Results 71 to 80 of about 15,456 (247)

Thermoelectric Property Mapping for High‐Performance Integrated MgAgSb‐MgCuSb System

Advanced Science, EarlyView.
From the property mapping of the MgAgSb–MgCuSb system, both thermoelectric materials and corresponding interface materials are optimized: Ag‐rich compositions provide higher PF and zT, whereas Cu‐rich side yields superior transport properties and low contact resistance.
Jiankang Li, Airan Li, Longquan Wang, Xinzhi Wu, Raju Chetty, Takao Mori   +5 more
wiley   +1 more source

Magnetism in tetragonal manganese-rich Heusler compounds

, 2015
A comprehensive study of the total energy of manganese-rich Heusler compounds using density functional theory is presented. Starting from a large set of cubic parent systems, the response to tetragonal distortions is studied in detail.
Chadov, Stanislav, Felser, Claudia, Kübler, Jürgen, Wollmann, Lukas   +3 more
core   +1 more source

Advances in Thermoelectric Thin Films Grown by Atomic Layer Deposition: A Critical Review of Performance and Challenges

Advanced Energy Materials, EarlyView.
This review highlights the use of atomic layer deposition (ALD) for fabricating thermoelectric thin films with atomic‐scale control. Four material classes—chalcogenides, doped oxides, ternary oxides, and multilayered structures—are compared in terms of growth dynamics, structure–property relationships, and thermoelectric performance. The precise tuning
Jorge Luis Vazquez‐Arce, Dong‐Ho Shin, Shuyue Yao, Shiyang He, Kornelius Nielsch, Amin Bahrami   +5 more
wiley   +1 more source

Accelerated Screening of Halide Double Perovskites via Hybrid Density Functional Theory and Machine Learning for Thermoelectric Energy Conversion

Advanced Energy and Sustainability Research, EarlyView.
This study integrates hybrid density functional theory, Boltzmann transport theory, and machine learning to accelerate the discovery of lead‐free halide double perovskites for thermoelectric energy conversion. By screening 102 compounds, the authors identify high‐performing candidates such as Rb2GeI6 and Cs2SnBr6, offering a sustainable pathway toward ...
Souraya Goumri‐Said, Ghouti Abdellaoui, Mohammed Benali Kanoun   +2 more
wiley   +1 more source

Half-Heusler based multicomponent alloys for high temperature thermoelectric applications [PDF]

, 2023
Soumya Ranjan Mishra
openalex   +1 more source

Isoelectronic Alloying in Zintl Phases Mediated the Avoided Crossing and Phonon Softening

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A small amount of Hf doping endows Zr3Ni3Sb4‐Zintl with an unusually low thermal conductivity far exceeding that of similar systems. Two unique phonon mechanisms—avoided crossing and phonon softening—significantly suppress the lattice thermal conductivity. The average thermoelectric figure of merit is improved by 21%.
Zesong Wang, Xiang Wei, Ran Guo, Shun Han, Weihong Gao, Yu‐dong Fu, Zihang Liu   +6 more
wiley   +1 more source

Combinatorial optimization for high spin polarization in Heusler alloy composition-spread thin films by anisotropic magnetoresistance effect

APL Materials, 2023
Half-metallic Heusler alloys are promising candidates for spintronic applications due to their high spin polarization. However, the spin polarization strongly depends on the atomic composition, which is time-consuming to optimize from various ...
Ryo Toyama, Varun K. Kushwaha, Taisuke T. Sasaki, Yuma Iwasaki, Tomoya Nakatani, Yuya Sakuraba   +5 more
doaj   +1 more source

Balancing the Competing Effects of Carrier and Phonon Transport Mechanisms to Enhance the Thermoelectric Properties of p‐Type Ti2Zr2−xHf2Nb2Fe5.6Ni2.4Sb8 Double Half‐Heusler Alloys via Cation Vacancy Engineering

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By designing Zr vacancy‐filled p‐type Ti2Zr2Hf2Nb2Fe5.6Ni2.4Sb8‐based thermoelectric materials, multi‐physics mechanisms and multi‐scale microstructural defects are induced to optimize electrical properties and phonon transport while suppressing the bipolar diffusion effect.
Chaoyue Wang, Mina Zhang, Longjun He, Shengpan Kan, Ruyan Song, Degang Zhao, Jinghao Li, Daoyong Cong, Xianglin Zhou   +8 more
wiley   +1 more source

Anti-site disorder and improved functionality of Mn$_{2}$Ni{\it X} ({\it X}= Al, Ga, In, Sn) inverse Heusler alloys

, 2014
Recent first-principles calculations have predicted Mn$_{2}$Ni{\it X} ({\it X}=Al, Ga, In, Sn) alloys to be magnetic shape memory alloys. Moreover, experiments on Mn$_{2}$NiGa and Mn$_{2}$NiSn suggest that the alloys deviate from the perfect inverse ...
Ghosh, Subhradip, Kundu, Ashis, Paul, Souvik, Sanyal, Biplab   +3 more
core   +1 more source

Fabrication‐Driven Oxidation Pathways in Y/Hf‐Modified High‐Entropy Alloys: From Elemental Segregation to Oxide Homogeneity

Rare Metals, EarlyView.
ABSTRACT This study elucidates the oxidation mechanisms governing Y/Hf‐doped AlCoCrFeNiTi high‐entropy alloys (HEAs) and reveals the pivotal role of fabrication processes in dictating high‐temperature oxidation behavior. We demonstrate that casting and spark plasma sintering (SPS) promote Y/Hf segregation, resulting in heterogeneous oxide formation and
Huaqing Yi, Jiapeng Zheng, Jiawen Zhang, Yi Yang, Binbin He, Wenjun Lu   +5 more
wiley   +1 more source