Dirac electron states formed at the heterointerface between a topological insulator and a conventional semiconductor

Nature Materials

Volumn 13, Issue 3, 2014, Pages 253-257

  Yoshimi, R ^a   Tsukazaki, A ^a,c   Kikutake, K ^a   Checkelsky, J G ^a   Takahashi, K S ^b   Kawasaki, M ^a,b   Tokura, Y ^a,b  

^a UNIVERSITY OF TOKYO   (Japan)

^b RIKEN Center for Emergent Matter Science   (Japan)

^c TOHOKU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRIC INSULATORS; HETEROJUNCTIONS; PHOTOELECTRON SPECTROSCOPY; SCANNING TUNNELING MICROSCOPY; SEMICONDUCTING TELLURIUM; SEMICONDUCTOR DEVICES; SPECTROSCOPY;

ANGLE RESOLVED PHOTOEMISSION SPECTROSCOPY; APPLIED MAGNETIC FIELDS; DIRAC ELECTRONS; FERMI VELOCITIES; HETERO INTERFACES; HETEROJUNCTION DEVICES; TOPOLOGICAL INSULATORS; TUNNELLING CONDUCTANCE;

INTERFACE STATES;

EID: 84894486001     PISSN: 14761122     EISSN: 14764660     Source Type: Journal    
DOI: 10.1038/nmat3885     Document Type: Article

References (27)

1. Kane, C. L. & Mele, E. J. Z2 topological order and the quantum spin Hall e-ect. Phys. Rev. Lett. 95, 146802 (2005).
2. Fu, L., Kane, C. L. & Mele, E. J. Topological insulators in three dimensions. Phys. Rev. Lett. 98, 106803 (2007).
3. Moore, J. E. & Balents, L. Topological invariants of time-reversal-invariant band structures. Phys. Rev. B 75, 121306(R) (2007).
4. Hasan, M. Z. & Kane, C. L. Colloquium: Topological insulators. Rev.Mod. Phys. 82, 3045-3067 (2010).
5. Hsieh, D. et al. A topological Dirac insulator in a quantum spin Hall phase. Nature 452, 970-974 (2008).
6. Chen, Y. L. et al. Experimental realization of a three-dimensional topological insulator, Bi2Te3. Science 325, 178-181 (2009).
7. Hsieh, D. et al. A tunable topological insulator in the spin helical Dirac transport regime. Nature 460, 1101-1105 (2009).
8. Cheng, P. et al. Landau quantization of topological surface states in Bi2Se3. Phys. Rev. Lett. 105, 076801 (2010).
9. Hanaguri, T., Igarashi, K., Kawamura, M., Takagi, H. & Sasagawa, T. Momentum-resolved Landau-level spectroscopy of Dirac surface state in Bi2Se3. Phys. Rev. B 82, 081305(R) (2010).
10. Jiang, Y. et al. Landau quantization and the thickness limit of topological insulator thin films of Sb2Te3. Phys. Rev. Lett. 108, 016401 (2012).
11. Fu, L. & Kane, C. L. Superconducting proximity e-ect and Majorana fermions at the surface of a topological insulator. Phys. Rev. Lett. 100, 096407 (2008).
12. Qi, X. L., Hughes, T. L. & Zhang, S. C. Topological field theory of time-reversal invariant insulators. Phys. Rev. B 78, 195424 (2008).
13. Seradjeh, B., Moore, J. E. & Franz, M. Exciton condensation and charge fractionalization in a topological insulator film. Phys. Rev. Lett. 103, 066402 (2009).
14. Klein, J., Leger, A., Belin, M., Defourneau, D. & Sangster, M. J. L. Inelastic-electron-tunneling spectroscopy of metal-insulator-metal junctions. Phys. Rev. B 7, 2336-2348 (1973).
15. Bockenho-, E., Klitzing, K. V. & Ploog, K. Tunneling from accumulation layers in high magnetic fields. Phys. Rev. B 38, 10120-10123 (1988).
16. Yang, C. H., Yang, M. J. & Kao, Y. C. Magnetotunneling spectroscopy in a double-barrier heterostructure: Observation of incoherent resonant-tunneling processes. Phys. Rev. B 40, 6272-6276 (1989).
17. Zhang, J. et al. Band structure engineering in .Bi1xSbx/2Te3 ternary topological insulators. Nature Commun. 2, 574 (2011).
18. Qu, D. X., Hor, Y. S., Xiong, J., Cava, R. J. & Ong, N. P. Quantum oscillations and Hall anomaly of surface states in the topological insulator Bi2Te3. Science 329, 821 (2010).
19. Analytis, J. G. et al. Two-dimensional surface state in the quantum limit of a topological insulator. Nature Phys. 6, 960-964 (2010).
20. Taskin, A. A., Ren, Z., Sasaki, S., Segawa, K. & Ando, Y. Observation of Dirac holes and electrons in a topological insulator. Phys. Rev. Lett. 107, 016801 (2011).
21. Sacepe, B. et al. Gate-tuned normal and superconducting transport at the surface of a topological insulator. Nature Commun. 2, 575 (2011).
22. Levinstein, M., Rumyantsev, S. & Shur, M. Handbook Series on Semiconductor Parameters (World Scientific, 1996).
23. Hao, G. et al. Synthesis and characterization of few-layer Sb2Te3 nanoplates with electrostatic properties. RSC Advances 2, 10694-10699 (2012).
24. Esaki, L. New phenomenon in narrow germanium p-n junctions. Phys. Rev. 109, 603-604 (1958).
25. Winkler, R. Spin-Orbit Coupling E-ects in Two-Dimensional Electron and Hole Systems (Springer, 2003).
26. Xiong, J. et al. High-field Shubnikov-de Haas oscillations in the topological insulator Bi2Te2Se. Phys. Rev. B 86, 045314 (2012).
27. Chen, J. et al. Gate-voltage control of chemical potential and weak antilocalization in Bi2Se3. Phys. Rev. Lett. 105, 176602 (2010).