Work

Surface of black phosphorus: a playground for tunable electronic states and interactions

Year: 2026

Type: article

Abstract: Black phosphorus (BP)has attracted considerable interest as a two-dimensional semiconductor because of its high carrier mobility and unique anisotropy. The surface of BP has recently been demonstrated to host a variety of emergent phenomena, including an anisotropic Dirac semimetal state, a dipole liquid phase, and even strongly correlated effects. In this Perspective, we first summarize the electronic band structure of BP, with an emphasis on the surface resonance bands that experience tunable electronic reconstruction. We address the critical role of surface resonance bands in the screening of an external electric field. Around surface impurities, charging phenomena reveal reduced screening and spatially inhomogeneous electron localization, which invites an interplay between localization, electronic reconstruction, and correlation. We propose the surface of BP as a versatile playground for tunable electronic states and interactions, where many open questions and interesting directions remain to be explored.

Source: Journal of Physics Condensed Matter

DOI: 10.1088/1361-648x/ae7246

Authors: Jian-Feng Ge, Doohee Cho

Institutions: Max Planck Institute for Chemical Physics of Solids, Yonsei University

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,325

Funder: National Research Foundation of Korea