Open Access
Scientific Reports, volume 11, issue 1, publication number 23332
Non-monotonic variation of the Kramers point band gap with increasing magnetic doping in BiTeI
SHIKIN A. M.
1
,
Rybkina A.A.
1
,
Estyunin D A
1
,
Klimovskikh I I
1
,
Rybkin A G
1
,
Filnov S O
1
,
Koroleva A V
1
,
Shevchenko E V
1
,
Likholetova M. V.
1
,
Voroshnin V Yu
1, 2
,
Petukhov A E
1
,
Kokh K. A.
1, 3, 4
,
Tereshchenko O E
1, 5, 6
,
PETACCIA L.
7
,
Di Santo G
7
,
Kumar S.
8
,
Kimura A.
9
,
SKIRDKOV P. N.
10, 11
,
ZVEZDIN K. A.
10, 11
,
ZVEZDIN A. K.
10, 12
2
Helmholtz-Zentrum Berlin Für Materialien Und Energie, BESSY II, Berlin, Germany
|
7
ELETTRA Sincrotrone Trieste, Trieste, Italy
|
8
Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-hiroshima, Japan
|
9
Graduate School of Science, Hiroshima University, Higashi-hiroshima, Japan
|
Publication type: Journal Article
Publication date: 2021-12-02
PubMed ID:
34857800
Multidisciplinary
Abstract
Polar Rashba-type semiconductor BiTeI doped with magnetic elements constitutes one of the most promising platforms for the future development of spintronics and quantum computing thanks to the combination of strong spin-orbit coupling and internal ferromagnetic ordering. The latter originates from magnetic impurities and is able to open an energy gap at the Kramers point (KP gap) of the Rashba bands. In the current work using angle-resolved photoemission spectroscopy (ARPES) we show that the KP gap depends non-monotonically on the doping level in case of V-doped BiTeI. We observe that the gap increases with V concentration until it reaches 3% and then starts to mitigate. Moreover, we find that the saturation magnetisation of samples under applied magnetic field studied by superconducting quantum interference device (SQUID) magnetometer has a similar behaviour with the doping level. Theoretical analysis shows that the non-monotonic behavior can be explained by the increase of antiferromagnetic coupled atoms of magnetic impurity above a certain doping level. This leads to the reduction of the total magnetic moment in the domains and thus to the mitigation of the KP gap as observed in the experiment. These findings provide further insight in the creation of internal magnetic ordering and consequent KP gap opening in magnetically-doped Rashba-type semiconductors.
Citations by journals
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1
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JETP Letters
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JETP Letters
1 publication, 50%
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Applied Physics Letters
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Applied Physics Letters
1 publication, 50%
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1
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Citations by publishers
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1
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Pleiades Publishing
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Pleiades Publishing
1 publication, 50%
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American Institute of Physics (AIP)
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American Institute of Physics (AIP)
1 publication, 50%
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1
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SHIKIN A. M. et al. Non-monotonic variation of the Kramers point band gap with increasing magnetic doping in BiTeI // Scientific Reports. 2021. Vol. 11. No. 1. 23332
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SHIKIN A. M., Rybkina A., Estyunin D. A., Klimovskikh I. I., Rybkin A. G., Filnov S. O., Koroleva A. V., Shevchenko E. V., Likholetova M. V., Voroshnin V. Yu., Petukhov A. E., Kokh K. A., Tereshchenko O. E., PETACCIA L., Di Santo G., Kumar S., Kimura A., SKIRDKOV P. N., ZVEZDIN K. A., ZVEZDIN A. K. Non-monotonic variation of the Kramers point band gap with increasing magnetic doping in BiTeI // Scientific Reports. 2021. Vol. 11. No. 1. 23332
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TY - JOUR
DO - 10.1038/s41598-021-02493-8
UR - https://doi.org/10.1038%2Fs41598-021-02493-8
TI - Non-monotonic variation of the Kramers point band gap with increasing magnetic doping in BiTeI
T2 - Scientific Reports
AU - Rybkina, A.A.
AU - Rybkin, A G
AU - Koroleva, A V
AU - Shevchenko, E V
AU - Likholetova, M. V.
AU - Voroshnin, V Yu
AU - Petukhov, A E
AU - Kokh, K. A.
AU - Tereshchenko, O E
AU - PETACCIA, L.
AU - Di Santo, G
AU - Kumar, S.
AU - Kimura, A.
AU - SKIRDKOV, P. N.
AU - ZVEZDIN, K. A.
AU - ZVEZDIN, A. K.
AU - SHIKIN, A. M.
AU - Estyunin, D A
AU - Klimovskikh, I I
AU - Filnov, S O
PY - 2021
DA - 2021/12/02 00:00:00
PB - Springer Nature
IS - 1
VL - 11
PMID - 34857800
SN - 2045-2322
ER -
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@article{2021_SHIKIN,
author = {A.A. Rybkina and A G Rybkin and A V Koroleva and E V Shevchenko and M. V. Likholetova and V Yu Voroshnin and A E Petukhov and K. A. Kokh and O E Tereshchenko and L. PETACCIA and G Di Santo and S. Kumar and A. Kimura and P. N. SKIRDKOV and K. A. ZVEZDIN and A. K. ZVEZDIN and A. M. SHIKIN and D A Estyunin and I I Klimovskikh and S O Filnov},
title = {Non-monotonic variation of the Kramers point band gap with increasing magnetic doping in BiTeI},
journal = {Scientific Reports},
year = {2021},
volume = {11},
publisher = {Springer Nature},
month = {dec},
url = {https://doi.org/10.1038%2Fs41598-021-02493-8},
number = {1},
doi = {10.1038/s41598-021-02493-8}
}