Topological electronic structure and transport properties of the distorted rutile-type WO2
We elucidate the transport properties and electronic structures of distorted rutile-type WO2. Electrical resistivity and Hall effect measurements of high-quality single crystals revealed the transport property characteristics of topological materials; these characteristics included an extremely larg...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2025-01-01
|
| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0233482 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832542712573722624 |
|---|---|
| author | Yuto Muramatsu Daigorou Hirai Mitsuaki Kawamura Susumu Minami Yoshitaka Ikeda Takahiro Shimada Keita Kojima Naoyuki Katayama Koshi Takenaka |
| author_facet | Yuto Muramatsu Daigorou Hirai Mitsuaki Kawamura Susumu Minami Yoshitaka Ikeda Takahiro Shimada Keita Kojima Naoyuki Katayama Koshi Takenaka |
| author_sort | Yuto Muramatsu |
| collection | DOAJ |
| description | We elucidate the transport properties and electronic structures of distorted rutile-type WO2. Electrical resistivity and Hall effect measurements of high-quality single crystals revealed the transport property characteristics of topological materials; these characteristics included an extremely large magnetoresistance of 13 200% (2 K and 9 T) and a very high carrier mobility of 25 700 cm2 V−1 s−1 (5 K). First-principles calculations revealed Dirac nodal lines (DNLs) near the Fermi energy in the electronic structure when spin–orbit interactions (SOIs) were absent. Although these DNLs mostly disappeared in the presence of SOIs, band crossings at high-symmetry points in the reciprocal space existed as Dirac points. Furthermore, DNLs protected by nonsymmorphic symmetry persisted on the ky = π/b plane. The unique transport properties originating from the topological electronic structure of chemically and thermally stable WO2 could represent an opportunity to investigate the potential electronic applications of the material. |
| format | Article |
| id | doaj-art-4551bfb0521848e9a68f62feee060b15 |
| institution | Kabale University |
| issn | 2166-532X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj-art-4551bfb0521848e9a68f62feee060b152025-02-03T16:42:31ZengAIP Publishing LLCAPL Materials2166-532X2025-01-01131011119011119-810.1063/5.0233482Topological electronic structure and transport properties of the distorted rutile-type WO2Yuto Muramatsu0Daigorou Hirai1Mitsuaki Kawamura2Susumu Minami3Yoshitaka Ikeda4Takahiro Shimada5Keita Kojima6Naoyuki Katayama7Koshi Takenaka8Department of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanInformation Technology Center, University of Tokyo, Bunkyo-ku, Tokyo 113-8658, JapanDepartment of Mechanical Engineering and Science, Kyoto University, Nishikyo-ku, Kyoto 615-8540, JapanDepartment of Mechanical Engineering and Science, Kyoto University, Nishikyo-ku, Kyoto 615-8540, JapanDepartment of Mechanical Engineering and Science, Kyoto University, Nishikyo-ku, Kyoto 615-8540, JapanInstitute for Solid State Physics, the University of Tokyo, Kashiwa 277-8581, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanWe elucidate the transport properties and electronic structures of distorted rutile-type WO2. Electrical resistivity and Hall effect measurements of high-quality single crystals revealed the transport property characteristics of topological materials; these characteristics included an extremely large magnetoresistance of 13 200% (2 K and 9 T) and a very high carrier mobility of 25 700 cm2 V−1 s−1 (5 K). First-principles calculations revealed Dirac nodal lines (DNLs) near the Fermi energy in the electronic structure when spin–orbit interactions (SOIs) were absent. Although these DNLs mostly disappeared in the presence of SOIs, band crossings at high-symmetry points in the reciprocal space existed as Dirac points. Furthermore, DNLs protected by nonsymmorphic symmetry persisted on the ky = π/b plane. The unique transport properties originating from the topological electronic structure of chemically and thermally stable WO2 could represent an opportunity to investigate the potential electronic applications of the material.http://dx.doi.org/10.1063/5.0233482 |
| spellingShingle | Yuto Muramatsu Daigorou Hirai Mitsuaki Kawamura Susumu Minami Yoshitaka Ikeda Takahiro Shimada Keita Kojima Naoyuki Katayama Koshi Takenaka Topological electronic structure and transport properties of the distorted rutile-type WO2 APL Materials |
| title | Topological electronic structure and transport properties of the distorted rutile-type WO2 |
| title_full | Topological electronic structure and transport properties of the distorted rutile-type WO2 |
| title_fullStr | Topological electronic structure and transport properties of the distorted rutile-type WO2 |
| title_full_unstemmed | Topological electronic structure and transport properties of the distorted rutile-type WO2 |
| title_short | Topological electronic structure and transport properties of the distorted rutile-type WO2 |
| title_sort | topological electronic structure and transport properties of the distorted rutile type wo2 |
| url | http://dx.doi.org/10.1063/5.0233482 |
| work_keys_str_mv | AT yutomuramatsu topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT daigorouhirai topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT mitsuakikawamura topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT susumuminami topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT yoshitakaikeda topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT takahiroshimada topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT keitakojima topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT naoyukikatayama topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 AT koshitakenaka topologicalelectronicstructureandtransportpropertiesofthedistortedrutiletypewo2 |