The role of magnetic interaction on the thermoelectric performance of ZrNiSn half‐Heusler alloys

2022 ◽  
Author(s):  
Kishor Kumar Johari ◽  
Sivaiah Bathula ◽  
Bhasker Gahtori
Keyword(s):  
Heusler Alloys ◽  
Magnetic Interaction ◽  
Thermoelectric Performance

scholarly journals Key Role of Defects in Thermoelectric Performance of TiMSn (M = Ni, Pd, and Pt) Half-Heusler Alloys

2020 ◽  
Vol 124 (28) ◽  
pp. 14997-15006
Author(s):  
Atreyi Dasmahapatra ◽  
Loredana Edith Daga ◽  
Antti J. Karttunen ◽  
Lorenzo Maschio ◽  
Silvia Casassa
Keyword(s):  
Heusler Alloys ◽  
Thermoelectric Performance

High Thermoelectric Performance in n-Type Degenerate ZrNiSn-Based Half-Heusler Alloys Driven by Enhanced Weighted Mobility and Lattice Anharmonicity

2021 ◽  
Author(s):  
Kishor Kumar Johari ◽  
Ruchi Bhardwaj ◽  
Nagendra S. Chauhan ◽  
Sivaiah Bathula ◽  
Sushil Auluck ◽  
...  
Keyword(s):  
Heusler Alloys ◽  
Thermoelectric Performance

scholarly journals The role of Ni-Mn hybridization on the martensitic phase transitions in Mn-rich Heusler alloys

2012 ◽  
Vol 100 (17) ◽  
pp. 172403 ◽  
Author(s):  
Mahmud Khan ◽  
J. Jung ◽  
S. S. Stoyko ◽  
Arthur Mar ◽  
Abdiel Quetz ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Heusler Alloys ◽  
Martensitic Phase ◽  
Martensitic Phase Transitions

Investigations on structural, magnetic and calorimetric properties of Co2FeSi1−xBx (x = 0–0.5) Heusler alloys: Role of boron

2019 ◽  
Vol 490 ◽  
pp. 165528 ◽  
Author(s):  
M. Ramudu ◽  
M. Manivel Raja ◽  
Himalay Basumatary ◽  
S.V. Kamat
Keyword(s):  
Heusler Alloys

scholarly journals Observation of enhanced thermopower due to spin fluctuation in weak itinerant ferromagnet

2019 ◽  
Vol 5 (2) ◽  
pp. eaat5935 ◽  
Author(s):  
Naohito Tsujii ◽  
Akinori Nishide ◽  
Jun Hayakawa ◽  
Takao Mori
Keyword(s):  
Power Factor ◽  
Waste Heat ◽  
Spin Fluctuation ◽  
Heusler Alloys ◽  
Magnetic Interaction ◽  
Weak Ferromagnetism ◽  
Thermoelectric Power Factor ◽  
Ferromagnetic Metals ◽  
Itinerant Ferromagnet ◽  
Increasing Demand

Increasing demand for higher energy efficiency calls for waste heat recovery technology. Thus, facilitating practical thermoelectric generation systems is strongly desired. One option is enhancing the thermoelectric power factor, S2/r, where S is the Seebeck coefficient and r is the electrical resistivity, although it is still challenging because of the trade-off between S and r. We demonstrate that enhanced S2/r can be achieved by incorporating magnetic interaction in ferromagnetic metals via the spin fluctuation arising from itinerant electrons. We show that electron-doped Heusler alloys exhibit weak ferromagnetism at TC near room temperature with a small magnetic moment. A pronounced enhancement around TC was observed, with a 20% improvement in the power factor from the case where spin fluctuation is suppressed by applying magnetic field. This result supports the merit of using spin fluctuation to further enhance thermoelectric properties and the potential to further probe correlations and synergy between magnetic and thermoelectric fields.

Enhanced Thermoelectric Performance in Hf-Free p-Type (Ti, Zr)CoSb Half-Heusler Alloys

2019 ◽  
Vol 48 (10) ◽  
pp. 6700-6709 ◽  
Author(s):  
Nagendra S. Chauhan ◽  
Sivaiah Bathula ◽  
Bhasker Gahtori ◽  
Yury V. Kolen’ko ◽  
Ajay Dhar
Keyword(s):  
Heusler Alloys ◽  
Thermoelectric Performance ◽  
P Type

Significant role of nanoscale Bi-rich phase in optimizing thermoelectric performance of Mg3Sb2

2020 ◽  
Vol 29 (6) ◽  
pp. 067201 ◽  
Author(s):  
Yang Wang ◽  
Xin Zhang ◽  
Yan-Qin Liu ◽  
Jiu-Xing Zhang ◽  
Ming Yue
Keyword(s):  
Significant Role ◽  
Thermoelectric Performance ◽  
Rich Phase

scholarly journals High Power Factor and Enhanced Thermoelectric Performance in Sc and Bi Codoped GeTe: Insights into the Hidden Role of Rhombohedral Distortion Degree

2020 ◽  
Vol 10 (42) ◽  
pp. 2002588 ◽  
Author(s):  
Zihang Liu ◽  
Weihong Gao ◽  
Wenhao Zhang ◽  
Naoki Sato ◽  
Quansheng Guo ◽  
...  
Keyword(s):  
Power Factor ◽  
High Power ◽  
Thermoelectric Performance ◽  
Rhombohedral Distortion ◽  
High Power Factor
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