eprintid: 4226
rev_number: 14
eprint_status: archive
userid: 333
dir: disk0/00/00/42/26
datestamp: 2020-12-11 01:38:52
lastmod: 2020-12-23 03:15:00
status_changed: 2020-12-23 03:15:00
type: article
metadata_visibility: show
creators_name: Bui, Dinh Tu
creators_id: buidinhtu@vnu.edu.vn
corp_creators: Dao Viet Thang
corp_creators: Van Quang Nguyen
corp_creators: Nguyen Manh Hung
corp_creators: Le Thi Mai Oanh
corp_creators: Nguyen Cao Khang
corp_creators: Du Thi Xuan Thao
corp_creators: Nguyen Van Minh
title: Structural, Optical, Ferroelectric and Ferromagnetic Properties of Bi1xGdxFeO3 Materials
ispublished: pub
subjects: Phys
subjects: isi
divisions: fac_physic
abstract: Bi1xGdxFeO3 (BGFO) (x = 0.00 7 0.15) materials were prepared by a sol-gel method. The effect of Gd doping on the structural, ferromagnetic, and ferroelectric properties of BiFeO3 (BFO) were analyzed using x-ray diffraction, Raman scattering, energy-dispersive x-ray spectroscopy, ferroelectric hysteresis loop and magnetic hysteresis loop measurements. All samples showed
a rhombohedral structure of the perovskite type. The a and c lattice parameters decreased with Gd content, obeying Vegard’s law, from 5.583 A˚ to 5.511
A˚ , and from 13.869 A˚ to 13.741 A˚ , respectively. The optical band gap (Eg) also decreased with Gd content, from 2.02 eV to 1.60 eV at x = 0.00 to x = 0.15,
respectively. The ferroelectric and ferromagnetic properties of the BGFO materials were enhanced compared with those of the pure BFO material. Maximum saturation polarization (Ps) and saturation magnetization (Ms) values of 6.88 lC/cm2 and 0.386 emu/g were obtained. We found that the optimum Gd doping content to enhance multiferroic properties of BFO material is in range from x = 0.10 to x = 0.125. The origin of ferromagnetic
and ferroelectric properties of BGFO materials were also discussed.
date: 2020-05-13
date_type: published
publisher: buidinhtu
full_text_status: none
publication: Journal of Electronic Materials
volume: 49
number: 7
pagerange: 4443-4449
refereed: TRUE
issn: 0361-5235
funders: the Ministry of Education and Training Vietnam Grant Number B2018-MDA-02-CtrVL.
citation:   Bui, Dinh Tu  (2020) Structural, Optical, Ferroelectric and Ferromagnetic Properties of Bi1xGdxFeO3 Materials.  Journal of Electronic Materials, 49  (7).   pp. 4443-4449.  ISSN 0361-5235