Synthesis and Magnetic Properties of CuCr1.65Se4 Nanoparticles

E. Maciążeka, J. Panekb, M. Kubisztalb, M. Karolusb, T. Grońc and H. Dudac aUniversity of Silesia, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland bUniversity of Silesia, Institute of Material Science, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland cUniversity of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland

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CuCr1.65Se4 nanoparticles crystallize in the monoclinic Cr2Se3-type structure of the space group I2/m. The average crystallite size basing on the line broadening is less than 10 nm. With decrease of the size of grains a change from ferromagnetic to ferrimagnetic order, a lack of the magnetization saturation and a strong spin-orbit coupling visible in the large value of the Landé factor gχ = 2.72 are observed. The change in magnetic order is caused by the change of the crystalline symmetry from the cubic phase to monoclinic one.

DOI: 10.12693/APhysPolA.126.1137 PACS numbers: 75.50.Gg, 75.50.Tt, 81.10.Jt