Explain ferroelectricity, Electrical Engineering

Assignment Help:

Explain ferroelectricity.

Ferroelectricity:- Materials of ferroelectric have a high dielectric constant that is non-linear that is, this depends to a considerable extent on the intensity of electric field. These materials exhibit hysterisis loops that are the polarization is not a linear function of applied electric field. When the center of gravity of the positive and negative charges into a body does not coincide in absence of an applied electric field, therefore substance has an electric dipole moment. Hence material is said to be spontaneously polarized and termed as ferroelectric material. That substance is termed as ferroelectric. This contains small regions termed as ferroelectric domains and all dipoles are parallely oriented in domain although different domains are randomly oriented into the absence of an external electric field. While the temperature exceeds a particular value termed as the Curie point, the substance loses its ferroelectric properties. Examples are: Rochelle salt, Barium titanate and Potassium dihydrogen phosphate.


Related Discussions:- Explain ferroelectricity

Present and future trends in power systems, Q. Present and Future Trends in...

Q. Present and Future Trends in power systems? According to the Edison Electric Institute, electricity's share of U.S. primary energy was almost 36% in 1989, and it is likely t

Obtain expressions for the in-phase and quadrature component, Q. For DSB an...

Q. For DSB and conventional AM, obtain expressions for the in-phase and quadrature components x d (t) and x q (t), and envelope and phase v(t) and φ(t).

H – parameter model, H - Parameter model :- The transistor's equiv...

H - Parameter model :- The transistor's equivalent circuit can be dram using simple approximation by retaining its necessary features. These equivalent circuits will a

What are the features of clamping circuits, Q. What are the features of cla...

Q. What are the features of clamping circuits? The clamping circuit does not change the peak to peak or r.m.s value of the waveform .Thus the input waveform and clamped output

The potential difference at the battery terminals, Ten 1.5V cells in series...

Ten 1.5V cells in series, each cells having an internal resistance of 0.3Ω, are connected series to a load of 25Ω. Determine : i.The current flowing the circuit

Address bus - bus organisation , Address Bus The address  bus is the gr...

Address Bus The address  bus is the group  of 16 lines. It is used  to carry  the address of memory  location and  addresses  of input  and output  ports as shown. It is a unid

Compute the area of each plate, Q For a parallel-plate capacitor with plate...

Q For a parallel-plate capacitor with plates of area A m 2 and separation d m in air, the capacitance in farads may be computed from the approximate relation Compute the a

Determine n-type semiconductor of example which material, N-type semiconduc...

N-type semiconductor is an example of (A)  Extrinsic semiconductor.            (B) Intrinsic semiconductor. (C)  Super conductor.                        (D)  Insulators.

Gunn diode, write the note on gunn diode and ats applications

write the note on gunn diode and ats applications

Basic specifications of a ujt, The very basic specifications of a UJT are: ...

The very basic specifications of a UJT are: Vbb(max) - The maximum interbase voltage that can be applied to the UJT (b) Rbb-the interbase resistance of the UJT (c) n - The

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd