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

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:491

Article

Hadouchi, Mohammed¹  Assani, Abderrazzak¹  Saadi, Mohamed¹  Kopelevich, Yakov²  da Silva, Robson R.²  Lahmar, Abdelilah³  Bouyanfif, Houssny³  El Marssi, Mimoun³  El Ammari, Lahcen¹ 

[1] Mohammed V Univ Rabat, Fac Sci, Ctr Sci Mat, Lab Chim Appl Mat, Ave Ibn Battouta,BP 1014, Rabat, Morocco

[2] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil

[3] Univ Picardie Jules Verne, LPMC, Amiens, France

关键词: Vanadate;    Single crystal X-ray diffraction;    Magnetization and ac susceptibility measurements;    Spin-glass-like state;    Time relaxation magnetization;   

DOI  :  10.1016/j.jmmm.2019.165623

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free