Physics – Condensed Matter – Materials Science
Scientific paper
2008-11-06
Physics
Condensed Matter
Materials Science
35 pages, 7 figures, 4 Appendices, to be submitted to Phys. Rev. B
Scientific paper
Within the Landau-Ginsburg-Devonshire phenomenological approach we study the ferroic nanosystems properties changes caused by the flexo-effect (flexoelectric, flexomagnetic, flexoelastic) existing spontaneously due to the inhomogeneity of order parameters. Exact solution for the spatially inhomogeneous mechanical displacement vector allowing for flexo-coupling contribution was found for nanowires and thin pills. Strong influence of flexo-effect in nanorods and thin pills leads to the displacements of the atoms resulting into the unit cell symmetry changes, which lead to the phase transition temperature shift, as well as the flat geometry in radial direction transforms into the saucer-like one. The new phenomena can be considered as true manifestation of the spontaneous flexo-effect existence. It was shown that flexo-effect leads to (a) the appearance of new linear and nonlinear contribution and renormalization of coefficients before the order parameter gradient, (b) essentially influences the transition temperature, piezoelectric response and the spatial distribution of the order parameter, (c) results in renormalization of extrapolation length in the boundary conditions.
Blinc Robert
Eliseev Eugene A.
Glinchuk Maya D.
Morozvska Anna N.
No associations
LandOfFree
Spontaneous flexoeffect in nanoferroics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spontaneous flexoeffect in nanoferroics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spontaneous flexoeffect in nanoferroics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-228105