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Magnetite nanoparticles with various Curie temperaturesтезисы доклада
- Авторы: Nikiforov Vladimir N., Ignatenko Andrey N., Irkhin Valentin Yu
- Сборник: Proc International Conference «Spin physics, spin chemistry and spin technology
- Серия: Spin physics, spin chemistry and spin technology
- Том: 1
- Тезисы
- Год издания: 2015
- Место издания: SPCT С.-Петербург
- Первая страница: 128
- Последняя страница: 128
- Аннотация: The water-based magnetite sols were prepared by sol-gel technique. Curie points of the samples under studying SQUID magnetization vs temperature data at low magnetic fields (20 mT) applied and the second derivative of thermal dependences of saturation magnetization Js(T) were obtained. Thermomagnetic curves Js(T) were measured by Curie balance in the magnetic field 7 T in the temperature region 20-500 0C. Both the methods prove decrease of Curie temperature at low value of magnetic moment per nanoparticle, i.e. while lowering number of magnetic ions. The size effects in magnetic properties were studied by using Monte Carlo calculation.
- Добавил в систему: Никифоров Владимир Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Краткий текст | Magnetite_nanoparticles_with_various_Curie_temperatures.pdf | 291,6 КБ | 18 февраля 2016 [Nikiforov] |