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@article{f92fbdc10c724ea899efa60d3ce9a0e2,
title = "Probing the interaction between topological and Rashba-like surface states in MnBi2Te4 through Sn doping",
abstract = "The presence of Rashba-like surface states (RSS) in the electronic structure of topological insulators (TIs) has been a longstanding topic of interest due to their significant impact on electronic and spin structures. In this study, we investigate the interaction between topological and Rashba-like surface states (TSS and RSS) in Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ systems using density functional theory (DFT) calculations and high-resolution ARPES. Our findings reveal that increasing Sn concentration shifts RSS downward in energy, enhancing their influence on the electronic structure near the Fermi level. ARPES validates these predictions, capturing the evolution of RSS and their hybridization with TSS. Orbital analysis shows RSS are localized within the first three Te-Bi-Te trilayers, dominated by Bi $p$-orbitals, with evidence of the orbital Rashba effect enhancing spin-momentum locking. At higher Sn concentrations, RSS penetrate deeper into the crystal, driven by Sn $p$-orbital contributions. These results position Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ as a tunable platform for tailoring electronic properties in spintronic and quantum technologies.",
author = "Тарасов, {Артем Вячеславович} and Естюнин, {Дмитрий Алексеевич} and Рыбкин, {Артем Геннадиевич} and Александр Фролов and Антон Сергеев and Ерыженков, {Александр Владимирович} and Анферова, {Владислава Владимировна} and Макарова, {Татьяна Павловна} and Глазкова, {Дарья Алексеевна} and Кох, {Константин Александрович} and Голяшов, {Владимир Андреевич} and Терещенко, {Олег Евгеньевич} and S. Ideta and Y. Miyai and Y. Kumar and Kenya Shimada and Шикин, {Александр Михайлович}",
year = "2025",
month = apr,
day = "10",
doi = "10.1103/physrevb.111.165115",
language = "English",
volume = "111",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Probing the interaction between topological and Rashba-like surface states in MnBi2Te4 through Sn doping

AU - Тарасов, Артем Вячеславович

AU - Естюнин, Дмитрий Алексеевич

AU - Рыбкин, Артем Геннадиевич

AU - Фролов, Александр

AU - Сергеев, Антон

AU - Ерыженков, Александр Владимирович

AU - Анферова, Владислава Владимировна

AU - Макарова, Татьяна Павловна

AU - Глазкова, Дарья Алексеевна

AU - Кох, Константин Александрович

AU - Голяшов, Владимир Андреевич

AU - Терещенко, Олег Евгеньевич

AU - Ideta, S.

AU - Miyai, Y.

AU - Kumar, Y.

AU - Shimada, Kenya

AU - Шикин, Александр Михайлович

PY - 2025/4/10

Y1 - 2025/4/10

N2 - The presence of Rashba-like surface states (RSS) in the electronic structure of topological insulators (TIs) has been a longstanding topic of interest due to their significant impact on electronic and spin structures. In this study, we investigate the interaction between topological and Rashba-like surface states (TSS and RSS) in Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ systems using density functional theory (DFT) calculations and high-resolution ARPES. Our findings reveal that increasing Sn concentration shifts RSS downward in energy, enhancing their influence on the electronic structure near the Fermi level. ARPES validates these predictions, capturing the evolution of RSS and their hybridization with TSS. Orbital analysis shows RSS are localized within the first three Te-Bi-Te trilayers, dominated by Bi $p$-orbitals, with evidence of the orbital Rashba effect enhancing spin-momentum locking. At higher Sn concentrations, RSS penetrate deeper into the crystal, driven by Sn $p$-orbital contributions. These results position Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ as a tunable platform for tailoring electronic properties in spintronic and quantum technologies.

AB - The presence of Rashba-like surface states (RSS) in the electronic structure of topological insulators (TIs) has been a longstanding topic of interest due to their significant impact on electronic and spin structures. In this study, we investigate the interaction between topological and Rashba-like surface states (TSS and RSS) in Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ systems using density functional theory (DFT) calculations and high-resolution ARPES. Our findings reveal that increasing Sn concentration shifts RSS downward in energy, enhancing their influence on the electronic structure near the Fermi level. ARPES validates these predictions, capturing the evolution of RSS and their hybridization with TSS. Orbital analysis shows RSS are localized within the first three Te-Bi-Te trilayers, dominated by Bi $p$-orbitals, with evidence of the orbital Rashba effect enhancing spin-momentum locking. At higher Sn concentrations, RSS penetrate deeper into the crystal, driven by Sn $p$-orbital contributions. These results position Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ as a tunable platform for tailoring electronic properties in spintronic and quantum technologies.

UR - http://arxiv.org/abs/2412.18666

UR - https://www.mendeley.com/catalogue/50ea9b36-fb91-322b-8fda-acc67ab28cac/

U2 - 10.1103/physrevb.111.165115

DO - 10.1103/physrevb.111.165115

M3 - Article

VL - 111

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

M1 - 165115

ER -

ID: 134825293