NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures

A. O. Antonenko, E. V. Charnaya, D. Yu Nefedov, D. Yu Podorozhkin, A. V. Uskov, A. S. Bugaev, M. K. Lee, L. J. Chang, S. V. Naumov, Yu A. Perevozchikova, V. V. Chistyakov, E. B. Marchenkova, H. W. Weber, J. C.A. Huang, V. V. Marchenkov

Research output: Contribution to journalArticle

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Abstract

A powder sample and single-crystal plates of the topological insulator Bi 2 Te 3 have been investigated using the 125 Te NMR method at room temperature and at low temperatures in the range from 12.5 to 16.5 K. The NMR spectra of the single-crystal plates have been studied in the orientation where the crystallographic axis c is directed parallel or perpendicular to the magnetic field. The spectra have been obtained by means of recording spin-echo signals and plotting their envelopes. It has been shown that the NMR spectra for the bismuth telluride powder and plates with the orientation c ⊥ B consist of two lines, which are presumably attributed to tellurium nuclei in two crystallographic positions in the bulk of the sample. The position and shape of the lines are determined by the chemical shift and the Knight shift. For the orientation of the plates c || B, the spectrum contains an additional component in the high-frequency region, which cannot appear due to the angular dependence of the line shifts caused by tellurium nuclei in the bulk of the topological insulator. At a low temperature, the additional line dominates in the spectrum.

Original languageEnglish
Pages (from-to)855-859
Number of pages5
JournalPhysics of the Solid State
Volume59
Issue number5
DOIs
Publication statusPublished - 2017 May 1

Fingerprint

Tellurium
Nuclear magnetic resonance
insulators
Single crystals
Powders
nuclear magnetic resonance
single crystals
tellurium
Chemical shift
Bismuth
Crystal orientation
Temperature
bismuth tellurides
nuclei
Magnetic fields
plotting
chemical equilibrium
echoes
envelopes
recording

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Antonenko, A. O., Charnaya, E. V., Nefedov, D. Y., Podorozhkin, D. Y., Uskov, A. V., Bugaev, A. S., ... Marchenkov, V. V. (2017). NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures Physics of the Solid State, 59(5), 855-859. https://doi.org/10.1134/S1063783417050031
Antonenko, A. O. ; Charnaya, E. V. ; Nefedov, D. Yu ; Podorozhkin, D. Yu ; Uskov, A. V. ; Bugaev, A. S. ; Lee, M. K. ; Chang, L. J. ; Naumov, S. V. ; Perevozchikova, Yu A. ; Chistyakov, V. V. ; Marchenkova, E. B. ; Weber, H. W. ; Huang, J. C.A. ; Marchenkov, V. V. / NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures In: Physics of the Solid State. 2017 ; Vol. 59, No. 5. pp. 855-859.
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abstract = "A powder sample and single-crystal plates of the topological insulator Bi 2 Te 3 have been investigated using the 125 Te NMR method at room temperature and at low temperatures in the range from 12.5 to 16.5 K. The NMR spectra of the single-crystal plates have been studied in the orientation where the crystallographic axis c is directed parallel or perpendicular to the magnetic field. The spectra have been obtained by means of recording spin-echo signals and plotting their envelopes. It has been shown that the NMR spectra for the bismuth telluride powder and plates with the orientation c ⊥ B consist of two lines, which are presumably attributed to tellurium nuclei in two crystallographic positions in the bulk of the sample. The position and shape of the lines are determined by the chemical shift and the Knight shift. For the orientation of the plates c || B, the spectrum contains an additional component in the high-frequency region, which cannot appear due to the angular dependence of the line shifts caused by tellurium nuclei in the bulk of the topological insulator. At a low temperature, the additional line dominates in the spectrum.",
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Antonenko, AO, Charnaya, EV, Nefedov, DY, Podorozhkin, DY, Uskov, AV, Bugaev, AS, Lee, MK, Chang, LJ, Naumov, SV, Perevozchikova, YA, Chistyakov, VV, Marchenkova, EB, Weber, HW, Huang, JCA & Marchenkov, VV 2017, ' NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures ', Physics of the Solid State, vol. 59, no. 5, pp. 855-859. https://doi.org/10.1134/S1063783417050031

NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures . / Antonenko, A. O.; Charnaya, E. V.; Nefedov, D. Yu; Podorozhkin, D. Yu; Uskov, A. V.; Bugaev, A. S.; Lee, M. K.; Chang, L. J.; Naumov, S. V.; Perevozchikova, Yu A.; Chistyakov, V. V.; Marchenkova, E. B.; Weber, H. W.; Huang, J. C.A.; Marchenkov, V. V.

In: Physics of the Solid State, Vol. 59, No. 5, 01.05.2017, p. 855-859.

Research output: Contribution to journalArticle

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T1 - NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures

AU - Antonenko, A. O.

AU - Charnaya, E. V.

AU - Nefedov, D. Yu

AU - Podorozhkin, D. Yu

AU - Uskov, A. V.

AU - Bugaev, A. S.

AU - Lee, M. K.

AU - Chang, L. J.

AU - Naumov, S. V.

AU - Perevozchikova, Yu A.

AU - Chistyakov, V. V.

AU - Marchenkova, E. B.

AU - Weber, H. W.

AU - Huang, J. C.A.

AU - Marchenkov, V. V.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - A powder sample and single-crystal plates of the topological insulator Bi 2 Te 3 have been investigated using the 125 Te NMR method at room temperature and at low temperatures in the range from 12.5 to 16.5 K. The NMR spectra of the single-crystal plates have been studied in the orientation where the crystallographic axis c is directed parallel or perpendicular to the magnetic field. The spectra have been obtained by means of recording spin-echo signals and plotting their envelopes. It has been shown that the NMR spectra for the bismuth telluride powder and plates with the orientation c ⊥ B consist of two lines, which are presumably attributed to tellurium nuclei in two crystallographic positions in the bulk of the sample. The position and shape of the lines are determined by the chemical shift and the Knight shift. For the orientation of the plates c || B, the spectrum contains an additional component in the high-frequency region, which cannot appear due to the angular dependence of the line shifts caused by tellurium nuclei in the bulk of the topological insulator. At a low temperature, the additional line dominates in the spectrum.

AB - A powder sample and single-crystal plates of the topological insulator Bi 2 Te 3 have been investigated using the 125 Te NMR method at room temperature and at low temperatures in the range from 12.5 to 16.5 K. The NMR spectra of the single-crystal plates have been studied in the orientation where the crystallographic axis c is directed parallel or perpendicular to the magnetic field. The spectra have been obtained by means of recording spin-echo signals and plotting their envelopes. It has been shown that the NMR spectra for the bismuth telluride powder and plates with the orientation c ⊥ B consist of two lines, which are presumably attributed to tellurium nuclei in two crystallographic positions in the bulk of the sample. The position and shape of the lines are determined by the chemical shift and the Knight shift. For the orientation of the plates c || B, the spectrum contains an additional component in the high-frequency region, which cannot appear due to the angular dependence of the line shifts caused by tellurium nuclei in the bulk of the topological insulator. At a low temperature, the additional line dominates in the spectrum.

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Antonenko AO, Charnaya EV, Nefedov DY, Podorozhkin DY, Uskov AV, Bugaev AS et al. NMR studies of single crystals of the topological insulator Bi 2 Te 3 at low temperatures Physics of the Solid State. 2017 May 1;59(5):855-859. https://doi.org/10.1134/S1063783417050031