Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene

Optical transitions between Landau levels (LL) in solids are described by selection rules associated with the LL index. Here, the authors perform photocurrent spectroscopy measurements on high-quality bilayer graphene to investigate the interband LL transitions, and observe valley-dependent optical...

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Main Authors:	Long Ju, Lei Wang, Xiao Li, Seongphill Moon, Mike Ozerov, Zhengguang Lu, Takashi Taniguchi, Kenji Watanabe, Erich Mueller, Fan Zhang, Dmitry Smirnov, Farhan Rana, Paul L. McEuen
Format:	Article
Language:	English
Published:	Nature Publishing Group 2020-06-01
Series:	Nature Communications
Online Access:	https://doi.org/10.1038/s41467-020-16844-y

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spelling	doaj-c726a2693f6a4acda70cfc9e58c999792021-06-13T11:18:04ZengNature Publishing GroupNature Communications2041-17232020-06-011111710.1038/s41467-020-16844-yUnconventional valley-dependent optical selection rules and landau level mixing in bilayer grapheneLong Ju0Lei Wang1Xiao Li2Seongphill Moon3Mike Ozerov4Zhengguang Lu5Takashi Taniguchi6Kenji Watanabe7Erich Mueller8Fan Zhang9Dmitry Smirnov10Farhan Rana11Paul L. McEuen12Kavli Institute at Cornell for Nanoscale ScienceKavli Institute at Cornell for Nanoscale ScienceDepartment of Physics, City University of Hong KongNational High Magnetic Field LaboratoryNational High Magnetic Field LaboratoryNational High Magnetic Field LaboratoryNational Institute for Materials ScienceNational Institute for Materials ScienceLaboratory of Atomic and Solid State Physics, Cornell UniversityDepartment of Physics, University of Texas at DallasNational High Magnetic Field LaboratorySchool of Electrical and Computer Engineering, Cornell UniversityKavli Institute at Cornell for Nanoscale ScienceOptical transitions between Landau levels (LL) in solids are described by selection rules associated with the LL index. Here, the authors perform photocurrent spectroscopy measurements on high-quality bilayer graphene to investigate the interband LL transitions, and observe valley-dependent optical transitions obeying unusual selection rules.https://doi.org/10.1038/s41467-020-16844-y
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Long Ju Lei Wang Xiao Li Seongphill Moon Mike Ozerov Zhengguang Lu Takashi Taniguchi Kenji Watanabe Erich Mueller Fan Zhang Dmitry Smirnov Farhan Rana Paul L. McEuen
spellingShingle	Long Ju Lei Wang Xiao Li Seongphill Moon Mike Ozerov Zhengguang Lu Takashi Taniguchi Kenji Watanabe Erich Mueller Fan Zhang Dmitry Smirnov Farhan Rana Paul L. McEuen Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene Nature Communications
author_facet	Long Ju Lei Wang Xiao Li Seongphill Moon Mike Ozerov Zhengguang Lu Takashi Taniguchi Kenji Watanabe Erich Mueller Fan Zhang Dmitry Smirnov Farhan Rana Paul L. McEuen
author_sort	Long Ju
title	Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
title_short	Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
title_full	Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
title_fullStr	Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
title_full_unstemmed	Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
title_sort	unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene
publisher	Nature Publishing Group
series	Nature Communications
issn	2041-1723
publishDate	2020-06-01
description	Optical transitions between Landau levels (LL) in solids are described by selection rules associated with the LL index. Here, the authors perform photocurrent spectroscopy measurements on high-quality bilayer graphene to investigate the interband LL transitions, and observe valley-dependent optical transitions obeying unusual selection rules.
url	https://doi.org/10.1038/s41467-020-16844-y
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Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene

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