Research Center, 192371 Petersburg, Russia
|
|
Информация о финансировании (2)
|
1
|
Российский фонд фундаментальных исследований
|
14-02-01211
|
|
2
|
Совет по грантам Президента Российской Федерации
|
НШ-2886.2014.2
|
A new type of magnetic nanoparticles was revealed in borate glasses co-doped with low contents of iron and gadolinium. Structure and magnetic properties of the particles differ essentially from that of the α-Fe2O3, γ-Fe2O3, or Fe3O4 nanoparticles which were detected earlier in similar glass matrices. Transmission electron microscopy including STEM-HAADF and EDX, synchrotron radiation-based XRD, static magnetic measurements, magnetic circular dichroism, and electron magnetic resonance studies allow referring the nanoparticles to the iron oxide phase-ε-Fe2O3. Analysis of the data set has shown that it is Gd atoms that govern the process of nanoparticles’ nucleation and its incorporation into the particles in different proportions can be used to adjust their magnetic and magneto-optical characteristics