Topological states of thermoelectric Yb-filled skutterudites
文献类型：期刊论文
| 作者 | Pang, HongJie; Yu, Hao; Li, WeiJian; Chen, LiuCheng; Qiu, PengFei; Peng Q(彭庆); Chen, XiaoJia |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2023-03 |
| 卷号 | 107期号:12页码:125202 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.107.125202 |
| 英文摘要 | 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. |
| 分类号 | 二类 |
| WOS研究方向 | WOS:000972608800003 |
| 语种 | 英语 |
| 资助机构 | National Key R&D Program of China at HPSTAR [2018YFA0305900] ; Shenzhen Science and Technology Program [KQTD20200820113045081] ; Basic Research Program of Shenzhen at HIT [JCYJ20200109112810241] |
| 其他责任者 | Chen, XJ |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92283]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.(Li Wei-Jian) Nanjing Univ Natl Lab Solid State Microstruct Nanjing 210093 Peoples R China 2.(Qiu Peng-Fei) Chinese Acad Sci Shanghai Inst Ceram State Key Lab High Performance Ceram & Superfine M Shanghai 200050 Peoples R China 3.(Pang Hong-Jie) Shanghai Jiao Tong Univ Sch Phys & Astron Key Lab Artificial Struct & Quantum Control Minist Educ Shanghai 200240 Peoples R China 4.(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 5.(Peng Qing) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China 6.(Yu Hao, Chen Liu-Cheng, Peng Qing, Chen Xiao-Jia) Harbin Inst Technol Sch Sci Shenzhen 518055 Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：力学研究所
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