Chinese Physics Letters
Temperature Dependent In-Plane Anisotropic Magnetoresistance in HfTe₅ Thin Layers
Chinese Physics Letters · 38, 017201 (2021)
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Introduction
In-plane angular magnetoresistance and the planar Hall effect of HfTe₅ thin layers vary strongly with temperature. The authors discuss reduced spin scattering as a possible origin of the negative longitudinal signal.
A closer reading
A resistance decrease in a parallel field is not unique to one mechanism. The temperature dependence and angular pattern impose more constraints than a single field sweep, especially when comparing a spin-scattering interpretation with a chiral-anomaly one.