A calculation of exchange interactions and electronic structure of nickel ferrite

Author

Zuo, Xu ; Yan, Shaolin ; Barbiellini, B. ; Harris, Vincent ; Vittoria, Carnine

Author_Institution

Coll. of Inf. Tech. Sci., Nankai Univ., Tianjin, China

fYear

2005

fDate

4-8 April 2005

Firstpage

1495

Lastpage

1496

Abstract

A semi-first principle approach was applied in this study to calculate the exchange interactions and electronic structure of nickel ferrite. From calculated density of states and exchange interactions, it implied that the charge transfer nature of Ni²⁺ ion is stronger than Fe³⁺ ion and the exchange interaction between Fe³⁺ and Ni²⁺ ions is stronger than the exchange interaction between Fe³⁺ ions. Also, this predicted that nickel ferrite is a good insulator with a band gap of 5 eV.

Keywords

ab initio calculations; charge exchange; electronic density of states; energy gap; exchange interactions (electron); ferrites; nickel compounds; Fe³⁺ ion; Ni²⁺ ion; NiFe₂O₄; band gap; charge transfer; density of states; electronic structure; exchange interactions; insulator; nickel ferrite; semifirst principle approach; Charge transfer; Educational institutions; Elementary particle exchange interactions; Ferrites; Hafnium; Magnetic materials; Manganese; Nickel; Orbital calculations; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464177

Filename

1464177