Journal article

Ultrahigh magnetic field spectroscopy reveals the band structure of the 3D topological insulator Bi$_2$Se$_3$

Abstract:: We have investigated the band structure at the Γ point of the three-dimensional (3D) topological insulator Bi₂Se₃ using magneto-spectroscopy over a wide range of energies (0.55-2.2eV) and in ultrahigh magnetic fields up to 150T. At such high energies (E>0.6eV) the parabolic approximation for the massive Dirac fermions breaks down and the Landau level dispersion becomes nonlinear. At even higher energies around 0.99 and 1.6 eV, new additional strong absorptions are observed with a temperature and magnetic-field dependence which suggest that they originate from higher band gaps. Spin orbit splittings for the further lying conduction and valence bands are found to be 0.196 and 0.264 eV.

Publication status:: Submitted

Peer review status:: Not peer reviewed

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APA Style

Miyata, A., Yang, Z., Surrente, A., Drachenko, O., Maude, D., Portugall, O., Duffy, L., Hesjedal, T., Plochocka, P., & Nicholas, R. (2017). Ultrahigh magnetic field spectroscopy reveals the band structure of the 3D topological insulator Bi$_2$Se$_3$ . Arxiv, arXiv:1706.00781 [cond-mat.mes-hall].

MLA Style

Miyata, A., et al. “Ultrahigh Magnetic Field Spectroscopy Reveals the Band Structure of The 3D Topological Insulator Bi$_2$Se$_3$ .” Arxiv, 2017, pp. arXiv:1706.00781 [cond-mat.mes-hall].

Chicago Style

Miyata, A, Z Yang, A Surrente, O Drachenko, D Maude, O Portugall, L Duffy, T Hesjedal, P Plochocka, and R Nicholas. 2017. “Ultrahigh Magnetic Field Spectroscopy Reveals the Band Structure of The 3D Topological Insulator Bi$_2$Se$_3$ .” Arxiv, arXiv:1706.00781 [cond-mat.mes-hall].
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Files:: 1706.00781v1.pdf

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Authors

+ Miyata, A More by this author

Role:: Author

+ Yang, Z More by this author

Role:: Author

+ Surrente, A More by this author

Role:: Author

+ Drachenko, O More by this author

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+ Maude, D More by this author

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+ Programme Investissements d’Avenir More from this funder

Grant:: ANR-11-IDEX-0002-02, reference ANR-10-LABX-0037-NEXT

+ Région Midi-Pyrénées More from this funder

Grant:: MESR 13053031

+ Engineering and Physical Sciences Research Council More from this funder

Grant:: EP/N01085X/1

+ Science & Technology Facilities Council More from this funder

+ John Fell Fund More from this funder

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Journal:: Arxiv More from this journal
Pages:: arXiv:1706.00781 [cond-mat.mes-hall]

Keywords:: mesoscale and nanoscale physics
Pubs id:: pubs:701222
UUID:: uuid:59af2f2c-a33d-465d-84f8-85fd8096e4bd
Local pid:: pubs:701222
Source identifiers:: 701222
Deposit date:: 2017-06-20

Terms of use

Notes:: This is the authors' original manuscript and is also available online from Arxiv at: https://arxiv.org/abs/1706.00781

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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