Investigation of the critical (H–T)-parameters for the state of the BaO·6Fe2O3 nanocrystal system

Autor: Z. V. Golubenko, Z.I Sizova, L. P. Ol’khovik, T. G. Kuz'micheva
Rok vydání: 1998
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. 183:181-184
ISSN: 0304-8853
DOI: 10.1016/s0304-8853(97)01058-5
Popis: The field and temperature dependences are studied on thermally demagnetized powder samples of BaO·6Fe 2 O 3 with randomly oriented particles. New aspects of magnetic behaviour of the small-particle system have been revealed. The ( H – T ) diagram which reflects the role of the temperature and field factors in the realization of three different magnetic states, the superparamagnetic included, is obtained in the temperature range of 300 K– T c .
Databáze: OpenAIRE