Publication

First-principles description of ferroelectric/electrode interfaces and properties of not very thin ferroelectric capacitors

Nava Setter, Alexander Tagantsev
2007
Conference Papers

Abstract

We formulate an approach to the size effect problem in ferroelectric-electrode systems where ab initio calculations are combined with a phenomenological framework. The parameters of the model can be extracted from the calculations, while experimentally verifiable predictions can be made on thick films. We illustrate this approach by applying it to SrRuO3/BaTiO3/SrRuO3 heterostructures with different terminations of the metal-oxide electrodes.

Official source

https://infoscience.epfl.ch/entities/publication/9d0e0657-46c3-46fa-8ac9-fe85274cd2f3

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Nava Setter, Alexander Tagantsev
2007
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/9d0e0657-46c3-46fa-8ac9-fe85274cd2f3

About this result

Related concepts (32)

Ferroelectricity

Ferroelectricity is a characteristic of certain materials that have a spontaneous electric polarization that can be reversed by the application of an external electric field. All ferroelectrics are also piezoelectric and pyroelectric, with the additional property that their natural electrical polarization is reversible. The term is used in analogy to ferromagnetism, in which a material exhibits a permanent magnetic moment. Ferromagnetism was already known when ferroelectricity was discovered in 1920 in Rochelle salt by Joseph Valasek.

Capacitor types

Capacitors are manufactured in many styles, forms, dimensions, and from a large variety of materials. They all contain at least two electrical conductors, called plates, separated by an insulating layer (dielectric). Capacitors are widely used as parts of electrical circuits in many common electrical devices. Capacitors, together with resistors and inductors, belong to the group of passive components in electronic equipment.

Capacitor

A capacitor is a device that stores electrical energy in an electric field by accumulating electric charges on two closely spaced surfaces that are insulated from each other. It is a passive electronic component with two terminals. The effect of a capacitor is known as capacitance. While some capacitance exists between any two electrical conductors in proximity in a circuit, a capacitor is a component designed to add capacitance to a circuit.

Related publications (9)

First-principles description of ferroelectric/electrode interfaces and properties of not very thin ferroelectric capacitors

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