Models of dielectric response in disordered solids

FRANTA, Daniel, David NEČAS and Lenka ZAJÍČKOVÁ. Models of dielectric response in disordered solids. Optics Express. elektronicky: Optical Society of America, 2007, vol. 15, No 24, p. 16230-16244. ISSN 1094-4087.

Basic information

• Original name: Models of dielectric response in disordered solids
• Name in Czech: Modely dielektrické odezvy neuspořádaných pevných látek
• Authors: FRANTA, Daniel (203 Czech Republic, guarantor), David NEČAS (203 Czech Republic) and Lenka ZAJÍČKOVÁ (203 Czech Republic).
• Edition: Optics Express, elektronicky, Optical Society of America, 2007, 1094-4087.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10302 Condensed matter physics
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 3.709
• RIV identification code: RIV/00216224:14310/07:00020733
• Organization unit: Faculty of Science
• UT WoS: 000251223900062
• Keywords in English: Optical constants; Dispersion; Glass and other
• Tags: dispersion, Glass and other, optical constants
• Tags: International impact, Reviewed

Abstract

Two dispersion models of disordered solids, one parameterizing density of states (PDOS) and the other parameterizing joint density of states (PJDOS), are presented. Using these models, not only the complex dielectric function of the materials, but also some information about their electronic structure can be obtained. The numerical integration is necessary in the PDOS model. If analytical expressions are required the presented PJDOS model is, for some materials, a suitable option still providing information about the electronic structure of the material. It is demonstrated that the PDOS model can be successfully applied to a wide variety of materials. In this paper, its application to diamond-like carbon (DLC), a-Si and SiO2-like materials are discussed in detail. Unlike the PDOS model, the presented PJDOS model represents a special case of parameterization that can be applied to limited types of materials, for example DLC, ultrananocrystalline diamond (UNCD) and SiO2-like.

Abstract (in Czech)

Jsou zde popsány dva modely neuspořádaných pevných látek. Jeden z nich parametrizuje hustotu stavů (PDOS) a druhý sdruženou hustotu stavů (PJDOS).

Links

• GA202/05/0607, research and development project: Name: Příprava uhlíkových mikro- a nanostruktur plazmovými technologiemi

Investor: Czech Science Foundation, Synthesis of carbon micro- and nanostructures by plasma technologies

• MSM0021622411, plan (intention): Name: Studium a aplikace plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek

Investor: Ministry of Education, Youth and Sports of the CR, Study and application of plasma chemical reactions in non-isothermic low temperature plasma and its interaction with solid surface

• 1K05025, research and development project: Name: Příprava nových Si-O(N)-C materiálů plazmochemickou metodou

Investor: Ministry of Education, Youth and Sports of the CR, Synthesis of new Si-O(N)-C materials by plasmachemical methods