Magnetic properties of Mn-doped ZnO powder and thin films

Autor:	Huai-Juan Meng, Xiuling Li, Guide Tang, H. J. Zhou, Xiao-Juan Ye, C. M. Zhen, D. L. Hou
Rok vydání:	2007
Předmět:	Materials science Mechanical Engineering Analytical chemistry Magnetic semiconductor Sputter deposition Coercivity Condensed Matter Physics Paramagnetism Magnetization Nuclear magnetic resonance Ferromagnetism Mechanics of Materials Sputtering General Materials Science Thin film
Zdroj:	Materials Science and Engineering: B. 138:184-188
ISSN:	0921-5107
DOI:	10.1016/j.mseb.2007.01.020
Popis:	Zn0.96Mn0.04O powder and thin films were prepared by standard solid-state reaction processes and radio-frequency (RF) magnetron sputtering. Magnetic measurements indicate that the powder is paramagnetic for temperatures above 3 K, while the thin films annealed in vacuum are ferromagnetic at room temperature with a transition temperature of about 400 K. The largest saturated magnetization (Ms) was found to be about 1.05 μB/Mn, while the coercive force was found to be 100 Oe at room temperature. The very different results for the powder and thin films indicate that growth conditions and defects play an important role in producing ferromagnetism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::724885e07951fc17a83cf0bdb8f6afed https://doi.org/10.1016/j.mseb.2007.01.020 Zobrazit plný text záznamu Full Text from ScienceDirect