DataVXAdvanced Functional MaterialsPaper
journal article·2023-05

Dirac Fermions in Blue Phosphorene Monolayer

Youness Kaddar, Wei Zhang, Hanna Enriquez, Yannick J. Dappe, Azzedine Bendounan, Gérald Dujardin, Omar Mounkachi, Abdallah El kenz, Abdelilah Benyoussef, Abdelkader Kara, Hamid Oughaddou

Advanced Functional Materials· Volume 33· Issue 21
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Source abstract

Abstract

Abstract 2D materials beyond graphene and in particular 2D semiconductors have raised interest due to their unprecedented electronic properties, such as high carrier mobility or tunable bandgap. Blue phosphorene is an allotrope of black phosphorene that resembles graphene as it presents a honeycomb structure. However, it is known to have semiconductor character and the crucial point is to determine whether this hexagonal phase of phosphorene presents Dirac fermions as in graphene. Here, the first compelling experimental evidence of Dirac fermions in blue phosphorene layer grown on Cu(111) surface is presented. The results highlight the formation of a highly ordered blue phosphorene sheet with a clear Dirac cone at the high symmetry points of the Brillouin Zone. The charge carriers behave as massless relativistic particles. Therefore, all the expectations held for graphene, such as high‐speed electronic devices based on ballistic transport at room temperature, may also be applied to blue phosphorene.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: 2D Materials and Applications · Graphene research and applications · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScI) B.P. 1014 Faculty of Science Mohammed V University Rabat 10100 Morocco

CNRS Institut des Sciences Moléculaires d'Orsay (ISMO) Université Paris‐Saclay Bât. 520 91405 Orsay France

SPEC, CEA, CNRS Université Paris‐Saclay 91191 Gif‐sur‐Yvette France

TEMPO Beamline, Synchrotron SOLEIL L'Orme des Merisiers Saint‐Aubin B.P.48 F‐91192 Gif‐sur‐Yvette France

MSDA Mohammed VI Polytechnic University Lot 660 Hay Moulay Rachid Ben Guerir 43150 Morocco

Academy of Science and Technology Rabat 10100 Morocco

Department of Physics University of Central Florida Orlando FL 32816 USA

IRMC Imam Abdulrahman Bin Faisal University Dammam 32210 Saudi Arabia

Département de physique CY Cergy Paris Université F‐95031 Cergy‐Pontoise Cedex France

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