Electronic ferroelectricity in carbon based materials
نویسندگان
چکیده
منابع مشابه
Carbon Based Electronic Materials: Applications in Electron Field Emission
The influence of the different types of bonding present in a range of carbon based materials is discussed as a precursor to describing the field emission characteristics of carbon cold cathode materials. Some of the controlling factors which govern electron emission from carbon based cathodes are discussed. It is shown that from disordered carbon films the interplay between the clustered sp 2 p...
متن کاملElectronic ferroelectricity in carbon-based systems: from reality of organic conductors to promises of polymers and graphene nano-ribbons
Ferroelectricity is a rising demand in fundamental and applied solid state physics. Ferroelectrics are used in microelectronics as active gate materials, in capacitors, electrooptical-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 ferroelectri...
متن کاملIntermediate coupling theory of electronic ferroelectricity.
We calculate the quantum phase diagram of an extended Falicov-Kimball model for one- and two-dimensional systems in the intermediate coupling regime. Even though some features of the phase diagram are obtained analytically, the main results are calculated with a constrained path Monte Carlo technique. We find that this regime is dominated by a Bose-Einstein condensation of excitons with a built...
متن کاملAtomic-level simulation of ferroelectricity in oxide materials
Recent work on using atomic-level simulation methods to study the ferroelectric properties of oxide materials is reviewed. In particular, it is illustrated how such methods can provide insights into the physical properties of a wide range of ferroelectric oxide materials inaccessible by other means. Approaches for further improvements in materials fidelity and increased range of applicability a...
متن کاملSpectroscopic Studies on Electronic Ferroelectricity in Organic Conductors
Organic conductors exhibit unusual physical properties due to the critical nature of valence electrons fluctuating under localizing and delocalizing regime. Recently, we discovered that an organic superconductor, α-(BEDT-TTF)2I3 [BEDTTTF: bis(ethylenedithio)tetrathiafulvalene], induces optical second-harmonic generation (SHG) along with charge-ordering driven by the repulsive electron-electron ...
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: Synthetic Metals
سال: 2016
ISSN: 0379-6779
DOI: 10.1016/j.synthmet.2015.10.015