relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1807/
title: Room-temperature ferromagnetism in Fe-doped wide band gap ferroelectric Bi0.5K0.5TiO3 nanocrystals
creator: Dang, Duc Dung
creator: Duong, Van Thiet
creator: Dorj, Odkhuuc
creator: Le, Viet Cuong
creator: Nguyen, Hoang Tuan
creator: Sunglae, Cho
subject: Engineering Physics
description: We reported the room-temperature ferromagnetism in iron doped Bi0.5K0.5TiO3 nanocrystals. The reduction of band gap from 3.31 eV to 2.27 eV was obtained after introduction of iron to Bi0.5K0.5TiO3 with concentration up to 7 mol%. The first-principles density function theory (DFT) calculations indicate that the reduction of band gap is due to the presence of conduction bands of iron, and the ferromagnetism in iron-doped Bi0.5K0.5TiO3 samples was explained by the exchange splitting between spin subbands through crystal field theory. This method may provide an available way to get single-phase multiferroics and resolve the problem of the scarcity of single-phase multiferroics in nature.
date: 2015-10
type: Article
type: PeerReviewed
identifier:   Dang, Duc Dung and Duong, Van Thiet and Dorj, Odkhuuc and Le, Viet Cuong and Nguyen, Hoang Tuan and Sunglae, Cho  (2015) Room-temperature ferromagnetism in Fe-doped wide band gap ferroelectric Bi0.5K0.5TiO3 nanocrystals.  Materials Letters, 156 .   pp. 129-133.      
relation: doi:10.1016/j.matlet.2015.05.010