Electronic ferroelectricity in carbon-based systems: from reality of organic conductors to promises of polymers and graphene nano-ribbons

2nd Russia-Japan-USA Symposium on the Fundamental and Applied Problems of Terahertz Devices and Technologies

Kirova, Natasha^1 ; Brazovskii, Serguei^2

LPS, CNRS-UMR 8502, Université Paris-sud, 91405 Orsay cedex, France^1

LPTMS, CNRS-UMR 8626, Université Paris-sud, 91405 Orsay cedex, France^2

关键词: Acoustic modulators;    Carbon based materials;    Electro-optical;    Electronic ferroelectricities;    Ferroelectric polarization;    Graphene nano-ribbon;    Microscopic mechanisms;    Traditional materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/486/1/012009/pdf
DOI  :  10.1088/1742-6596/486/1/012009

来源: IOP

【 摘 要 】

Ferroelectricity is a rising demand in fundamental and applied solid state physics. Ferroelectrics are used in microelectronics as active gate materials, in capacitors, electro-optical-acoustic modulators, etc. There is a particular demand for plastic ferroelectrics, e.g. as a sensor for acoustic imaging in medicine and beyond, in shapeable capacitors, etc. Microscopic mechanisms of ferroelectric polarization in traditional materials are typically ionic. In this talk we discuss the electronic ferroelectrics-carbon-based materials: organic crystals, conducting polymers and graphene nano-ribbons. The motion of walls, separating domains with opposite electric polarisation, can be influenced and manipulated by terahertz and infra-red range optics.