Berlin 2024 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 18: 2D Materials and Heterostructures: Emerging Materials and Phenomena
HL 18.1: Vortrag
Dienstag, 19. März 2024, 09:30–09:45, EW 201
Quantum transport in monolayer and multilayer Black Phosphorene — Jouda J. Khabthani1, Khouloud Chika1, Ghassen Jemaï1, Didier Mayou2, and •Guy Trambly de Laissardière3 — 1Lab. de Physique de la Matière Condensée, Faculté des Sciences de Tunis, University El Manar, Tunis, Tunisia — 2Institut Néel, CNRS / Univ. Grenoble Alpes, Grenoble, France — 3Lab. de Physique Théorique et Modélisation, CY Cergy Paris Université / CNRS, Cergy-Pontoise, France
The electronic properties of Phosphorene are very sensitive to local defects such as fonctionalization which may be covalent (resonant) or non-covalent (non-resonant). Here, we present numerical studies on the electronic structure and quantum transport in monolayer Black Phosphorus (BP), few-layer BP, and bulk BP, with a relatively high concentration of defects (a few %). In contrast to the usual Boltzmann approach for electronic transport calculations, our real space method [1,2] takes into account all the effects of defects on the electronic structure itself and the impacts of multiple scattering on conductivity. Our study shows that resonant and non-resonant scatterers have different consequences on the gap and conductivity, sometimes leading to metal-insulator transitions by varying the defect concentration.
- [1] F. Triozon et al., Phys. Rev. B 65, 220202, (2002).
- [2] G. Trambly de Laissardière, D. Mayou, Phys. Rev. Lett. 111, 146601 (2013).
Keywords: Phosphorene; Electronic structure; Quantum transport; Functionalization; Numerical calculation