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Crystal structure and magnetic properties of Mn substituted ludwigite Co3O2BO3 |
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| Authors: | Yu.V. KnyazevN.B. Ivanova N.V. Kazak M.S. PlatunovL.N. Bezmaternykh D.А. Velikanov А.D. Vasiliev S.G. Ovchinnikov G.Yu. Yurkin |
| Affiliation: | a Siberian Federal University, Kirensky str. 26, 660074 Krasnoyarsk, Russia b Krasnoyarsk State Agrarian University, Mira str. 90, 660049 Krasnoyarsk, Russia c L.V. Kirensky Institute of Physics, SB of RAS, Akademgorodok, 660036 Krasnoyarsk, Russia d Siberian State Aerospace University, Krasnoyarskii rabochii str. 31, 660036 Krasnoyarsk, Russia |
| Abstract: | The needle shape single crystals Co3−x MnxO2BO3 with ludwigite structure have been prepared. According to the X-ray diffraction data the preferable character of distinct crystallographic positions occupation by Mn ions is established. Magnetization field and temperature dependencies are measured. Paramagnetic Curie temperature value Θ=−100 K points out the predominance of antiferromagnetic interactions. Spin-glass magnetic ordering takes the onset at TN=41 K. The crystallographic and magnetic properties of Co3O2BO3:Mn are compared with the same for the isostructural analogs Co3O2BO3 and CoO2BO3:Fe. |
| Keywords: | Transition metal oxyborate Distinct crystallographic position Spin glass magnetic ordering |
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