DOI: 10.1126/science.1237240. Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure

Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure

10.1126/science.1237240

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Graphene, Gapped and Butterflied The remarkable transport properties of graphene, such as the high electron mobility, make it a promising material for electronics. However, unlike semiconductors such as silicon, graphene's electronic structure lacks a band gap, and a transistor made out of graphene would not have an “off” state. Hunt et al. (p. 1427 , published online 16 May; see the Perspective by Fuhrer ) modulated the electronic properties of graphene by building a heterostructure consisting of a graphene flake resting on hexagonal boron nitride (hBN), which has the same honeycomb structure as graphene, but consists of alternating boron and nitrogen atoms instead of carbons. The natural mismatch between the graphene and hBN lattices led to a moire pattern with a large wavelength, causing the opening of a band gap, the formation of an elusive fractional quantum Hall state, and, at high magnetic fields, a fractal phenomenon in the electronic structure called the Hofstadter butterfly.

Bibliography

Hunt, B., Sanchez-Yamagishi, J. D., Young, A. F., Yankowitz, M., LeRoy, B. J., Watanabe, K., Taniguchi, T., Moon, P., Koshino, M., Jarillo-Herrero, P., & Ashoori, R. C. (2013). Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure. Science, 340(6139), 1427â1430.

Authors 11

B. Hunt (first)
J. D. Sanchez-Yamagishi (additional)
A. F. Young (additional)
M. Yankowitz (additional)
B. J. LeRoy (additional)
K. Watanabe (additional)
T. Taniguchi (additional)
P. Moon (additional)
M. Koshino (additional)
P. Jarillo-Herrero (additional)
R. C. Ashoori (additional)

References 44 Referenced 1,477

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Dates

Type	When
Created	12 years, 3 months ago (May 17, 2013, 12:53 a.m.)
Deposited	1 year, 7 months ago (Jan. 10, 2024, 9:36 a.m.)
Indexed	2 days, 12 hours ago (Aug. 30, 2025, 12:59 p.m.)
Issued	12 years, 2 months ago (June 21, 2013)
Published	12 years, 2 months ago (June 21, 2013)
Published Print	12 years, 2 months ago (June 21, 2013)

Funders 0

None

BibTeX

@article{Hunt_2013, title={Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure}, volume={340}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1237240}, DOI={10.1126/science.1237240}, number={6139}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Hunt, B. and Sanchez-Yamagishi, J. D. and Young, A. F. and Yankowitz, M. and LeRoy, B. J. and Watanabe, K. and Taniguchi, T. and Moon, P. and Koshino, M. and Jarillo-Herrero, P. and Ashoori, R. C.}, year={2013}, month=jun, pages={1427–1430} }

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