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The band structure and electronic properties in a series of vinylene-linked heterocyclic conducting polymers are investigated using density functional theory (DFT). In order to accurately calculate electronic band gaps, we utilize hybrid…

Materials Science · Physics 2015-03-13 Bryan M. Wong , Joseph G. Cordaro

In this study, theoretical investigation on structural, electronic, magnetic, elastic and thermoelectric properties of the full Heusler Co$_2$YPb (Y = Tc, Ti, Zr and Hf) alloys have been performed within density functional theory (DFT). The…

Materials Science · Physics 2025-12-29 N. Saidi , A. Abbad , W. Benstaali , K. Bahnes

In this work, we have investigated the electronic structure and thermoelectric properties of quaternary heusler alloy, FeRuTiSi, using first principle DFT tools implemented in WIEN2k and BoltzTraP code. Electronic structure calculations…

Strongly Correlated Electrons · Physics 2020-12-02 Saurabh Singh , Shubham Singh , Nitinkumar Bijewar , Ashish Kumar

Normally, understanding the temperature dependent transport properties of strongly correlated electron systems remains challenging task due to complex electronic structure and its variations (around E$_{F}$) with temperature. Here, we…

Strongly Correlated Electrons · Physics 2017-03-21 Saurabh Singh , Devendra Kumar , Sudhir K. Pandey

Materials with linear electronic dispersion often feature high carrier mobilities and unusually strong nonlinear optical interactions. In this work, we investigate the THz nonlinear dynamics of one such material, HgCdTe, with an electronic…

The room temperature ``metallic'' properties of the quasi-one-dimensional charge density wave system (TaSe4)2I differ markedly from those expected of either a Fermi or a Luttinger Liquid. We discuss evidence for the simplest possible…

Strongly Correlated Electrons · Physics 2015-06-25 Nic Shannon , Robert Joynt

We synthesized the ferromagnetic EuAgP semiconductor and conducted a comprehensive study of its crystalline, magnetic, heat capacity, band gap, and magnetoresistance properties. Our investigation utilized a combination of X-ray diffraction,…

Strongly Correlated Electrons · Physics 2024-09-04 Qian Zhao , Kaitong Sun , Si Wu , Hai-Feng Li

This work presents a comprehensive investigation of the HH alloy NaVAs using first - principles methods, emphasizing its potential applications in various fields, including spintronics, thermoelectrics, and optoelectronics. We utilized…

Materials Science · Physics 2025-09-09 Rajinder Singh , Shyam Lal Gupta , Sumit Kumar , Lalit Abhilashi , Diwaker , Ashwani Kumar

We study the electronic structure and thermoelectric properties of recently synthesized CoAsSb. The calculated bandgap becomes more accurate for increasingly-complex electronic structure methods: generalized gradient approximation, hybrid…

Materials Science · Physics 2020-02-03 Andrey L. Kutepov , Anthony Ruth

The discovery of nonmagnetic Weyl semimetals (WSMs) in TaAs compounds has triggered lots of efforts in finding its magnetic counterpart. While the direct observation of the Weyl nodes and Fermi arcs in a magnetic candidate through…

Superconductivity · Physics 2020-02-26 Run Yang , Tan Zhang , Liqin Zhou , Yaomin Dai , Zhiyu Liao , Hongming Weng , Xianggang Qiu

Germanium telluride (GeTe) having a direct bandgap of 0.6 eV has mainly been in phase change memory and thermoelectric power generation. In this article, we study the electronic structure of the GeTe by first-principles calculations. The…

Materials Science · Physics 2023-01-24 Ahnaf Tahmid Abir , Bipanko Kumar Mondal , Jaker Hossain

Intermetallic semiconductors with the cubic Half-Heusler structure (XYZ) have excellent thermoelectric properties. This has been attributed to the high degeneracy of the carrier pockets in the band structure, but large differences are found…

Materials Science · Physics 2021-07-21 Kasper Tolborg , Bo B. Iversen

We investigated the temperature-dependent evolution of the electronic structure of the Jeff,1/2 Mott insulator Sr2IrO4 using optical spectroscopy. The optical conductivity spectra $\sigma(\omega)$ of this compound has recently been found to…

Strongly Correlated Electrons · Physics 2009-10-23 S. J. Moon , Hosub Jin , W. S. Choi , J. S. Lee , S. S. A. Seo , J. Yu , G. Cao , T. W. Noh , Y. S. Lee

MOSFETs based on wide band-gap semiconductors are suitable for operations at high temperature, at which additional atomic-scale processes that are benign at lower temperatures can get activated which results in device degradation. Recently…

Materials Science · Physics 2016-06-13 Xiao Shen , Sarit Dhar , Sokrates T. Pantelides

A simple two-band model is used to describe the magnitude and temperature dependence of the magnetic susceptibility, Hall coefficient and Seebeck data from undoped and Co doped BaFe2As2. Overlapping, rigid parabolic electron and hole bands…

Superconductivity · Physics 2010-02-26 Brian Sales , Michael McGuire , Athena Sefat , David Mandrus

It is known in the literature that InGaP alloy synthesized within a certain range of growth temperature (520 - 720 degree Centrigrade) shows Cu-Pt crystal ordering. This ordering reduces the band gap energy . It was predicted that the…

Materials Science · Physics 2009-09-25 Shouvik Datta , M. R. Gokhle , A. P. Shah , T. K. Sharma , B. M. Arora

Temperature evolution of the 2H-TaSe2 Fermi surface (FS) is studied by high-resolution angle-resolved photoemission spectroscopy (ARPES). High-accuracy determination of the FS geometry was possible after measuring electron momenta and…

Strongly Correlated Electrons · Physics 2009-03-20 D. S. Inosov , D. V. Evtushinsky , V. B. Zabolotnyy , A. A. Kordyuk , B. Buechner , R. Follath , H. Berger , S. V. Borisenko

The electronic, structural, optical, and thermoelectric properties of the Cs2O cubic structure have been investigated using density functional theory (DFT). The calculations utilize a full relativistic version of the full-potential…

Materials Science · Physics 2024-06-11 Anjali Kumari , Kamal Kumar , Abhishek Kumar Mishra , Ramesh Sharma

Temperature-driven metal-insulator and pressure-driven insulator-metal transitions observed in(BEDT-TTF)8[Hg4X12(C6H5Y)2]] with X = Y = Br are studied through band structure calculations based on X-ray crystal structure determination and…

Neutron crystal-field spectroscopy experiments in the Y- and La-type high-temperature superconductors HoBa2Cu3O6.56, HoBa2Cu4O8, and La1.81Sr0.15Ho0.04CuO4 are reviewed. By this bulk-sensitive technique, information on the gap function is…

Superconductivity · Physics 2008-01-07 A. Furrer
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