Fe-doped La0.5Sr0.5TiO3−δ nanoparticles: A diluted magnetic oxide system

Santi Maensiri, Kwanruthai Wongsaprom, Ekaphan Swatsitang, Supapan Seraphin

doi:10.1063/1.2786674

Fe-doped La0.5Sr0.5TiO3−δ nanoparticles: A diluted magnetic oxide system

DOI PDF 被引用文献2件

Santi Maensiri

Khon Kaen University Integrated Nanotechnology Research Center (INRC) and Small and Strong Materials Group (SSMG), Department of Physics, Faculty of Science, , Khon Kaen 40002, Thailand
Kwanruthai Wongsaprom

Khon Kaen University Integrated Nanotechnology Research Center (INRC) and Small and Strong Materials Group (SSMG), Department of Physics, Faculty of Science, , Khon Kaen 40002, Thailand
Ekaphan Swatsitang

Khon Kaen University Integrated Nanotechnology Research Center (INRC) and Small and Strong Materials Group (SSMG), Department of Physics, Faculty of Science, , Khon Kaen 40002, Thailand
Supapan Seraphin

The University of Arizona Department of Materials Science and Engineering, , Tucson, Arizona 85721, USA

この論文をさがす

CiNii Books

説明

<jats:p>We report room-temperature ferromagnetism in ∼11.4–14.6nm nanoparticles of La0.5Sr0.5Ti0.985Fe0.015O3−δ. Nanoparticles of undoped and Fe-doped samples were synthesized by a polymerized complex method and were characterized using x-ray diffraction, transmission electron microscopy, and vibrating-sample magnetometer. The undoped samples exhibit a diamagnetic behavior, whereas the Fe-doped samples are ferromagnetic having the specific magnetizations of 0.041–0.101emu∕g at 10kOe. Our results indicate that the ferromagnetic property of La0.5Sr0.5Ti0.985Fe0.015O3−δ system is intrinsic and is not a result of any secondary magnetic phase or cluster formation. The finding of room-temperature ferromagnetism in this system would stimulate further interest in the area of diluted magnetic oxides.</jats:p>