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Unconventional spin-glass-like state in AgCo2V3O10, the novel magnetically frustrated material

Abstract : Single crystals of a new silver and-cobalt based vanadate AgCo2V3O10 were grown from a melted mixture. The crystal structure determination reveals that this new vanadate crystallizes in triclinic system with space group P (1) over bar. The structure of the filed compound is constructed from CoO6 octahedra and VO4 tetrahedra sharing edges and vertices leading to an open three-dimensional framework delimiting tunnels along [0 0 1], where the Ag cations are located. The bands observed in Raman spectrum were assigned to corresponding vibrations of the VO4 groups. DC and AC magnetization (susceptibility) measurements revealed the spin-glass (SG) - type transition below a frequency-dependent temperature T-f(H) that is nearly independent on the applied magnetic field. Magnetic field H > 10 kOe induces the spin glass-antiferromagnet. These observations brings AgCo2 V3O10 into the class of geometrically frustrated magnetic systems.
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Soumis le : vendredi 1 avril 2022 - 10:45:16
Dernière modification le : mercredi 28 septembre 2022 - 16:20:11

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Mohammed Hadouchi, Abderrazzak Assani, Mohamed Saadi, Yakov Kopelevich, Robson R. Da Silva, et al.. Unconventional spin-glass-like state in AgCo2V3O10, the novel magnetically frustrated material. Journal of Magnetism and Magnetic Materials, Elsevier, 2019, 491, ⟨10.1016/j.jmmm.2019.165623⟩. ⟨hal-03627230⟩



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