Nonlocal density scheme for electronic-structure calculations

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Study of a Nonlocal Density scheme for electronic–structure calculations

An exchange-correlation energy functional beyond the local density approximation, based on the exchange-correlation kernel of the homogeneous electron gas and originally introduced by Kohn and Sham, is considered for electronic structure calculations of semiconductors and atoms. Calculations are carried out for diamond, silicon, silicon carbide and gallium arsenide. The lattice constants and ga...

متن کامل

Spectral density functionals for electronic structure calculations

We introduce a spectral density-functional theory which can be used to compute energetics and spectra of real strongly correlated materials using methods, algorithms, and computer programs of the electronic structure theory of solids. The approach considers the total free energy of a system as a functional of a local electronic Green function which is probed in the region of interest. Since we ...

متن کامل

Assessment of density matrix methods for electronic structure calculations ∗

Purification and minimization methods for computation of the one-particle density matrix are compared. This is done by considering the work needed by each method to achieve a given accuracy in terms of the difference to the exact solution. Simulations employing orthogonal as well as non-orthogonal versions of the methods are performed using both element magnitude and cutoff radius based truncat...

متن کامل

Wavelets for electronic structure calculations

In 2005, the EU FP6-STREP-NEST BigDFT project funded a consortium of four laboratories, with the aim of developing a novel approach for Density Functional Theory (DFT) calculations based on Daubechies wavelets. Rather than simply building a DFT code from scratch, the objective of this three-years project was to test the potential benefit of a new formalism in the context of electronic structure...

متن کامل

Relativistic electronic-structure calculations for molecules

c © 2000 by John von Neumann Institute for Computing Permission to make digital or hard copies of portions of this work for personal or classroom use is granted provided that the copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise requires prior specific permission by the publisher ment...

متن کامل

ذخیره 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: Physical Review B

سال: 1999

ISSN: 0163-1829,1095-3795

DOI: 10.1103/physrevb.60.11329