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相关论文: Thermoelectric properties of Half-Metallic FeMnScG…

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By combining the electronic structures obtained from first principles calculations with Boltzmann transport theory we have investigated the electronic, magnetic and transport properties of Co$_{2}$MnGe Heusler compound. The density of…

材料科学 · 物理学 2014-06-16 Sonu Sharma , Sudhir K. Pandey

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…

强关联电子 · 物理学 2020-12-02 Saurabh Singh , Shubham Singh , Nitinkumar Bijewar , Ashish Kumar

Heavily doped semiconductors are by far the most studied class of materials for thermoelectric applications in the past several decades. They have Seebeck coefficient values which are 2-3 orders of magnitude higher than metals, making them…

材料科学 · 物理学 2019-09-11 Maxime Markov , Emad Rezaei , Safoura Nayeb Sadeghi , Keivan Esfarjani , Mona Zebarjadi

Thermoelectricity in principle provides a pathway to put waste heat to good use. Motivated by this we investigate thermal and electrical transport properties of two new Fe-based Heusler alloys, FeTaSb and FeMnTiSb, by a first principles…

材料科学 · 物理学 2018-06-26 Mohd Zeeshan , Tashi Nautiyal , Jeroen van den Brink , Hem C. Kandpal

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…

强关联电子 · 物理学 2020-12-30 Shivprasad S. Shastri , Sudhir K. Pandey

The alloys with 8/18/24 valence electron count (VEC) are promising candidates for efficient energy conversion and refrigeration applications at low as well as high temperatures. The full potential linearized augmented plane wave method as…

材料科学 · 物理学 2022-05-17 Mukesh K. Choudhary , H. Fjellvåg , P. Ravindran

The thermoelectric figure of merit of the Heusler alloy TiFe$_{1.5}$Sb was investigated by first-principles calculations of lattice thermal conductivity. The electronic thermal conductivity, electrical conductivity, and Seebeck coefficient…

材料科学 · 物理学 2025-05-27 Rifky Syariati , Athorn Vora-ud , Fumiyuki Ishii , Tosawat Seetawan

Structural, electronic, and transport properties of ScNiSb, ScPdSb, and ScPtSb were investigated from first principles. Electronic band structures derived within the fully relativistic MBJLDA approach were compared with those obtained from…

材料科学 · 物理学 2018-06-05 Maciej J. Winiarski , Kaja Bilinska , Kamil Ciesielski , Dariusz Kaczorowski

The present work investigates the less explored thermoelectric properties of n-type GaN semiconductors by combined both the experimental and computational tools. Seebeck coefficients of epitaxial thin films of GaN were experimentally…

材料科学 · 物理学 2021-02-24 Ashish Kumar , Saurabh Singh , Ashutosh Patel , K. Asokan , D. Kanjilal

Using first-principles method and Boltzmann theory, we provide an accurate prediction of the electronic band structure and thermoelectric transport properties of alpha-MgAgSb. Our calculations demonstrate that only when an appropriate…

材料科学 · 物理学 2016-06-22 C. Y. Sheng , H. J. Liu , D. D. Fan , L. Cheng , J. Zhang J. Wei , J. H. Liang , P. H. Jiang , J. Shi

We explore the structural, electronic, mechanical and thermoelectric properties of a new half Heusler compound, HfPtPb which is all metallic heavy element and has been recently been proposed to be stable [Nature Chem 7 (2015) 308]. In the…

材料科学 · 物理学 2017-05-12 Kulwinder Kaur , D. P. Rai , R. K. Thapa , Sunita Srivastava

In this work, we try to understand the experimental thermoelectric (TE) properties of a ZrNiSn sample with DFT and semiclassical transport calculations using SCAN functional. SCAN and mBJ provide the same band gap $E_{g}$ of $\sim$0.54 eV.…

强关联电子 · 物理学 2020-06-24 Shivprasad S. Shastri , Sudhir K. Pandey

Here, we investigate the thermoelectric properties of the marcasite-type compounds MSb$_2$ (M = Ta, Nb) in the temperature range of 310-730 K. These compounds were synthesized by a solid-state reaction followed by the spark plasma sintering…

材料科学 · 物理学 2024-03-20 Shamim Sk , Naoki Sato , Takao Mori

Unlike in conventional semiconductors, both the chemical potential and the band gap in bilayer graphene (BLG) can be tuned via application of external electric field. Among numerous device implications, this property also designates BLG as…

介观与纳米尺度物理 · 物理学 2019-07-16 Dominik Suszalski , Grzegorz Rut , Adam Rycerz

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,…

材料科学 · 物理学 2025-06-27 Sadhana Matth , S. Pandey , Himanshu Pandey

In this paper, we have performed first principles calculations to study optoelectronic, thermodynamic and transport properties of Fe2TiGe using density functional theory (DFT). The semi-classical Boltzmann transport theory is used to…

材料科学 · 物理学 2019-05-07 M. Anwar Hossain , M. A. Al Noman , Md. Taslimur Rahman

We have investigated the electronic and thermoelectric properties of half-Heusler alloys NiTZ (T = Sc, and Ti; Z = P, As, Sn, and Sb) having 18 valence electron. Calculations are performed by means of density functional theory and Boltzmann…

We have combined the Boltzmann transport equation with an {\it ab initio} approach to compute the thermoelectric coefficients of semiconductors. Electron-phonon, ionized impurity, and electron-plasmon scattering rates have been taken into…

材料科学 · 物理学 2018-10-26 Z. Wang , S. Wang , S. Obukhov , N. Vast , J. Sjakste , V. Tyuterev , N. Mingo

Resistivity, Hall effect, Seebeck coefficient, thermal conductivity, heat capacity, and magnetic susceptibility data are reported for CrSb2 single crystals. In spite of some unusual features in electrical transport and Hall measurements…

Lead chalcogenides are the promising thermoelectric (TE) materials having narrow band gap. The present work investigates the TE behaviour of PbSe in the temperature range 300-500 K. The transport properties of the sample have been studied…

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