Ioanna Bakaimi

5 Questions 19 Answers 0 Followers

Questions related from Ioanna Bakaimi

I am interested in the role of space charge or interfacial polarization in recently discovered magnetoelectrics. Any good references to recommend?

It has been found that interfacial polarization plays a major role in heterogeneous materials, such as doped ceramics. This could be a possible reason behind the appearance of magneto-electric...

10 October 2013 2,425 2 View

How to explain the stronger magnetodielectric coupling on an incommensurate magnetic structure, and it being less strong to the commensurate one?

I am measuring dielectric constant of a magneto-dielectric which has a low temperature incommensurate (LT-ICM) magnetic structure and a high temperature commensurate (HT-CM) one. At the same T...

07 July 2013 1,926 7 View

Is it possible to observe thermal hysterisis upon a second order transition?

I measure dielectric permitivvityversus T in bulk BaTiO3 samples .It is known that when it undegoes from paraelectric to ferroelectric(cubic to tetragonal) it exhibits a first order transition...

03 March 2013 9,381 9 View

What is the origin of the inverse Dzyaloshinksii Moriya Interaction? How does it affect the direction of polarization in magnetoelectrics?

I understand the origin of the DMI interaction, however the inverse DMI puzzles me. When do we have inverse DMI (apart from the necessary breaking of the inversion symmetry) or the spin current...

02 February 2013 4,302 21 View

Why do spin glasses exhibit aging phenomena? Why don't other spin glasses show any aging effects?

It is known that spin glasses have aging and rejuvenation effects. In some spin glasses though, aging phenomena have not been observed. What is the basic characteristic of a spin glass that will...

01 January 2013 7,918 6 View