Magnetic properties of Fe-doped NiO nanoparticles

Autor:	L. Zhu, Yuko Ichiyanagi, T. Kondo, N. Sakai, H. Takeuchi, T. Miyasaka, T. Yanoh, K. Miike, A. Kurokawa, S. Yano, Kazuki Onuma
Rok vydání:	2013
Předmět:	Magnetization Lattice constant Materials science Condensed matter physics Ferromagnetism Non-blocking I/O Analytical chemistry General Physics and Astronomy Nanoparticle Magnetic semiconductor Coercivity Amorphous solid
Zdroj:	Journal of the Korean Physical Society. 63:716-718
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.63.716
Popis:	Ni1−xFexO (x = 0, 0.05, 0.1) nanoparticles with several nanometers encapsulated with amorphous SiO2 were prepared by our novel preparation method. A NiO single phase structure was confirmed using the X-ray diffraction measurements. It is considered that Ni ions are replaced by Fe ions because it is observed that the lattice constant decreases. The temperature dependence behavior of the magnetization revealed that the blocking temperature, TB, shifted from 17 to 57 K as the amount of Fe ions increased, and that below TB, ferromagnetic behaviors were exhibited. The coercive force, HC, increased from 0.8 to 1.5 kOe as the amount of Fe ions increased.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::67699a17e969ebf83cdb1e6c0ad5d5a0 https://doi.org/10.3938/jkps.63.716 Zobrazit plný text záznamu Full text from SpringerLink