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Исследование Fe и Fe-Co нанотрубок в полимерных ионно-трековых Мембранахтезисы доклада
- Авторы: Русаков В.С., Кадыржанов К.К., Козловский А.Л., Киселева Т.Ю., Здоровец М.В., Фадеев М.С., Лукьянова Е.Н.
- Сборник: Сборник материалов XIV Международной конференции «Мессбауэровская спектроскопия и ее применения»
- Тезисы
- Год издания: 2016
- Издательство: Изд-во Казан. ун-та
- Местоположение издательства: Казань
- Первая страница: 82
- Последняя страница: 82
- Аннотация: Mössbauer spectroscopy with attraction data of scanning electron microscopy, energy dispersive analysis and X-ray diffraction studied iron and iron-cobalt nanostructures synthesized in polymer ion-track membranes. The obtained nanostructures are single-phase with a high degree of polycrystallinity Fe1-xCox (0 x1) nanotubes with a bcc structure with a length of 12 µm, diameter of 110+/-3 nm and a wall thickness of 17+/-2 nm. For Fe nanotubes is observed a random distribution of directions of magnetic moments of Fe atoms, and Fe-Co nanotubes – magnetic texture along the nanotubes axis. The average value of the angle between the magnetic moment and the axis of the nanotubes decreases with increase in the concentration of Co. Concentration dependences of hyperfine parameters are consistent with the data for massive polycrystalline samples. The substitution of Fe atom to the Co atom in the immediate environment of the Fe atom results in a significant increase of the hyperfine magnetic field Hn and a small decrease of the isomer shift . Revealed two mechanisms to the changes of Hn and with the change in the concentration of Co, carried out the separation of the contributions of these two mechanisms.
- Добавил в систему: Русаков Вячеслав Серафимович