Bipul Deka

7 Questions 12 Answers 0 Followers

Questions related from Bipul Deka

How is the magnetoelectric current measured?

Measurement of magnetoelectric current (density) seems to be very popular to investigate the magneto-electric response of multiferroics. It'll be grateful to know how it is measured and about the...

06 June 2019 6,393 1 View

Why there are two relations to calculate the dielectric permittivity?

We often see two relation for calculation the dielectric permittivity: (1) E= C/C0 where E = dielectric permittivity, C = capacitnace and C0 is the geometric capacitance. (2) E =...

06 June 2017 632 3 View

An email asking me "Who gave me my Noble prize?"?

I have received the following attached mail for a long time. I can not understand it. please see it.

02 February 2017 2,210 0 View

How the value of surface layer (skin) capacitance of a crystal differs from that of grain boundaries and grains?

It is reported that several important pervoskites like SrTiO3, BaTiO3 have surface layers that are structurally different from the interior of crystal. Further, it can show transition similar to...

08 August 2016 6,011 8 View

Can anyone please help me in modelling the equivalent circuitr for the following Nyquist plot?

I got the following Nyquist plot, measured in a frequency range of 100Hz - 1MHz by an Waynkerr LCR meter. I am trying to model an equivalent circuit for it and tried a lot using CPE also, but not...

02 February 2016 7,958 7 View

Can the imaginary part of dielectric constant have negative values?

I am working on orthoferrites and studying their dielectric properties. One of the samples I prepared shows a dielectric relaxation peak (observed in real part of dielectric constant, at high...

02 February 2016 2,304 6 View

What is the Quantum Effect in ac conductivity?

02 February 2016 3,326 3 View