Magnetization-graded multiferroic composite and magnetoelectric effects at zero bias

2011 ◽  
Vol 84 (1) ◽  
Author(s):  
S. K. Mandal ◽  
G. Sreenivasulu ◽  
V. M. Petrov ◽  
G. Srinivasan
Keyword(s):  
Zero Bias ◽  
Magnetoelectric Effects ◽  
Multiferroic Composite

RESONANT MAGNETOELECTRIC EFFECTS IN Ni/Pb(Zr,Ti)O3/FeCo TRILAYERED SEMICIRCULAR COMPOSITES

2013 ◽  
Vol 20 (01) ◽  
pp. 1350004 ◽  
Author(s):  
H. HONG ◽  
Y. G. WANG ◽  
K. BI ◽  
F. G. CHEN
Keyword(s):  
Magnetic Field ◽  
Field Frequency ◽  
Zero Bias ◽  
Resonant Frequencies ◽  
Magnetoelectric Effects ◽  
Magnetic Field Frequency ◽  
Voltage Coefficient ◽  
The Magnetic Field ◽  
Effective Excitation ◽  
Multifunctional Devices

Magnetoelectric (ME) effect has been studied in semicircular composites with a negative magnetostrictive/piezoelectric/positive magnetostrictive Ni/Pb(Zr,Ti)O3/FeCo trilayered structure. The ME behavior of the Ni/Pb(Zr,Ti)O3/FeCo is different from those in previous studies and zero-bias ME effects and four remarkable resonant peaks have been observed in the dependence of the ME voltage coefficient on the magnetic field frequency in the 1–150 kHz range. The effective excitation of the acoustical oscillations provided by the positive and negative magnetostrictive layers is responsible for the multifrequency ME effects. The results open up a suitable way to make multifunctional devices with multi-resonant-frequencies and/or zero-bias operations.

scholarly journals The magnetoelectric effects in multiferroic composite nanofibers

2009 ◽  
Vol 94 (10) ◽  
pp. 102907 ◽  
Author(s):  
C. L. Zhang ◽  
W. Q. Chen ◽  
S. H. Xie ◽  
J. S. Yang ◽  
J. Y. Li
Keyword(s):  
Composite Nanofibers ◽  
Magnetoelectric Effects ◽  
Multiferroic Composite

Magnetoelectric effects in bilayer multiferroic core-shell composites

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
H. M. Wang ◽  
E. Pan ◽  
W.Q. Chen
Keyword(s):  
Low Frequency ◽  
Core Shell ◽  
Radial Deformation ◽  
Frequency Range ◽  
Radial Magnetic Field ◽  
Magnetoelectric Effects ◽  
Free Case ◽  
Multiferroic Composite ◽  
Uniform Manner ◽  
Electromechanical Resonance

AbstractWe investigate magnetoelectric (ME) effects in bilayer multiferroic core-shell composites in this paper. The composites are driven by the radial magnetic field and the induced radial deformation/vibration is studied. Two configurations are considered in a concise and uniform manner mathematically. One is spherical and the other is cylindrical. For bilayer core-shell composites, we show that the geometric configuration has a significant effect on the ME effect in multiferroic core-shell composites for both low-frequency and electromechanical resonance ranges. At the low-frequency range, except for the mechanically clamped case, the ME effects in spherical multiferroic composites are always stronger than that in cylindrical ones. At the electromechanical resonance range, for traction-free case, the fundamental resonance frequency of the spherical multiferroic composite is higher than that of the cylindrical one and thus the corresponding ME effect in spherical composite is stronger than that in cylindrical one.

Magnetoelectric Properties of Low Temperature Sintered CoFe2O4-(PZN-PZT) Multiferroic Composite Materials

2016 ◽  
Vol 31 (6) ◽  
pp. 561
Author(s):  
FAN Gui-Fen ◽  
XU Xing ◽  
WANG Kai ◽  
LV Wen-Zhong ◽  
LIANG Fei ◽  
...  
Keyword(s):  
Composite Materials ◽  
Low Temperature ◽  
Magnetoelectric Properties ◽  
Multiferroic Composite

The Determination of the Magnetoelectric Coupling Coefficient in Ferroelectric–Ferromagnetic Composite Based on PZT–Ferrite

2013 ◽  
Vol 58 (4) ◽  
pp. 1401-1403 ◽  
Author(s):  
J.A. Bartkowska ◽  
R. Zachariasz ◽  
D. Bochenek ◽  
J. Ilczuk
Keyword(s):  
Dielectric Permittivity ◽  
Coupling Coefficient ◽  
Mean Field ◽  
Field Approximation ◽  
Theoretical Description ◽  
Magnetoelectric Coupling ◽  
Mean Field Approximation ◽  
Dielectric Measurements ◽  
Temperature Dependences ◽  
Multiferroic Composite

Abstract In the present work, the magnetoelectric coupling coefficient, from the temperature dependences of the dielectric permittivity for the multiferroic composite was determined. The research material was ferroelectric-ferromagnetic composite on the based PZT and ferrite. We investigated the temperature dependences of the dielectric permittivity (") for the different frequency of measurement’s field. From the dielectric measurements we determined the temperature of phase transition from ferroelectric to paraelectric phase. For the theoretical description of the temperature dependence of the dielectric constant, the Hamiltonian of Alcantara, Gehring and Janssen was used. To investigate the dielectric properties of the multiferroic composite this Hamiltonian was expressed under the mean-field approximation. Based on dielectric measurements and theoretical considerations, the values of the magnetoelectric coupling coefficient were specified.

scholarly journals Topological isoconductance signatures in Majorana nanowires

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
L. S. Ricco ◽  
J. E. Sanches ◽  
Y. Marques ◽  
M. de Souza ◽  
M. S. Figueira ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Transport Properties ◽  
Spin Polarization ◽  
Bound States ◽  
Spin Asymmetry ◽  
Experimental Protocol ◽  
Zero Bias ◽  
Topological Superconductor ◽  
Hybrid Device ◽  
Majorana Bound States

AbstractWe consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana bound states (MBSs) at the opposite ends. It is demonstrated that if highly nonlocal and nonoverlapping MBSs are formed in the system, the zero-bias Andreev conductance through the dot exhibits characteristic isoconductance profiles with the shape depending on the spin asymmetry of the coupling between the dot and the topological superconductor. Otherwise, for overlapping MBSs with less degree of nonlocality, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an alternative experimental protocol for probing the nonlocality of the MBSs in Majorana nanowires.

Theoretical modelling of magnetoelectric effects in multi-push–pull mode Metglas/piezo-fibre laminates

2012 ◽  
Vol 45 (35) ◽  
pp. 355002 ◽  
Author(s):  
M Li ◽  
D Hasanyan ◽  
Y Wang ◽  
J Gao ◽  
J Li ◽  
...  
Keyword(s):  
Theoretical Modelling ◽  
Magnetoelectric Effects
Sign in / Sign up

Export Citation Format

Share Document