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Monday, August 11 • 14:00 - 16:00
Two Dimensional Systems Beyond Graphene I

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Oral: Marcos Verissimo-Alves
Group-IV Nanosheets with vacancies: A Tight-Binding Extended Huckel Study

Co-authors: Adriano de Souza Martins

Invited: Guy Le Lay

Silicene & Germanene, Graphene's Cousins

Silicene and germanene are novel allotropes of silicon and germanium and the counterparts of graphene [1]. They are predicted to be two-dimensional topological insulators, respectively up to about 10K and nearly room temperature. The mobilities of their charge carriers are expected to be very high, potentially exceeding those of graphene for the latter. After describing our realization of epitaxial single [2] and multilayer silicene on silver (111) substrates [3], I will present hints of the synthesis of epitaxial germanene, a novel germanium allotrope that does not exist in nature [4]. I will further review fundamental results on these novel two-dimensional materials, which might open the way to tantalizing applications.

[1] G. Brumfiel, Nature, 495, 153 (2013); Nature 485, 9 (2012).
[2] P. Vogt et al., Phys. Rev. Lett., 108, 155501 (2012).
[3] P. Vogt et al., Appl. Phys. Lett., 104, 021602 (2014).
[4] A. Resta et al., to be published.


Oral: Nilanthy Balakrishnan

Tuning the Bandgap of Exfoliated InSe Nanosheets by Quantum Confinement
Co-authors: G.W. Mudd, S. A. Svatek, T. Ren, A. Patanè, O. Makarovsky, L. Eaves, P. H. Beton, Z. D. Kovalyuk, G. V. Lashkarev, Z. R. Kudrynskyi  and A. I. Dmitriev

Oral: Yukihiro Harada

Two-Dimensional Electronic States of Epitaxial Nitrogen Atomic Sheet in GaAs Grown by Nitrogen Delta-Doping Technique
Co-authors: Takeshi Baba, Takashi Kita

Oral: Steven Koenig

Electric Field Effect in Ultrathin Black Phosphorus 


Session Chairs

Mei-Yin Chou

Georgia Tech


Guy Le Lay

Professor, Université d'Aix-Marseille
Prof. Guy Le Lay is Full Professor of Physics since 1981. He has reached the topmost level attainable in France in 2007 (Classe exceptionnelle 2). He has been for several years a member of the Comité National des Universités and was for five years President of the regional section of the French Physical Society. Prof. Le Lay is a recognized specialist of Nanoscience, as well as an expert in Synchrotron Radiation. During his... Read More →

Monday August 11, 2014 14:00 - 16:00
Room 16B

Attendees (21)