نتایج جستجو برای: ferroelectricity

تعداد نتایج: 1253  

2005
Na Sai Alexie M. Kolpak Andrew M. Rappe

We report studies of ferroelectricity in ultra-thin perovskite films with realistic electrodes. The results reveal stable ferroelectric states in thin films less than 10 Å thick with polarization normal to the surface. Under short-circuit boundary conditions, the screening effect of realistic electrodes and the influence of real metal/oxide interfaces on thin film polarization are investigated....

Journal: :Physical review. B, Condensed matter 1989
Edwardson Boyer Newman Fox Hardy Flocken Guenther Mei

2009
R Feyerherm D N Argyriou

Magnetic rare earths R have been proven to have a significant effect on the multiferroic properties of the orthorhombic manganites RMnO3. A re-examination of previous results from synchrotron based x-ray scattering experiments suggests that symmetric exchange striction between neighboring R and Mn ions may account for the enhancement of the ferroelectric polarization in DyMnO3 as well as the ma...

Journal: :Physical review letters 2008
M Kenzelmann A B Harris

A Comment on the Letter by Maxim Mostovoy, [Phys. Rev. Lett. 96, 067601 (2006)]. The author of the Letter offers a Reply.

2007
Ramiro Moro

www.sciencemag.org (this information is current as of July 30, 2007 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/300/5623/1265 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/300/5623/1265/DC1 can be found...

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