in order to study some theories about nonsuperconductivity of prba2cu3o7, based on the density functional theory and with apw+lo/lapw method some calculations for prba2cu3o7 (pr123) and yba2cu3o7 (y123) were performed. the lsda+u approximation was used for pr(4f) orbitals and the effect of changing upr on the band structure, pr(4f)-dos, distribution of electrons on the planes and chains, and pr...

Atomic forces formulation based on the Dirac-Kohn-Sham equation and flexible (APW+lo/LAPW)+LO basis set is presented. The was implemented in code FlapwMBPT allows a user to easily switch between different functions of augmentation type (APW or LAPW) kind local orbitals. Similar work (Phys.Rev.B 91 (2015) 035105), implementation takes into account small discontinuities wave functions, density, p...

Abstract Linearized augmented planewaves combined with local-orbitals (LAPW + lo) are arguably the most precise basis set to represent Kohn–Sham states. When employed within real-time time-dependent density functional theory (RT-TDDFT), they promise ultimate precision achievable for exploring evolution of electronic excitations. In this work, we present an implementation RT-TDDFT in full-potent...

BACKGROUND The left atrial posterior wall (LAPW) is potentially an important area for the development and maintenance of atrial fibrillation. We assessed whether there are regional electrical differences throughout the murine left atrial myocardium that could underlie regional differences in arrhythmia susceptibility. METHODS We used high-resolution optical mapping and sharp microelectrode re...

First-principles electronic structure calculations have been very useful in understanding some of the properties of the new iron-based superconductors. Further explorations of the role of the individual atomic orbitals in explaining various aspects of research in these materials, including experimental work, would benefit from the availability of a tight-binding(TB) Hamiltonian that reproduces ...

It has been found that the pulmonary veins and adjacent left atrial posterior wall (LAPW) are deeply involved in both the initiation and maintenance of atrial fibrillation (AF), and the identification of these high-risk sites has aroused great interest in investigating their histopathologic substrate. We used light and conventional electron microscopy to evaluate the differential myocyte and in...

BACKGROUND Recognizing the relative location of the esophagus to the left atrial posterior wall (LAPW) is required to avoid esophageal injury during atrial fibrillation ablation. METHODS AND RESULTS The 24 patients undergoing circumferential pulmonary vein isolation (CPVI) each had the geometry of their left atrium (LA) and esophagus constructed by a noncontact mapping system with EnSite vers...