Carrier‐Density Control of the SrTiO₃ (001) Surface 2D Electron Gas studied by ARPES

Siobhan McKeown Walker; Flavio Yair Bruno; Zhiming Wang; Alberto de la Torre; Sara Riccó; Anna Tamai; Timur K. Kim; Moritz Hoesch; Ming Shi; Mohammad Saeed Bahramy; Phil D. C. King; Felix Baumberger

doi:10.1002/adma.201501556

journal article·2015-07Open access

Carrier‐Density Control of the SrTiO₃ (001) Surface 2D Electron Gas studied by ARPES

Siobhan McKeown Walker, Flavio Yair Bruno, Zhiming Wang, Alberto de la Torre, Sara Riccó, Anna Tamai, Timur K. Kim, Moritz Hoesch, Ming Shi, Mohammad Saeed Bahramy, Phil D. C. King, Felix Baumberger

Advanced Materials· Volume 27· Issue 26

Publisher page Open full text

Source abstract

Abstract

The origin of the 2D electron gas (2DEG)stabilized at the bare surface of SrTiO3 (001) is investigated. Using high-resolution angle-resolved photoemission and core-level spectroscopy, it is shown conclusively that this 2DEG arises from light-induced oxygen vacancies. The dominant mechanism driving vacancy formation is identified, allowing unprecedented control over the 2DEG carrier density.

Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Electronic and Structural Properties of Oxides · Semiconductor materials and devices · Magnetic and transport properties of perovskites and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Quantum Matter Physics University of Geneva 24 Quai Ernest‐Ansermet 1211 Geneva Switzerland

Swiss Light Source Paul Scherrer Institute 5232 Villigen Switzerland

Diamond Light Source Harwell Campus Didcot OX11 0DE UK

Quantum‐Phase Electronics Center Department of Applied Physics University of Tokyo 113‐8656 Tokyo Japan

RIKEN Center for Emergent Matter Science 351‐0198 Wako Japan

SUPA School of Physics and Astronomy University of St Andrews KY16 9SS St Andrews UK

References (36)

Show source-provided references

1. 10.1038/nature0230810.1038/nature02308 ↗

2. 10.1126/science.114600610.1126/science.1146006 ↗

3. 10.1038/nature0757610.1038/nature07576 ↗

4. 10.1103/PhysRevLett.104.12680210.1103/PhysRevLett.104.126802 ↗

5. 10.1038/nature1249410.1038/nature12494 ↗

6. 10.1038/ncomms239410.1038/ncomms2394 ↗

7. 10.1063/1.475898910.1063/1.4758989 ↗

8. 10.1021/nl201821j10.1021/nl201821j ↗

9. 10.1038/srep0075810.1038/srep00758 ↗

10. Liu Z. Q. · Phys. Rev. X · 2013 · 3 · 021010

11. 10.1038/nmat229810.1038/nmat2298 ↗

12. 10.1038/nmat294310.1038/nmat2943 ↗

13. 10.1103/PhysRevLett.113.17760110.1103/PhysRevLett.113.177601 ↗

14. 10.1073/pnas.131830411110.1073/pnas.1318304111 ↗

15. 10.1063/1.490767610.1063/1.4907676 ↗

16. 10.1103/PhysRevLett.106.13680910.1103/PhysRevLett.106.136809 ↗

17. 10.1038/ncomms211610.1038/ncomms2116 ↗

18. 10.1103/PhysRevLett.106.13680310.1103/PhysRevLett.106.136803 ↗

19. 10.1103/PhysRevLett.102.16680410.1103/PhysRevLett.102.166804 ↗

20. 10.1103/PhysRevLett.105.23680210.1103/PhysRevLett.105.236802 ↗

21. 10.1103/PhysRevB.86.20110510.1103/PhysRevB.86.201105 ↗

22. 10.1063/1.486378610.1063/1.4863786 ↗

23. 10.1103/PhysRevLett.110.24760110.1103/PhysRevLett.110.247601 ↗

24. 10.1103/PhysRevB.89.12141210.1103/PhysRevB.89.121412 ↗

25. 10.1038/nature0972010.1038/nature09720 ↗

26. 10.1038/ncomms441410.1038/ncomms4414 ↗

27. 10.1088/1367-2630/17/2/02303410.1088/1367-2630/17/2/023034 ↗

28. 10.1103/PhysRevLett.111.21760110.1103/PhysRevLett.111.217601 ↗

29. 10.1103/PhysRevB.90.08512510.1103/PhysRevB.90.085125 ↗

30. 10.1103/PhysRevLett.102.17680510.1103/PhysRevLett.102.176805 ↗

31. 10.1103/PhysRevB.87.08512810.1103/PhysRevB.87.085128 ↗

32. 10.1002/adma.20130463410.1002/adma.201304634 ↗

33. 10.1103/PhysRevLett.40.96410.1103/PhysRevLett.40.964 ↗

34. 10.1063/1.291639910.1063/1.2916399 ↗

35. 10.1126/science.114478710.1126/science.1144787 ↗

36. 10.1103/PhysRevLett.110.19640310.1103/PhysRevLett.110.196403 ↗