Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal
Bi1-xSbx alloys are of special significance in topological insulator research. Here we focus on the Bi0.96Sb0.04 alloy in which the conduction band edge just touches the valence band edge. Transport measurements show quantum oscillations in the longitudinal (Shubnikov–de Haas effect) and transverse...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2019/5628685 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849306471558283264 |
|---|---|
| author | Gongqin Xu Anne de Visser Yingkai Huang Xingyu Mao |
| author_facet | Gongqin Xu Anne de Visser Yingkai Huang Xingyu Mao |
| author_sort | Gongqin Xu |
| collection | DOAJ |
| description | Bi1-xSbx alloys are of special significance in topological insulator research. Here we focus on the Bi0.96Sb0.04 alloy in which the conduction band edge just touches the valence band edge. Transport measurements show quantum oscillations in the longitudinal (Shubnikov–de Haas effect) and transverse magnetoresistance originating from a spheroidal Fermi surface pocket. Further investigation of the longitudinal magnetoresistance for the magnetic field parallel to the electrical current shows a small nonmonotonic magnetoresistance that is attributed to a competition of weak-antilocalization effects and a topological term related to the chiral anomaly. |
| format | Article |
| id | doaj-art-321237bf4f62485aa143c539752ee611 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-321237bf4f62485aa143c539752ee6112025-08-20T03:55:06ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242019-01-01201910.1155/2019/56286855628685Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single CrystalGongqin Xu0Anne de Visser1Yingkai Huang2Xingyu Mao3Jimei University, Xiamen, ChinaVan der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, NetherlandsVan der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, NetherlandsJimei University, Xiamen, ChinaBi1-xSbx alloys are of special significance in topological insulator research. Here we focus on the Bi0.96Sb0.04 alloy in which the conduction band edge just touches the valence band edge. Transport measurements show quantum oscillations in the longitudinal (Shubnikov–de Haas effect) and transverse magnetoresistance originating from a spheroidal Fermi surface pocket. Further investigation of the longitudinal magnetoresistance for the magnetic field parallel to the electrical current shows a small nonmonotonic magnetoresistance that is attributed to a competition of weak-antilocalization effects and a topological term related to the chiral anomaly.http://dx.doi.org/10.1155/2019/5628685 |
| spellingShingle | Gongqin Xu Anne de Visser Yingkai Huang Xingyu Mao Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal Advances in Condensed Matter Physics |
| title | Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal |
| title_full | Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal |
| title_fullStr | Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal |
| title_full_unstemmed | Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal |
| title_short | Quantum Oscillations and Chiral Anomaly in a Bi0.96Sb0.04 Single Crystal |
| title_sort | quantum oscillations and chiral anomaly in a bi0 96sb0 04 single crystal |
| url | http://dx.doi.org/10.1155/2019/5628685 |
| work_keys_str_mv | AT gongqinxu quantumoscillationsandchiralanomalyinabi096sb004singlecrystal AT annedevisser quantumoscillationsandchiralanomalyinabi096sb004singlecrystal AT yingkaihuang quantumoscillationsandchiralanomalyinabi096sb004singlecrystal AT xingyumao quantumoscillationsandchiralanomalyinabi096sb004singlecrystal |