Michael S. Platunov, Natalya B. Ivanova, Natalya V. Kazak, Leonard N. Bezmaternykh, Alexander D. Vasiliev, Evgeny V. Eremin, Sergey G. Ovchinnikov, “Crystal structure and magnetism of <nobr>$\mathrm{Co}_{2-x}\mathrm{Ni}_x\mathrm{B_2O_5}$</nobr> pyroborate”, J. Sib. Fed. Univ. Math. Phys., 2011, Volume 4, Issue 3,Pages <nobr>298

This article is cited in 2 papers

Crystal structure and magnetism of $\mathrm{Co}_{2-x}\mathrm{Ni}_x\mathrm{B_2O_5}$ pyroborate

Michael S. Platunov^ab, Natalya B. Ivanova^cd, Natalya V. Kazak^b, Leonard N. Bezmaternykh^b, Alexander D. Vasiliev^b, Evgeny V. Eremin^b, Sergey G. Ovchinnikov^abd

^a Aerospace University, Krasnoyarsk, Russia
^b Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russia
^c Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
^d Siberian Federal University, Krasnoyarsk, Russia

Abstract: The high quality single crystals of $\mathrm{Co_2B_2O_5}$:$\mathrm{Ni}$ were synthesized. The detail study of crystal structure using single-crystal X-ray diffraction was carried out. The monoclinic symmetry was found ($\mathrm{P2_1/c}$ space group). The magnetization and magnetic susceptibility measurements have shown antiferromagnetic behavior below $T_N=47$ K and paramagnetic temperature $\theta=43$ K. The effective magnetic moment per magnetic ion was $3.49\,\mu_B$, which points out the divalent and high-spin state of $\mathrm{Co}$ and $\mathrm{Ni}$ ions.

Keywords: transition metal borates, solid state reaction, magnetic susceptibility, magnetic frustration.

UDC: 537.6+548.7

Received: 10.01.2011
Received in revised form: 10.03.2011
Accepted: 20.04.2011

Language: English