Journal of Siberian Federal University. Mathematics & Physics / Magnetic Ordering and Exchange Interactions of Kotoite Ni2Co(BO3)2 from First-principles Calculations

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. Prepublication
Authors
Sofronova, Svetlana; Chernyshev, Artem; Selyanina, Anna; Krylov, Aleksandr; Tislenko, Timofey
Contact information
Sofronova, Svetlana : Federal Research Center KSC SB RAS Krasnoyarsk, Russian Federation; OCRID: 0000-0003-3486-9874; Chernyshev, Artem: Federal Research Center KSC SB RAS Krasnoyarsk, Russian Federation; ; Selyanina, Anna : Federal Research Center KSC SB RAS Krasnoyarsk, Russian Federation; OCRID: 0000-0002-5461-9277; Krylov, Aleksandr : Federal Research Center KSC SB RAS Krasnoyarsk, Russian Federation: OCRID: 0000-0001-8949-0584; Tislenko, Timofey: Federal Research Center KSC SB RAS Krasnoyarsk, Russian Federation; OCRID: 0009-0004-5599-904X
Keywords
First-principles calculations; exchange interactions; kotoite; magnetic structure
Abstract

The first-principles calculations of the structural and magnetic properties of kotoite NiCo(BO3)2 have been carried out. The minimization of the lattice parameters shows the values to be in good agreement with the experimental data (the difference is less than 1%). The atomic coor- dinates have been calculated. Cobalt ions tend to occupy position 2a and nickel ions tend to occupy position 4f . The same magnetic cell as in Ni3B2O6 but quadrupled in size (2a × b × 2c) has the minimum exchange energy for Ni2Co(BO3)2. In Ni2Co(BO3)2, the magnetic moments are oriented along the b axis as in Co3B2O6

Pages
278–285
EDN
VUGORC
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/158128