Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructuresCitation formats

  • External authors:
  • Abigail J Graham
  • Viktor Zolyomi
  • Samuel Magorrian
  • Alexei Barinov
  • Viktor Kandyba
  • Alessio Giampietri
  • Andrea Locatelli
  • Francesca Genuzio
  • Natalie C Teutsch
  • Temok Salazar
  • Nicholas D M Hine
  • Neil R Wilson

Standard

Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures. / Graham, Abigail J ; Zultak, Johanna; Hamer, Matthew; Zolyomi, Viktor; Magorrian, Samuel; Barinov, Alexei; Kandyba, Viktor; Giampietri, Alessio; Locatelli, Andrea; Genuzio, Francesca; Teutsch, Natalie C; Salazar, Temok; Hine, Nicholas D M ; Fal'ko, Vladimir; Gorbachev, Roman; Wilson, Neil R .

In: 2 D Materials, 08.10.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

Graham, AJ, Zultak, J, Hamer, M, Zolyomi, V, Magorrian, S, Barinov, A, Kandyba, V, Giampietri, A, Locatelli, A, Genuzio, F, Teutsch, NC, Salazar, T, Hine, NDM, Fal'ko, V, Gorbachev, R & Wilson, NR 2020, 'Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures', 2 D Materials.

APA

Graham, A. J., Zultak, J., Hamer, M., Zolyomi, V., Magorrian, S., Barinov, A., Kandyba, V., Giampietri, A., Locatelli, A., Genuzio, F., Teutsch, N. C., Salazar, T., Hine, N. D. M., Fal'ko, V., Gorbachev, R., & Wilson, N. R. (Accepted/In press). Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures. 2 D Materials.

Vancouver

Graham AJ, Zultak J, Hamer M, Zolyomi V, Magorrian S, Barinov A et al. Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures. 2 D Materials. 2020 Oct 8.

Author

Graham, Abigail J ; Zultak, Johanna ; Hamer, Matthew ; Zolyomi, Viktor ; Magorrian, Samuel ; Barinov, Alexei ; Kandyba, Viktor ; Giampietri, Alessio ; Locatelli, Andrea ; Genuzio, Francesca ; Teutsch, Natalie C ; Salazar, Temok ; Hine, Nicholas D M ; Fal'ko, Vladimir ; Gorbachev, Roman ; Wilson, Neil R . / Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures. In: 2 D Materials. 2020.

Bibtex

@article{add1c80bbc244bada31f3624ba4b4dbf,
title = "Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures",
abstract = "In two-dimensional heterostructures, crystalline atomic layers with differing lattice parameters can stack directly one on another. The resultant close proximity of atomic lattices with differing periodicity can lead to new phenomena. For umklapp processes, this opens the possibility for interlayer umklapp scattering, where interactions are mediated by the transfer of momenta to or from the lattice in the neighbouring layer. Using angle-resolved photoemission spectroscopy to study a graphene on InSe heterostructure, we present evidence that interlayer umklapp processes can cause hybridization between bands from neighbouring layers in regions of the Brillouin zone where bands from only one layer are expected, despite no evidence for Moir{\'e}-induced replica bands. This phenomenon manifests itself as “ghost” anti-crossings in the InSe electronic dispersion. Applied to a range of suitable 2DM pairs, this phenomenon of interlayer umklapp hybridization can be used to create strong mixing of their electronic states, giving a new tool for twist-controlled band structure engineering.",
author = "Graham, {Abigail J} and Johanna Zultak and Matthew Hamer and Viktor Zolyomi and Samuel Magorrian and Alexei Barinov and Viktor Kandyba and Alessio Giampietri and Andrea Locatelli and Francesca Genuzio and Teutsch, {Natalie C} and Temok Salazar and Hine, {Nicholas D M} and Vladimir Fal'ko and Roman Gorbachev and Wilson, {Neil R}",
year = "2020",
month = oct,
day = "8",
language = "English",
journal = "2 D Materials",
issn = "2053-1583",
publisher = "IOP Publishing Ltd",

}

RIS

TY - JOUR

T1 - Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures

AU - Graham, Abigail J

AU - Zultak, Johanna

AU - Hamer, Matthew

AU - Zolyomi, Viktor

AU - Magorrian, Samuel

AU - Barinov, Alexei

AU - Kandyba, Viktor

AU - Giampietri, Alessio

AU - Locatelli, Andrea

AU - Genuzio, Francesca

AU - Teutsch, Natalie C

AU - Salazar, Temok

AU - Hine, Nicholas D M

AU - Fal'ko, Vladimir

AU - Gorbachev, Roman

AU - Wilson, Neil R

PY - 2020/10/8

Y1 - 2020/10/8

N2 - In two-dimensional heterostructures, crystalline atomic layers with differing lattice parameters can stack directly one on another. The resultant close proximity of atomic lattices with differing periodicity can lead to new phenomena. For umklapp processes, this opens the possibility for interlayer umklapp scattering, where interactions are mediated by the transfer of momenta to or from the lattice in the neighbouring layer. Using angle-resolved photoemission spectroscopy to study a graphene on InSe heterostructure, we present evidence that interlayer umklapp processes can cause hybridization between bands from neighbouring layers in regions of the Brillouin zone where bands from only one layer are expected, despite no evidence for Moiré-induced replica bands. This phenomenon manifests itself as “ghost” anti-crossings in the InSe electronic dispersion. Applied to a range of suitable 2DM pairs, this phenomenon of interlayer umklapp hybridization can be used to create strong mixing of their electronic states, giving a new tool for twist-controlled band structure engineering.

AB - In two-dimensional heterostructures, crystalline atomic layers with differing lattice parameters can stack directly one on another. The resultant close proximity of atomic lattices with differing periodicity can lead to new phenomena. For umklapp processes, this opens the possibility for interlayer umklapp scattering, where interactions are mediated by the transfer of momenta to or from the lattice in the neighbouring layer. Using angle-resolved photoemission spectroscopy to study a graphene on InSe heterostructure, we present evidence that interlayer umklapp processes can cause hybridization between bands from neighbouring layers in regions of the Brillouin zone where bands from only one layer are expected, despite no evidence for Moiré-induced replica bands. This phenomenon manifests itself as “ghost” anti-crossings in the InSe electronic dispersion. Applied to a range of suitable 2DM pairs, this phenomenon of interlayer umklapp hybridization can be used to create strong mixing of their electronic states, giving a new tool for twist-controlled band structure engineering.

M3 - Article

JO - 2 D Materials

JF - 2 D Materials

SN - 2053-1583

ER -