Results 31 to 40 of about 13,141 (117)

On the density of states of graphene in the nearest-neighbor approximation

open access: yesCondensed Matter Physics, 2017
We propose an alternative analytical expression for the density of states of a clean graphene in the nearest-neighbor approximation. In contrast to the previously known expression, it can be written as a single formula valid for the whole energy range ...
V.O. Ananyev, M.I. Ovchynnikov
doaj   +1 more source

Dynamics of state price densities [PDF]

open access: yesJournal of Econometrics, 2009
State price densities (SPDs) are an important element in applied quantitative finance. In a Black-Scholes world they are lognormal distributions but in practice volatility changes and the distribution deviates from log-normality. In order to study the degree of this deviation, we estimate SPDs using EUREX option data on the DAX index via a ...
Wolfgang Härdle, Zdenek Hlavka
openaire   +6 more sources

Electronic structure of 2H-SnSe2: ab initio modeling and comparison with experiment

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2016
Energy band structure, total and local partial densities of states, spatial distribution of electronic density of 2H-SnSe2 have been calculated using the density functional theory method in LDA and LDA+U approximations both with and without consideration
D.I. Bletskan
doaj   +1 more source

DFT studies of BaTiO3

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2023
The structure of stable phases is investigated using first-principle calculations based on the functionals: LDA, GGA and newly developed general-purpose heavily constrained and appropriately normalized meta GGAfunctional (SCAN).
Т.М. Инербаев   +5 more
doaj   +1 more source

On the density of twistor elementary states [PDF]

open access: yesPacific Journal of Mathematics, 1991
U(p,q) may be represented on \(H^{p-1}({\mathbb{P}}^+,{\mathcal O}(\lambda))\) where \({\mathbb{P}}^+\) is an open orbit of U(p,q) in \({\mathbb{C}}{\mathbb{P}}_{p+q- 1}\) and \(\lambda\) is a homogeneous holomorphic line bundle. Although it is not their definition, the twistor elementary states turn out to be the U(p)\(\times U(q)\)-finite vectors. We
Eastwood, M. G., Pilato, A. M.
openaire   +2 more sources

Ultrabroadband density of states of amorphous In-Ga-Zn-O

open access: yesPhysical Review Research, 2020
The subgap density of states of amorphous indium gallium zinc oxide (a-IGZO) is obtained using the ultrabroadband photoconduction response of thin-film transistors (TFTs).
Kyle T. Vogt   +8 more
doaj   +1 more source

Studi Sifat Elektronik Grafit menggunakan Metode Density Functional Theory

open access: yesWahana Fisika: Jurnal Penelitian Fisika dan Terapannya
Penelitian ini telah dilakukan untuk mengetahui sifat elektronik grafit berdasarkan kurva band structure dan density of states menggunakan metode density functional theory yang diimplementasikan dengan perangkat lunak Quantum Espresso.
Drusila Wilce Linome   +3 more
doaj   +1 more source

A new insight of structures, bonding and electronic properties for 6-mercaptopurine and Ag8 clusters configurations: a theoretical perspective

open access: yesBMC Chemistry, 2019
Background Many reports have also shown that the silver nanoparticles can effectively increase the anticancer drug activity and intensely enhance the drug curative effect. The adsorption of 6MP on nanomaterials has received a lot of attentions because of
Hongjiang Ren   +3 more
doaj   +1 more source

Study on the Adsorption Properties and Mechanisms of CO on Nickel Surfaces Based on Density Functional Theory

open access: yesEnergies, 2023
In this work, the adsorption of CO onto the surface of the transition metal Ni at different coverage levels was explored based on the density functional theory (DFT).
Kun Wang, Kunlun Li, Fuqing Wang
doaj   +1 more source

Home - About - Disclaimer - Privacy