کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1620831 1516388 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic structure of the quasi-two-dimensional compound CoTa2O6
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Magnetic structure of the quasi-two-dimensional compound CoTa2O6
چکیده انگلیسی

We report on a detailed investigation of magnetic properties of CoTa2O6 using several techniques: neutron and X-ray diffraction, specific-heat, magnetic susceptibility, and magnetization measurements. The compound shows quasi-two-dimensional behavior due to its layered structure of alternating Co–O and Ta–O planes. We find that all magnetic moments lie entirely in the Co–O planes, along easy axes determined by the orientations of oxygen octahedra that surround the Co ions. The easy axes in successive magnetic planes have relative orientations that differ by 90°. Antiferromagnetic ordering is observed below 6.6 K, with propagation vectors (±±1/4,1/4,1/4) associated to the two non-equivalent sets of Co2+ ions, whose magnetic moments are perpendicularly oriented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 491, Issues 1–2, 18 February 2010, Pages 41–44
نویسندگان
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