Absence of signatures of Weyl orbits in the thickness dependence of quantum transport in cadmium arsenide

In a Weyl orbit, the Fermi arc surface states on opposite surfaces of the topological semimetal are connected through bulk Weyl or Dirac nodes. Having a real-space component, these orbits are expected to accumulate a sample thickness dependent phase. Here, it is shown that small variations in the carrier density, in combination with the relative insensitivity of the low-field Hall data to such variations, does not allow for invoking Weyl orbits based on the thickness dependence for realistic samples.