eprintid: 1807
rev_number: 7
eprint_status: archive
userid: 5
dir: disk0/00/00/18/07
datestamp: 2016-07-11 12:36:59
lastmod: 2016-07-11 12:37:58
status_changed: 2016-07-11 12:36:59
type: article
metadata_visibility: show
creators_name: Dang, Duc Dung
creators_name: Duong, Van Thiet
creators_name: Dorj, Odkhuuc
creators_name: Le, Viet Cuong
creators_name: Nguyen, Hoang Tuan
creators_name: Sunglae, Cho
creators_id: cuonglv@vnu.edu.vn
title: Room-temperature ferromagnetism in Fe-doped wide band gap ferroelectric Bi0.5K0.5TiO3 nanocrystals
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: 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
date_type: published
official_url: doi:10.1016/j.matlet.2015.05.010
full_text_status: none
publication: Materials Letters
volume: 156
pagerange: 129-133
refereed: TRUE
citation:   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.