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We report the electronic structure of the iron-chalcogenide superconductor, Fe1.04(Te0.66Se0.34), obtained with high resolution angle-resolved photoemission spectroscopy and density functional calculations. In photoemission measurements,…

We present electronic band structure of Ag$_5$Pb$_2$O$_6$ with layered hexagonal structure containing one-dimensional chains and two-dimensional Kagom\'{e} layers of silver. A half-filled conduction band shows extremely simple, single…

Strongly Correlated Electrons · Physics 2009-11-11 Tamio Oguchi

Transition-metal-based Heusler semiconductors are promising materials for a variety of applications ranging from spintronics to thermoelectricity. Employing the $GW$ approximation within the framework of the FLAPW method, we study the…

Materials Science · Physics 2016-06-01 M. Tas , E. Sasioglu , I. Galanakis , C. Friedrich , S. Blugel

Solar energy conversion to produce electricity using photovoltaics is an emerging area in alternative energy research. Herein, we report on the basis of density functional calculations, phosphorene/AsP heterostructure could be a promising…

Materials Science · Physics 2017-10-16 M. R. Ashwin Kishore , P. Ravindran

The band structure of the novel low-temperature thermoelectric material, \CBT, is calculated and analyzed using the semi-classic transport equations. It is shown that to obtain a quantitative agreement with measured transport properties a…

Materials Science · Physics 2007-05-23 Lars Lykke , Bo B. Iversen , Georg K. H. Madsen

By means of the first-principles density functional theory (DFT), I2-II-IV-VI4 type Cu-based quaternary chalcogenides Cu 2 XSiS 4 (X = Ge, Sn, and Pb) have been thoroughly investigated. We report the study of Ge and Sn substitution in the…

Materials Science · Physics 2025-09-26 H. Laltlanmawii , L. Celestine , R. Zosiamliana , B. Chettri , S. Bhattarai , K. C. Bhamu , D. P. Rai

CsPbI3 has recently received tremendous attention as a possible absorber of perovskite solar cells (PSCs). However, CsPbI3-based PSCs have yet to achieve the high performance of the hybrid PSCs. In this work, we performed a density…

The rapid growth of the solar energy industry has produced a strong demand for high performance, efficient photoelectric materials. Many ferroelectrics, composed of earth-abundant elements, are useful for solar cell applications due to…

Materials Science · Physics 2016-06-13 Radi A. Jishi , Marcus A. Lucas

The quasiparticle (QP) band structures of both strainless and strained monolayer MoS$_{2}$ are investigated using more accurate many body perturbation \emph{GW} theory and maximally localized Wannier functions (MLWFs) approach. By solving…

Materials Science · Physics 2013-04-10 Hongliang Shi , Hui Pan , Yong-Wei Zhang , Boris I. Yakobson

We study the electronic structure of a Pauli paramagnetic compound, La(2)CoSi(3) using photoemission spectroscopy and ab initio band structure calculations. Experimental valence band spectra exhibit signature of electron correlation induced…

Strongly Correlated Electrons · Physics 2014-11-05 Swapnil Patil , Garima Saraswat , Ganesh Adhikary , R. Bindu , E. V. Sampathkumaran , Kalobaran Maiti

In this work, we have studied the electronic structure of a promising thermoelectric half-Heusler FeVSb using FP-LAPW method and SCAN meta-GGA including spin-orbit coupling. Using the obtained electronic structure and transport calculations…

Strongly Correlated Electrons · Physics 2020-12-30 Shivprasad S. Shastri , Sudhir K. Pandey

We report LDA calculated band structure, densities of states and Fermi surfaces for recently discovered Pt-pnictide superconductors APt3P (A=Ca,Sr,La), confirming their multiple band nature. Electronic structure is essentially three…

Superconductivity · Physics 2015-03-20 I. A. Nekrasov , M. V. Sadovskii

The electronic structure of fluorite crystals are studied by means of density functional theory within the local density approximation for the exchange correlation energy. The ground-state electronic properties, which have been calculated…

Materials Science · Physics 2011-08-01 Emiliano Cadelano , Giancarlo Cappellini

We present an angle-resolved photoemission spectroscopy study of the electronic structure of SnTe, and compare the experimental results to ab initio band structure calculations as well as a simplified tight-binding model of the p-bands. Our…

As a second part of a previous paper, here the calculated electronic band structure of ideal Pt(100) and Pt(110) surfaces, studied using density functional theory and the empirical tight-binding method, is presented. A detailed discussion…

Materials Science · Physics 2015-03-17 H. J. Herrera-Suarez , A. Rubio-Ponce , D. Olguin

Electronic and optical properties of semiconducting FeSe2 polymorphs (marcasite and pyrite) were evaluated using density functional theory with norm-conserving pseudopotential. Marcasite and pyrite of FeSe2 show indirect band gaps of 0.86…

Materials Science · Physics 2013-03-07 B. G. Ganga , C. Ganeshraj , A. Gopal Krishna , P. N. Santhosh

Using machine learning (ML) approach, we unearthed a new III-V semiconducting material having an optimal bandgap for high efficient photovoltaics with the chemical composition of Gallium-Boron-Phosphide(GaBP$_2$, space group: Pna2$_1$). ML…

The structural, electronic, optical and transport properties of X3NbY4(X= Cu, Ag, Au; Y=S, Se, Te) sulvanite chalcogenides materials have been investigated using the Full Potential Linear Augmented Plane wave (FP-LAPW) within the density…

Materials Science · Physics 2026-03-13 Sadeya Sabnam Emo , Md. Sharear Aman , Md. Abdur Rashid , Jaker Hossain

We have performed x-ray photoemission spectroscopy on the system of noncentrosymmetric superconductor, Li$_2$(Pd$_x$Pt$_{1-x}$3)B. For Li$_2$Pt$_3$B, we found 2 major peaks with 2 other weak components, and the band calculations were in…

The LnSbTe family is well known for hosting a plethora of intriguing characteristics stemming from its crystalline symmetry, magnetic structure, 4f electronic correlations and spin orbit coupling (SOC) phenomena. In this paper, we have…