| Автор | N Ayoub |
| Автор | M A Kobeissi |
| Автор | R W Chantrell |
| Автор | K O'Grady |
| Автор | J Popplewell |
| Дата выпуска | 1985-10-01 |
| dc.description | Magnetic and Mossbauer measurements have been used to study the superparamagnetic behaviour of a magnetic fluid containing iron particles. Electron micrographs show the particles to form a Gaussian distribution with median diameter D<sub>p</sub>=65 AA, sigma =12 AA whilst magnetic analysis gives the median diameter D<sub>vm</sub>=60+or-5 AA at 80K and D<sub>vm</sub>=55+or-5 AA at 300K. Superparamagnetic behaviour was evident for the magnetic measurements at both 80 and 300K. The Mossbauer spectrum at 86K contained two lines which were associated with the superparamagnetic iron core and the FeO coating. The FeO line showed no evidence of magnetic ordering when the coating was thin ( approximately=10 AA) but this was apparent when the coating thickness was increased by prolonged oxidation. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Magnetic and Mossbauer studies of finely dispersed iron particles |
| Тип | paper |
| DOI | 10.1088/0305-4608/15/10/017 |
| Print ISSN | 0305-4608 |
| Журнал | Journal of Physics F: Metal Physics |
| Том | 15 |
| Первая страница | 2229 |
| Последняя страница | 2235 |
| Аффилиация | N Ayoub; Dept. of Phys., Yarmouk Univ., Jordan |
| Аффилиация | M A Kobeissi; Dept. of Phys., Yarmouk Univ., Jordan |
| Аффилиация | R W Chantrell; Dept. of Phys., Yarmouk Univ., Jordan |
| Аффилиация | K O'Grady; Dept. of Phys., Yarmouk Univ., Jordan |
| Аффилиация | J Popplewell; Dept. of Phys., Yarmouk Univ., Jordan |
| Выпуск | 10 |
