Journal
PHYSICAL REVIEW LETTERS
Volume 123, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.086803
Keywords
-
Categories
Funding
- Swiss National Science Foundation (FNS/SNF) under Division II
- FNS/SNF Ambizione Grant [PZ00P2_174038]
- Swiss National Science Foundation (SNF) [PZ00P2_174038] Funding Source: Swiss National Science Foundation (SNF)
Ask authors/readers for more resources
We study the Hall response of two-dimensional lattice systems of charged fermions in a transverse magnetic field, in the ballistic coherent limit. We identify a setup in which this response vanishes over wide regions of parameter space: the Landauer-Buttiker setup commonly studied for coherent quantum transport, consisting of a strip contacted to biased ideal reservoirs of charges. We show that this effect does not rely on particle-hole symmetry, and is robust to a variety of perturbations including variations of the transverse magnetic field, chemical potential, and temperature. We trace this robustness back to a topological property of the Fermi surface: the number of Fermi points with positive velocity of the system. We argue that the mechanism leading to a vanishing Hall response applies to noninteracting and interacting systems alike, which we verify in concrete examples using density-matrix renormalization group simulations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available