Nonlinear microwave properties of ferroelectric thin films

Linear and Nonlinear Optical Properties of Ferroelectric Thin Films

Ferroelectric Thin Films for Tunable Microwave Applications

Modern wireless communication systems are based on microwave technologies. Ferroelectric devices with the electric field dependent dielectric properties and low dielectric losses at microwave frequencies are very promising. Capacitance tunability nc, defined as the ratio of the capacitance at zero applied bias voltage to the capacitance at some desired applied voltage, is the key functional pro...

Scaling Of Ferroelectric Properties In Thin Films

A fundamental issue in ferroic systems (ferromagnetic and ferroelectric) is the scaling of the order parameter (magnetization or polarization) with size. Specifically, in ferroelectric thin films, deviations in the polarization can occur due to: (i) competition between thermal vibrations and the correlation energy (which aligns the dipoles); (ii) damage during fabrication. These deviations will...

architecture and engineering of nanoscale sculptured thin films and determination of their properties

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Microwave a.c. conductivity of domain walls in ferroelectric thin films

Ferroelectric domain walls are of great interest as elementary building blocks for future electronic devices due to their intrinsic few-nanometre width, multifunctional properties and field-controlled topology. To realize the electronic functions, domain walls are required to be electrically conducting and addressable non-destructively. However, these properties have been elusive because conduc...