Syntheses, structure and magnetic properties of two vanadate garnets Ca5M4V6O24 (M=Co, Ni)

• New type of garnet vanadates Ca5M4V6O24 (M=Co, Ni) are synthesized by a high-temperature solid-state reaction.
• Structural features are confirmed by single crystal samples.
• Magnetic behaviors are firstly investigated in the systems.

Two vanadate compounds Ca5M4V6O24 (M=Co, Ni) have been synthesized by a high-temperature solid-state reaction. The compounds are found to crystallize in the cubic system with a space group Ia-3d, which exhibit a typical garnet structural framework. Magnetic measurements show that Ca5M4V6O24 (M=Co, Ni) exhibit similar magnetic behaviors, in which Ca5Co4V6O24 possesses an antiferromagnetic ordering at TN=~6 K while Ca5Ni4V6O24 shows an antiferromagnetic ordering at TN=~7 K.

Garnet vanadate compounds Ca5M4V6O24 (M=Co, Ni) have been synthesized by a high-temperature solid-state reaction. Structural features and magnetic behaviors are also investigated.Figure optionsDownload as PowerPoint slide