Magnetic properties of LaCo.sub.12./sub. B.sub.6./sub. compound as probed by neutron diffraction and by magnetization study under high pressures

0427179 - FZÚ 2015 RIV NL eng J - Journal Article
Diop, L.V.B. - Arnold, Zdeněk - Isnard, O. - Kamarád, Jiří
Magnetic properties of LaCo₁₂ B₆ compound as probed by neutron diffraction and by magnetization study under high pressures.
Journal of Alloys and Compounds. Roč. 593, APR (2014), s. 163-168. ISSN 0925-8388. E-ISSN 1873-4669
R&D Projects: GA ČR GA202/09/1027
Institutional support: RVO:68378271
Keywords : pressure effect * borides * magnetic properties * neutron diffraction
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.999, year: 2014

The magnetic properties have been studied by magnetization measurements and the crystal and magnetic structure investigated by neutron diffraction. It is shown that LaCo12B6 compound exhibits an incommensurate conical type magnetic structure. Significantly different magnetic moments have been observed on the two Co crystal sites. The ambient pressure data are compared to that of YCo12B6 isotype and Landau coefficients have been derived from the magnetization curves for both compounds as well as their temperature dependence. The LaCo12B6 compound undergoes a transition from ordered to paramagnetic state at 160 K. The volume dependence of intrinsic magnetic properties of the LaCo12B6 compound has been determined by studies under hydrostatic pressure up to 10 kbar in temperature range 5–200 K.
Permanent Link: http://hdl.handle.net/11104/0232778