Magnetoelectric properties of NiFe2O4/0.65BaTiO3–0.35Na0.5Bi0.5TiO3 bilayer thin films deposited via pulsed laser deposition

2019 ◽  
Vol 45 (7) ◽  
pp. 8448-8453 ◽  
Author(s):  
Qingping Dai ◽  
Kaixin Guo ◽  
Min Zhang ◽  
Ruirui Cui ◽  
Chaoyong Deng
2019 ◽  
Vol 33 (11) ◽  
pp. 1950130 ◽  
Author(s):  
Qingping Dai ◽  
Kaixin Guo ◽  
Chaoyong Deng

Multiferroic [Formula: see text]/[Formula: see text]–[Formula: see text] bilayer thin film epitaxially grown on (001)-[Formula: see text]/[Formula: see text] substrate was prepared by pulsed laser deposition. Excellent ferroelectric, magnetoelectric properties and a higher Curie temperature were observed in the [Formula: see text]/[Formula: see text]–[Formula: see text] composite thin film compared with the [Formula: see text]/[Formula: see text] composite thin film. In particular, the remnant and saturated polarizations of [Formula: see text]/[Formula: see text]–[Formula: see text] are [Formula: see text] and [Formula: see text], respectively, and the maximum magnetoelectric coefficient can reach up to [Formula: see text], which are larger than those of the [Formula: see text]/[Formula: see text] composite thin film (18.8, [Formula: see text], and [Formula: see text]).


2001 ◽  
Vol 11 (PR11) ◽  
pp. Pr11-65-Pr11-69
Author(s):  
N. Lemée ◽  
H. Bouyanfif ◽  
J. L. Dellis ◽  
M. El Marssi ◽  
M. G. Karkut ◽  
...  

2001 ◽  
Vol 11 (PR11) ◽  
pp. Pr11-133-Pr11-137
Author(s):  
J. R. Duclère ◽  
M. Guilloux-Viry ◽  
A. Perrin ◽  
A. Dauscher ◽  
S. Weber ◽  
...  

2002 ◽  
Vol 720 ◽  
Author(s):  
Costas G. Fountzoulas ◽  
Daniel M. Potrepka ◽  
Steven C. Tidrow

AbstractFerroelectrics are multicomponent materials with a wealth of interesting and useful properties, such as piezoelectricity. The dielectric constant of the BSTO ferroelectrics can be changed by applying an electric field. Variable dielectric constant results in a change in phase velocity in the device allowing it to be tuned in real time for a particular application. The microstructure of the film influences the electronic properties which in turn influences the performance of the film. Ba0.6Sr0.4Ti1-y(A 3+, B5+)yO3 thin films, of nominal thickness of 0.65 μm, were synthesized initially at substrate temperatures of 400°C, and subsequently annealed to 750°C, on LaAlO3 (100) substrates, previously coated with LaSrCoO conductive buffer layer, using the pulsed laser deposition technique. The microstructural and physical characteristics of the postannealed thin films have been studied using x-ray diffraction, scanning electron microscopy, and nano indentation and are reported. Results of capacitance measurements are used to obtain dielectric constant and tunability in the paraelectric (T>Tc) regime.


2021 ◽  
Vol 127 ◽  
pp. 105716
Author(s):  
Tianzhen Guo ◽  
Dan Wang ◽  
Yajun Yang ◽  
Xiaoyong Xiong ◽  
Kelin Li ◽  
...  

2010 ◽  
Vol 75 ◽  
pp. 202-207
Author(s):  
Victor Ríos ◽  
Elvia Díaz-Valdés ◽  
Jorge Ricardo Aguilar ◽  
T.G. Kryshtab ◽  
Ciro Falcony

Bi-Pb-Sr-Ca-Cu-O (BPSCCO) and Bi-Pb-Sb-Sr-Ca-Cu-O (BPSSCCO) thin films were grown on MgO single crystal substrates by pulsed laser deposition. The deposition was carried out at room temperature during 90 minutes. A Nd:YAG excimer laser ( = 355 nm) with a 2 J/pulse energy density operated at 30 Hz was used. The distance between the target and substrate was kept constant at 4,5 cm. Nominal composition of the targets was Bi1,6Pb0,4Sr2Ca2Cu3O and Bi1,6Pb0,4Sb0,1Sr2Ca2Cu3OSuperconducting targets were prepared following a state solid reaction. As-grown films were annealed at different conditions. As-grown and annealed films were characterized by XRD, FTIR, and SEM. The films were prepared applying an experimental design. The relationship among deposition parameters and their effect on the formation of superconducting Bi-system crystalline phases was studied.


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