Student Seminar

Quantum Behaviour in a Black Phosphorus Two-Dimensional Electron System

Fri, 24 Feb 2017 1:30 PM
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Student Seminar
Quantum Behaviour in a Black Phosphorus Two-Dimensional Electron System

Pingyi Zhang
Department of Physics, SFU

Feb. 24 2017 at 1:30pm in C9000

Synopsis

Two-dimensional electron gases (2DEG) have allowed rich physical phenomena to be probed at the quantum level in condensed-matter physics. Atomically thin black phosphorus provides a maximum level of quantum confinement, while introducing remarkable new physics to the 2DEG due to their distinctive electronic structures. Recently,the observation of quantum oscillations and quantum Hall effect in a black phosphorus 2DEG with a high mobility has been reported. In this talk, I will explore the experimental set up and results of a black phosphorus 2DEG and discuss current research going on in black phosphorus.

Ref: Li, Likai, et al. "Quantum oscillations in a two-dimensional electron gas in black phosphorus thin films." Nature nanotechnology (2015).
Li, Likai, et al. "Quantum Hall effect in black phosphorus two-dimensional electron system." Nature nanotechnology (2016).