Research output: Contribution to journal › Article › peer-review
NMR studies of single crystals of the topological insulator Bi2Te3 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 journal › Article › peer-review
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TY - JOUR
T1 - NMR studies of single crystals of the topological insulator Bi2Te3 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 Bi2Te3 have been investigated using the 125Te 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 Bi2Te3 have been investigated using the 125Te 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.
UR - http://www.scopus.com/inward/record.url?scp=85019545364&partnerID=8YFLogxK
U2 - 10.1134/S1063783417050031
DO - 10.1134/S1063783417050031
M3 - Article
AN - SCOPUS:85019545364
VL - 59
SP - 855
EP - 859
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 5
ER -
ID: 36148156