Lattice Dynamics of Ni<sub>3-x</sub>Co<sub>x</sub>B<sub>2</sub>O<sub>6</sub> Solid Solutions
Svetlana N. Sofronova,
Maksim S. Pavlovskii,
Svetlana N. Krylova,
Alexander N. Vtyurin,
Alexander S. Krylov
Affiliations
Svetlana N. Sofronova
Kirensky Institute of Physics of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
Maksim S. Pavlovskii
Kirensky Institute of Physics of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
Svetlana N. Krylova
Kirensky Institute of Physics of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
Alexander N. Vtyurin
Kirensky Institute of Physics of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
Alexander S. Krylov
Kirensky Institute of Physics of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
On the one hand, Ni3-xCoxB2O6 solid solutions are promising anode materials for lithium batteries, and on the other hand, they have antiferromagnetic properties. This study examines the lattice dynamics of Ni3-xCoxB2O6 solid solutions for x = 0, 1, 2, 3 by means of quantum chemistry and Raman spectroscopy. The vibrational spectra of the compound NiCo2B2O6 have been studied using the polarized Raman spectroscopy method. Good agreement was found between the theoretical and experimental results. As expected, the largest change in frequencies was observed in the modes where the vibrations of the metal ion had a large amplitude. The substitution of cobalt by nickel does not lead to the appearance of soft modes. This fact indicates that the structures of the solid solutions are stable.
