| Topological states of thermoelectric Yb-filled skutterudites | |
| Pang, HongJie; Yu, Hao; Li, WeiJian; Chen, LiuCheng; Qiu, PengFei; Peng Q(彭庆); Chen, XiaoJia | |
| Source Publication | PHYSICAL REVIEW B
 |
| 2023-03 | |
| Volume | 107Issue:12Pages:125202 |
| ISSN | 2469-9950 |
| Abstract | The effects of topological states on the thermoelectric performance of a highly efficient thermoelectric Yb-filled CoSb3 skutterudite are investigated through combined ab initio calculations and electrical transport measurements. The nontrivial topological states are revealed by ab initio calculations and inferred from anoma-lous Hall conductivity and magnetoresistance. The linear bands associated with the topological states lead to low single-band effective mass and high carrier mobility, and consequently high power factor. Furthermore, the additional band minima due to filling the voids with Yb atoms raise the valley degeneracy, which favors the density-of-states effective mass and thus the Seebeck coefficient but scarcely changing the carrier mobility. These effects together contribute to the high power factor of Yb-filled CoSb3 skutterudite. Our results show that topological states play a crucial role in improving the performance of thermoelectric materials. |
| DOI | 10.1103/PhysRevB.107.125202 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000972608800003 |
| Funding Organization | National Key R&D Program of China at HPSTAR [2018YFA0305900] ; Shenzhen Science and Technology Program [KQTD20200820113045081] ; Basic Research Program of Shenzhen at HIT [JCYJ20200109112810241] |
| Classification | 二类 |
| Ranking | 3+ |
| Contributor | Chen, XJ |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92283 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.(Pang Hong-Jie) Shanghai Jiao Tong Univ Sch Phys & Astron Key Lab Artificial Struct & Quantum Control Minist Educ Shanghai 200240 Peoples R China 2.(Pang Hong-Jie, Yu Hao, Li Wei-Jian, Chen Liu-Cheng, Chen Xiao-Jia) Ctr High Pressure Sci & Technol Adv Res Shanghai 201203 Peoples R China 3.(Yu Hao, Chen Liu-Cheng, Peng Qing, Chen Xiao-Jia) Harbin Inst Technol Sch Sci Shenzhen 518055 Peoples R China 4.(Li Wei-Jian) Nanjing Univ Natl Lab Solid State Microstruct Nanjing 210093 Peoples R China 5.(Qiu Peng-Fei) Chinese Acad Sci Shanghai Inst Ceram State Key Lab High Performance Ceram & Superfine M Shanghai 200050 Peoples R China 6.(Peng Qing) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China |
| Recommended Citation GB/T 7714 | Pang, HongJie,Yu, Hao,Li, WeiJian,et al. Topological states of thermoelectric Yb-filled skutterudites[J]. PHYSICAL REVIEW B,2023,107,12,:125202. |
| APA | Pang, HongJie.,Yu, Hao.,Li, WeiJian.,Chen, LiuCheng.,Qiu, PengFei.,...&Chen, XiaoJia.(2023).Topological states of thermoelectric Yb-filled skutterudites.PHYSICAL REVIEW B,107(12),125202. |
| MLA | Pang, HongJie,et al."Topological states of thermoelectric Yb-filled skutterudites".PHYSICAL REVIEW B 107.12(2023):125202. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023A064.pdf（1537KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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