Communications Materials
Strain-tuned topological phase transition and unconventional Zeeman effect in ZrTe₅ microcrystals
Communications Materials · 3, 94 (2022)
Read original paper
Introduction
Strain-dependent magnetotransport in ZrTe₅ follows a weak-to-strong topological-insulator transition through an intervening gapless state. The oscillation amplitudes also reveal a contribution from a spin-dependent Berry phase.
A closer reading
A tunable sample reduces the ambiguity of comparing different crystals. Oscillation amplitude carries phase information here, so extracting a spin splitting without accounting for geometric phase can give a misleading interpretation.