Work

Giant nonlocality in nearly compensated two-dimensional semimetals

Year: 2020

Type: article

Abstract: In compensated two-component systems in confined, two-dimensional geometries, nonlocal response may appear due to an external magnetic field. Within a phenomenological two-fluid framework, we demonstrate the evolution of charge flow profiles and the emergence of a giant nonlocal pattern dominating charge transport in a magnetic field. Applying our approach to the specific case of intrinsic graphene, we suggest a simple physical explanation for the experimental observation of giant nonlocality. Our results provide an intuitive way to predict the outcome of future experiments exploring the rich physics of many-body electron systems in confined geometries as well as to design possible applications.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.102.081114

Authors: S. Danz, M. Titov, B. N. Narozhny

Institutions: Karlsruhe Institute of Technology, Radboud University Nijmegen, ITMO University, National Research Nuclear University MEPhI

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze