Engineering a pure Dirac regime in ZrTe$_5$

Engineering a pure Dirac regime in ZrTe$_5$

Blog Article

Real-world topological semimetals typically exhibit Dirac and Weyl nodes that coexist with trivial Fermi pockets.This tends to mask the physics of the relativistic quasiparticles.Using the example of map of frank church wilderness ZrTe$_5$, we show that strain provides a powerful tool for in-situ tuning of the band structure such that all trivial pockets are pushed far away from the Fermi energy, but only for a certain range of Van maxbotix hrlv ez1 der Waals gaps.Our results naturally reconcile contradicting reports on the presence or absence of additional pockets in ZrTe$_5$, and provide a clear map of where to find a pure three-dimensional Dirac semimetallic phase in the structural parameter space of the material.