TY - JOUR
T1 - Influence of Crystallization Temperature on Structural, Ferroelectric, and Ferromagnetic Properties of Lead-Free Bi
0.5
(Na
0.8
K
0.2
)
0.5
TiO
3
Multiferroic Films
AU - Quan, Ngo Duc
AU - Toan, Tran Quoc
AU - Hung, Vu Ngoc
AU - Nguyen, Minh Duc
PY - 2019/1/1
Y1 - 2019/1/1
N2 -
Lead-free Bi
0.5
(Na
0.8
K
0.2
)
0.5
TiO
3
(abbreviated as BNKT) films have been synthesized via a sol-gel technique on Pt/Ti/SiO
2
/Si substrates, and the dependence of the physical properties in BNKT films were investigated as a function of the crystallization temperature. The BNKT films were annealed at different temperatures (600, 650, 700, and 750°C) for 60 min in the air. The results of this study showed that the optimal crystallization temperature is 700°C. At this, the BNKT films exhibited a single perovskite phase structure and high-dense surface. Besides, the remanent (P
r
) and maximum (P
m
) polarization reached their highest values of 9.2 μC/cm
2
and 30.6 μC/cm
2
, respectively. All the films showed a weak ferromagnetic behavior with the maximum saturated magnetization (M
s
) of 2.1 emu/cm
3
. These values are equivalent to the highest P
r
and P
m
values in previous reports on lead-free films.
AB -
Lead-free Bi
0.5
(Na
0.8
K
0.2
)
0.5
TiO
3
(abbreviated as BNKT) films have been synthesized via a sol-gel technique on Pt/Ti/SiO
2
/Si substrates, and the dependence of the physical properties in BNKT films were investigated as a function of the crystallization temperature. The BNKT films were annealed at different temperatures (600, 650, 700, and 750°C) for 60 min in the air. The results of this study showed that the optimal crystallization temperature is 700°C. At this, the BNKT films exhibited a single perovskite phase structure and high-dense surface. Besides, the remanent (P
r
) and maximum (P
m
) polarization reached their highest values of 9.2 μC/cm
2
and 30.6 μC/cm
2
, respectively. All the films showed a weak ferromagnetic behavior with the maximum saturated magnetization (M
s
) of 2.1 emu/cm
3
. These values are equivalent to the highest P
r
and P
m
values in previous reports on lead-free films.
UR - http://www.scopus.com/inward/record.url?scp=85060447877&partnerID=8YFLogxK
U2 - 10.1155/2019/8976385
DO - 10.1155/2019/8976385
M3 - Article
AN - SCOPUS:85060447877
VL - 2019
JO - Advances in materials science and engineering
JF - Advances in materials science and engineering
SN - 1687-8434
M1 - 8976385
ER -