Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic grapheneCitation formats

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Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene. / Garcia-Ruiz, Aitor; Deng, Hai-Yao; Enaldiev, Vladimir; Fal'ko, Vladimir.

In: Physical Review B, 20.07.2021.

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@article{6fc6b0cd5e314bcea48a989a61064e85,
title = "Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene",
abstract = "We use a hybrid k p theory - tight binding (HkpTB) model to describe interlayer coupling simultaneously in both Bernal and twisted graphene structures. For Bernal-aligned interfaces, HkpTB is parametrized using the full Slonczewski-Weiss-McClure (SWMcC) Hamiltonian of graphite1, which is then used to refine the commonly used Bistritzer-MacDonald (BM) model for twisted interfaces2,3, by deriving additional terms that reflect all details of the full SWMcC model of graphite. We find that these terms introduce electron-hole asymmetry in the band structure of twisted bilayers, but in twistronic multilayer graphene, they produce only a subtle change of moir´e miniband spectra, confirming the broad applicability of the BM model for implementing the twisted interface coupling in such systems.",
author = "Aitor Garcia-Ruiz and Hai-Yao Deng and Vladimir Enaldiev and Vladimir Fal'ko",
year = "2021",
month = jul,
day = "20",
language = "English",
journal = "Physical Review B",
issn = "2469-9969",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene

AU - Garcia-Ruiz, Aitor

AU - Deng, Hai-Yao

AU - Enaldiev, Vladimir

AU - Fal'ko, Vladimir

PY - 2021/7/20

Y1 - 2021/7/20

N2 - We use a hybrid k p theory - tight binding (HkpTB) model to describe interlayer coupling simultaneously in both Bernal and twisted graphene structures. For Bernal-aligned interfaces, HkpTB is parametrized using the full Slonczewski-Weiss-McClure (SWMcC) Hamiltonian of graphite1, which is then used to refine the commonly used Bistritzer-MacDonald (BM) model for twisted interfaces2,3, by deriving additional terms that reflect all details of the full SWMcC model of graphite. We find that these terms introduce electron-hole asymmetry in the band structure of twisted bilayers, but in twistronic multilayer graphene, they produce only a subtle change of moir´e miniband spectra, confirming the broad applicability of the BM model for implementing the twisted interface coupling in such systems.

AB - We use a hybrid k p theory - tight binding (HkpTB) model to describe interlayer coupling simultaneously in both Bernal and twisted graphene structures. For Bernal-aligned interfaces, HkpTB is parametrized using the full Slonczewski-Weiss-McClure (SWMcC) Hamiltonian of graphite1, which is then used to refine the commonly used Bistritzer-MacDonald (BM) model for twisted interfaces2,3, by deriving additional terms that reflect all details of the full SWMcC model of graphite. We find that these terms introduce electron-hole asymmetry in the band structure of twisted bilayers, but in twistronic multilayer graphene, they produce only a subtle change of moir´e miniband spectra, confirming the broad applicability of the BM model for implementing the twisted interface coupling in such systems.

M3 - Article

JO - Physical Review B

JF - Physical Review B

SN - 2469-9969

ER -