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Scientific Reports, volume 10, issue 1, publication number 13226

Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi 2Te 4

SHIKIN A. M. ¹

Estyunin D A ¹

Klimovskikh I I ¹

Filnov S O ¹

Schwier E. F. ²

Kumar S. ²

MIYAMOTO K. ²

Okuda T. ²

Kimura A. ³

Kuroda K. ⁴

YAJI K. ⁴

Shin S ⁴

Takeda Y. ⁵

Saitoh Y. ⁵

Aliev Z S ^{6, 7}

Mamedov N. T. ⁷

Amiraslanov I R ^{7, 8}

Babanly M. B. ^{8, 9}

Otrokov M M ^{10, 11}

Eremeev S V ^{1, 12, 13}

CHULKOV E. V. ^{1, 12, 14, 15}

Hide authors affiliations Show authors affiliations: 15 affiliations

Saint Petersburg State University, Saint Petersburg, Russia |

Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan |

Department of Physical Sciences, Graduate School of Science, Hiroshima University, Hiroshima, Japan |

⁴

ISSP, University of Tokyo, Kashiwa, Japan |

⁵

Materials Sciences Research Center, Japan Atomic Energy Agency, Sayo, Japan |

⁶

Azerbaijan State Oil and Industry University, Baku, Azerbaijan |

⁷

Institute of Physics, ANAS, Baku, Azerbaijan |

⁸

Baku state University, Baku, Azerbaijan |

⁹

Institute of Catalysis and Inorganic Chemistry, ANAS, Baku, Azerbaijan |

¹⁰

Ikerbasque, Basque foundation for Science, Bilbao, Spain |

¹¹

Centro de Física de Materiales (CFM-MPC), Centro Mixto CSIC-UPV/EHU, Donostia-San Sebastián, Spain |

¹²

Tomsk State University, Tomsk, Russia |

¹³

Institute of Strength Physics and Materials Science, Tomsk, Russia |

¹⁴

Donostia International Physics Center (DIPC), Donostia-San Sebastián, Spain |

¹⁵

Departamento de Física de Materiales, Facultad de Ciencias Químicas, UPV/EHU, San Sebastián, Spain |

Publication type: Journal Article

Publication date: 2020-08-06

Springer Nature

Journal: Scientific Reports

Quartile SCImago

Quartile WOS

Impact factor: 4.6

ISSN: 20452322

DOI: 10.1038/s41598-020-70089-9

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PubMed ID: 32764583

Multidisciplinary

Abstract

Modification of the gap at the Dirac point (DP) in axion antiferromagnetic topological insulator $${\hbox {MnBi}}_2 {\hbox {Te}}_4$$ MnBi 2 Te 4 and its electronic and spin structure have been studied by angle- and spin-resolved photoemission spectroscopy (ARPES) under laser excitation at various temperatures (9–35 K), light polarizations and photon energies. We have distinguished both large (60–70 meV) and reduced ($$<20~ \hbox {meV}$$ < 20 meV ) gaps at the DP in the ARPES dispersions, which remain open above the Neél temperature ($$T_{\mathrm{N}} = 24.5~ \hbox {K}$$ T N = 24.5 K ). We propose that the gap above $$T_{\mathrm{N}}$$ T N remains open due to a short-range magnetic field generated by chiral spin fluctuations. Spin-resolved ARPES, XMCD and circular dichroism ARPES measurements show a surface ferromagnetic ordering for the “large gap” sample and apparently significantly reduced effective magnetic moment for the “reduced gap” sample. These observations can be explained by a shift of the Dirac cone (DC) state localization towards the second Mn layer due to structural disturbance and surface relaxation effects, where DC state is influenced by compensated opposite magnetic moments. As we have shown by means of ab-initio calculations surface structural modification can result in a significant modulation of the DP gap.

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Citations by journals

	2 4 6 8 10 12 14 16 18
Physical Review B	Physical Review B, 17, 28.33% Physical Review B 17 publications, 28.33%
JETP Letters	JETP Letters, 6, 10% JETP Letters 6 publications, 10%
Journal of Experimental and Theoretical Physics	Journal of Experimental and Theoretical Physics, 3, 5% Journal of Experimental and Theoretical Physics 3 publications, 5%
Scientific Reports	Scientific Reports, 3, 5% Scientific Reports 3 publications, 5%
Nano Letters	Nano Letters, 3, 5% Nano Letters 3 publications, 5%
Journal of Physical Chemistry Letters	Journal of Physical Chemistry Letters, 2, 3.33% Journal of Physical Chemistry Letters 2 publications, 3.33%
ACS Nano	ACS Nano, 2, 3.33% ACS Nano 2 publications, 3.33%
Applied Physics Letters	Applied Physics Letters, 2, 3.33% Applied Physics Letters 2 publications, 3.33%
Nature Communications	Nature Communications, 2, 3.33% Nature Communications 2 publications, 3.33%
Physical Review Research	Physical Review Research, 2, 3.33% Physical Review Research 2 publications, 3.33%
npj Quantum Materials	npj Quantum Materials, 1, 1.67% npj Quantum Materials 1 publication, 1.67%
Physica B: Condensed Matter	Physica B: Condensed Matter, 1, 1.67% Physica B: Condensed Matter 1 publication, 1.67%
Journal of Applied Physics	Journal of Applied Physics, 1, 1.67% Journal of Applied Physics 1 publication, 1.67%
Physical Review X	Physical Review X, 1, 1.67% Physical Review X 1 publication, 1.67%
Symmetry	Symmetry, 1, 1.67% Symmetry 1 publication, 1.67%
Frontiers of Physics	Frontiers of Physics, 1, 1.67% Frontiers of Physics 1 publication, 1.67%
NPG Asia Materials	NPG Asia Materials, 1, 1.67% NPG Asia Materials 1 publication, 1.67%
Nature Physics	Nature Physics, 1, 1.67% Nature Physics 1 publication, 1.67%
Physical Review Letters	Physical Review Letters, 1, 1.67% Physical Review Letters 1 publication, 1.67%
Calphad: Computer Coupling of Phase Diagrams and Thermochemistry	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry, 1, 1.67% Calphad: Computer Coupling of Phase Diagrams and Thermochemistry 1 publication, 1.67%
Advanced Materials	Advanced Materials, 1, 1.67% Advanced Materials 1 publication, 1.67%
ACS Nanoscience Au	ACS Nanoscience Au, 1, 1.67% ACS Nanoscience Au 1 publication, 1.67%
Materials Today Electronics	Materials Today Electronics, 1, 1.67% Materials Today Electronics 1 publication, 1.67%
Nanomaterials	Nanomaterials, 1, 1.67% Nanomaterials 1 publication, 1.67%
Acta Physica Sinica	Acta Physica Sinica, 1, 1.67% Acta Physica Sinica 1 publication, 1.67%
Physical Review Materials	Physical Review Materials, 1, 1.67% Physical Review Materials 1 publication, 1.67%
Science China: Physics, Mechanics and Astronomy	Science China: Physics, Mechanics and Astronomy, 1, 1.67% Science China: Physics, Mechanics and Astronomy 1 publication, 1.67%
	2 4 6 8 10 12 14 16 18

Citations by publishers

	5 10 15 20 25
American Physical Society (APS)	American Physical Society (APS), 22, 36.67% American Physical Society (APS) 22 publications, 36.67%
Springer Nature	Springer Nature, 9, 15% Springer Nature 9 publications, 15%
Pleiades Publishing	Pleiades Publishing, 9, 15% Pleiades Publishing 9 publications, 15%
American Chemical Society (ACS)	American Chemical Society (ACS), 8, 13.33% American Chemical Society (ACS) 8 publications, 13.33%
Elsevier	Elsevier, 3, 5% Elsevier 3 publications, 5%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 3, 5% American Institute of Physics (AIP) 3 publications, 5%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 2, 3.33% Multidisciplinary Digital Publishing Institute (MDPI) 2 publications, 3.33%
Wiley	Wiley, 1, 1.67% Wiley 1 publication, 1.67%
Chinese Physical Society	Chinese Physical Society, 1, 1.67% Chinese Physical Society 1 publication, 1.67%
Science in China Press	Science in China Press, 1, 1.67% Science in China Press 1 publication, 1.67%
	5 10 15 20 25

We do not take into account publications that without a DOI.
Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
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SHIKIN A. M. et al. Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi 2Te 4 // Scientific Reports. 2020. Vol. 10. No. 1. 13226

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SHIKIN A. M., Estyunin D. A., Klimovskikh I. I., Filnov S. O., Schwier E. F., Kumar S., MIYAMOTO K., Okuda T., Kimura A., Kuroda K., YAJI K., Shin S., Takeda Y., Saitoh Y., Aliev Z. S., Mamedov N. T., Amiraslanov I. R., Babanly M. B., Otrokov M. M., Eremeev S. V., CHULKOV E. V. Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi 2Te 4 // Scientific Reports. 2020. Vol. 10. No. 1. 13226

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TY - JOUR

DO - 10.1038/s41598-020-70089-9

UR - https://doi.org/10.1038%2Fs41598-020-70089-9

TI - Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi 2Te 4

T2 - Scientific Reports

AU - Kumar, S.

AU - MIYAMOTO, K.

AU - Okuda, T.

AU - Kimura, A.

AU - Kuroda, K.

AU - YAJI, K.

AU - Shin, S

AU - Takeda, Y.

AU - Saitoh, Y.

AU - Mamedov, N. T.

AU - Amiraslanov, I R

AU - Eremeev, S V

AU - SHIKIN, A. M.

AU - Estyunin, D A

AU - Klimovskikh, I I

AU - Schwier, E. F.

AU - Otrokov, M M

AU - Filnov, S O

AU - Aliev, Z S

AU - Babanly, M. B.

AU - CHULKOV, E. V.

PY - 2020

DA - 2020/08/06 00:00:00

PB - Springer Nature

IS - 1

VL - 10

PMID - 32764583

SN - 2045-2322

ER -

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@article{2020_SHIKIN,

author = {S. Kumar and K. MIYAMOTO and T. Okuda and A. Kimura and K. Kuroda and K. YAJI and S Shin and Y. Takeda and Y. Saitoh and N. T. Mamedov and I R Amiraslanov and S V Eremeev and A. M. SHIKIN and D A Estyunin and I I Klimovskikh and E. F. Schwier and M M Otrokov and S O Filnov and Z S Aliev and M. B. Babanly and E. V. CHULKOV},

title = {Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi 2Te 4},

journal = {Scientific Reports},

year = {2020},

volume = {10},

publisher = {Springer Nature},

month = {aug},

url = {https://doi.org/10.1038%2Fs41598-020-70089-9},

number = {1},

doi = {10.1038/s41598-020-70089-9}

}

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Publisher

Springer Nature

Journal

Scientific Reports

Quartile SCImago

Quartile WOS

Impact factor

4.6

ISSN

20452322 (Print)

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