Domain wall freezing in KDP-type ferroelectrics
نویسندگان
چکیده
منابع مشابه
Domain wall geometry controls conduction in ferroelectrics.
A new paradigm of domain wall nanoelectronics has emerged recently, in which the domain wall in a ferroic is itself an active device element. The ability to spatially modulate the ferroic order parameter within a single domain wall allows the physical properties to be tailored at will and hence opens vastly unexplored device possibilities. Here, we demonstrate via ambient and ultrahigh-vacuum (...
متن کاملDomain wall characterization in ferroelectrics by using localized nonlinearities.
In this paper, a method of domain wall characterization in ferroelectrics through Cherenkov second harmonic generation by localized nonlinearities is proposed. By this method, domain wall width is estimated to be less than 10nm. High spatial angular resolution of about 10 mrad in the experiment reveals the fine structures of the domain walls. Combined with scanning techniques, this method can r...
متن کاملDisplacive and order–disorder behavior of KDP-type ferroelectrics on the local scale
The modified strong dipole–proton coupling (MSDPC) model, which predicted several static and dynamic dielectric properties of KH2PO4 or KDP-type ferroelectrics, was used to investigate the properties of these crystals on the local scale. Results calculated by molecular dynamics (MD) simulation show that both order–disorder and displacive characteristics of one PO4 dipole are present in KDP and ...
متن کاملModified strong dipole-proton coupling model and local properties of EPR probe in the KDP-type ferroelectrics
The modified strong dipole-proton coupling (MSDPC) model, which predicts several static and dynamic dielectric properties of KDP-type ferroelectrics, is used to investigate properties of paramagnetic center SeO4 introduced in KH2PO4 (KDP) and KD2PO4 (DKDP) lattice as a local probe in EPR experiment. Paramagnetic center is treated within MSDPC model as a “soft” impurity, with Aprobe value of the...
متن کاملPhenomenological theory of a single domain wall in uniaxial trigonal ferroelectrics: Lithium niobate and lithium tantalate
A phenomenological treatment of domain walls based on the Ginzburg-Landau-Devonshire theory is developed for uniaxial trigonal ferroelectrics, lithium niobate and lithium tantalate. The contributions to the domainwall energy from polarization and strain as a function of orientation are considered. Analytical expressions are developed that are analyzed numerically to determine the minimum polari...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics and Chemistry of Solids
سال: 2000
ISSN: 0022-3697
DOI: 10.1016/s0022-3697(99)00294-2