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We present calculations for the temperature-dependent electronic structure and magnetic properties of thin ferromagnetic EuO films. The treatment is based on a combination of a multiband-Kondo lattice model with first-principles TB-LMTO…

Strongly Correlated Electrons · Physics 2009-11-07 R. Schiller , W. Mueller , W. Nolting

The lattice thermal conductivity ($\kappa_{\ell}$) is a key materials property in power electronics, thermal barriers, and thermoelectric devices. Identifying a wide pool of compounds with low $\kappa_{\ell}$ is particularly important in…

Materials Science · Physics 2023-09-14 Rasmus Tranås , Ole Martin Løvvik , Kristian Berland

Employing the first-principles computations based on the density functional theory (DFT), we have investigated the structural, mechanical, electronic, bonding, optical and thermodynamics properties of newly discovered bulk superconductors…

Materials Science · Physics 2018-02-01 Md. Atikur Rahman , Md. Zahidur Rahaman , Md. Lokman Ali , Md. Shahjahan Ali

Synchrotron-based angle-resolved photoemission spectroscopy is used to determine the electronic structure of layered SnSe, which was recently turned out to be a potential thermoelectric material. We observe that the top of the valence band…

In this research, we examine the electronic, magnetic, and lattice properties of the Fe$_4$(P$_2$O$_7$)$_3$ compound using the first principles calculations based on the density functional theory. The crystal lattice has a monoclinic…

Materials Science · Physics 2025-03-20 Svitlana Pastukh , Pawel T. Jochym , Jan Lazewski , Dominik Legut , Przemyslaw Piekarz

The thermoelectric properties of half-Heusler alloy TiNiSn have been studied for decade, however, theoretical report on its thermal conductivity is still little known, because it is difficult to estimate effectively the lattice thermal…

Materials Science · Physics 2015-06-11 Guangqian Ding , G. Y. Gao , K. L. Yao

To gain insight into the peculiar temperature dependence of the thermoelectric material SnSe, we employ many-body perturbation theory and explore the influence of the electron-phonon interaction on its electronic and transport properties.…

Materials Science · Physics 2019-05-23 Fabio Caruso , Maria Troppenz , Santiago Rigamonti , Claudia Draxl

The quest to govern the driving forces behind superconductivity and gain control over the superconducting transition temperature $T_{c}$ is as old as the phenomenon itself. Microscopically, this requires a proper understanding of the…

Superconductivity · Physics 2022-11-02 M. Kriener , M. S. Bahramy , Y. Tokura , Y. Taguchi

The thermoelectric power, $S(T)$, of the heavy fermions YbT$_{2}$Zn$_{20}$ ($T$ = Fe, Ru, Os, Ir, Rh, and Co) has been measured to characterize their strong electronic correlations. A large, negative, local minimum in $S(T)$ with…

Strongly Correlated Electrons · Physics 2015-05-19 E. D. Mun , S. Jia , S. L. Bud'ko , P. C. Canfield

The localized-to-itinerant transition of f electrons lies at the heart of heavy-fermion physics, but has only been directly observed in single-layer Ce-based materials. Here, we report a comprehensive study on the electronic structure and…

Strongly Correlated Electrons · Physics 2019-02-18 Q. Yao , D. Kaczorowski , P. Swatek , D. Gnida , C. H. P. Wen , X. H. Niu , R. Peng , H. C. Xu , P. Dudin , S. Kirchner , Q. Y. Chen , D. W. Shen , D. L. Feng

We present an investigation on electronic structure of 1T-TiTe2 material via high-resolution angle-resolved photoemission spectroscopy (ARPES), utilizing tunable photon energy excitations. The typical semimetal-like electronic structure is…

Strongly Correlated Electrons · Physics 2019-03-27 Xiao-Fang Tang , Yu-Xia Duan , Fan-Ying Wu , Shu-Yu Liu , Chen Zhang , Yin-Zou Zhao , Jiao-Jiao Song , Yang Luo , Qi-Yi Wu , Jun He , H. Y. Liu , Wen Xu , Jian-Qiao Meng

In the ongoing search for innovative thermoelectric (TE) materials with superior TE performance globally, we aim to investigate the possible use of half-Heusler alloy CoHfSi in TE applications. We analyzed the structure stability,…

Materials Science · Physics 2025-06-27 Sadhana Matth , S. Pandey , Himanshu Pandey

The thermodynamic properties of hcp-iron ({\epsilon}-Fe) are essential for investigating planetary cores' internal structure and dynamic properties. Despite their importance to planetary sciences, experimental investigations of…

Materials Science · Physics 2021-04-21 Jingyi Zhuang , Hongjin Wang , Qi Zhang , Renata M. Wentzcovitch

The large variety of complex electronic structure materials and their alloys, offer highly promising directions for improvements in thermoelectric (TE) power factors (PF). Their electronic structure contains rich features, referred to as…

Materials Science · Physics 2023-11-08 Patrizio Graziosi , Neophytos Neophytou

We studied the diffusion coefficient of hot electrons of GaN crystals in moderate electric (1...10 kV/cm) and magnetic (1...4 T) fields. Two configurations, parallel and crossed fields, are analysed. The study was carried out for…

Materials Science · Physics 2019-04-19 G. I. Syngayivska , V. V. Korotyeyev , V. A. Kochelap

The structure, lattice dynamics and mechanical properties of the magnesium hydroxide have been investigated with static density functional theory calculations as well as \it {ab initio} molecular dynamics. The hypothesis of a superstructure…

The density of states and chemical potential as functions of temperature and filling degree of energy band were calculated. It was shown the peculiarity of concentration and temperature behavior of chemical potential is stipulated by Fermi…

Materials Science · Physics 2012-05-29 B. V. Karpenko , A. V. Kuznetsov , A. A. Bogolubova

Taking into considerations the wide compositional stretch of Heusler alloys, the first principles density functional theory based calculations are excellently suitable for estimating the multifaceted properties of alkali metal based LiVSb…

Materials Science · Physics 2024-07-03 Diwaker , Shyam L. Gupta , Anupam , Sumit Kumar , Aadil Fayaz , Ashwani Kumar

Electric fields commonly exist in semiconductor structures of electronics, bringing to bear on phonon thermal transport. Also, it is a popular method to tune thermal transport in solids. In this work, phonon and thermal transport properties…

Materials Science · Physics 2021-07-28 Dao-Sheng Tang , Bing-Yang Cao

We report about detailed dimensionless figure of merit ($ZT$) calculated by using Fermi integral method (compared with Bi$_2$Te$_3$, CoSb$_3$, and SrTiO$_3$) for thermoelectric (TE) materials' design and its module application.…

Materials Science · Physics 2020-03-05 Hirofumi Kakemoto