Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Control of polarization hysteresis temperature behavior by interfacial
  screening in thin ferroelectric films   Ferroelectric interfaces are unique model objects for fundamental studies of
polar surface properties such as versatile screening mechanisms of spontaneous
polarization by free carriers and possible ion exchange with ambient media. The
effect of ionic adsorption by electrically-open (i.e. non-electroded)
ferroelectric surface on polarization reversal in the ferroelectric had been
investigated experimentally and theoretically, however the effect influence on
the temperature behaviour of polarization hysteresis remains unexplored. Also
the comparative theoretical analysis of the ferroelectric hysteresis for linear
and nonlinear electronic screenings, and strongly nonlinear ionic screening of
the spontaneous polarization was absent. In this work we study the free energy
relief of a thin ferroelectric film covered by a screening charge layer of
different nature and ultra-thin gap separating the film surface from the top
electrode and calculate hysteresis loops of polarization and screening charge
at different temperatures in the considered system. The dependence of the
screening charge density on electric potential was considered for three basic
models, namely for the linear Bardeen-type model of electronic surface states
(BS), nonlinear Fermi-Dirac (FD) density of states describing two-dimensional
electron gas at the film-gap interface, and strongly nonlinear
Stephenson-Highland (SH) model describing the surface charge density of
absorbed ions by Langmuir adsorption isotherms. Appeared that BS, FD and SH
screening charges, which properties are principally different, determine the
free energy relief (including polarization values corresponding to the free
energy minima at different applied voltages) and control the shape of
polarization hysteresis loops at different temperatures.

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The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math