The Origin of the Magnetic and Electric Dipole Moments of Ni 2+ in NiCr 2 O 4

Condensed Matter

article

Mikhail Eremin¹  Kirill Vasin¹ 

[1] Institute of Physics, Kazan Federal University

关键词: magnetodielectric effect;    spin–orbit coupling;    crystal field;   

DOI  :  10.3390/condmat8010023

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

The energy level schema of the ground term of the nickel ion in NiCr 2O 4 was calculated. The parameters of the interaction with the electric field were determined, and the distribution pattern of the electric dipole moments over different positions of nickel in the unit cell was calculated. The model of the NiCr 2O 4 magnetoelectric structure at T < T c was constructed taking into account the data on neutron scattering and the results of the electric polarization measurements. The origin of the magnetodielectric effect was attributed to the peculiarities of the ground state of the nickel ion.

【 授权许可】

CC BY