Abstract
AbstractAn unusual dependence of electrical resistance on the direction of the magnetic field, relative to that of current, in a 2D electron gas with strong spin‐orbit coupling formed at the LaVO3–KTaO3 interface is reported. The observations are incompatible with any previously reported magneto‐transport measurements. Surprisingly, on the one hand the system exhibits signatures of chiral anomaly such as negative magnetoresistance and planar Hall effect, on the other hand, a number of features are even qualitatively beyond the existing theories. It is found that all the unusual features in transport are controlled by the quantum effects originating from strong spin‐orbit coupling induced spin‐momentum locking, and the traditional Lorentz mechanism plays a minimal role. The results not only open up a new avenue related to magneto‐transport in spin‐orbit coupled metals but also pave a path to engineer non‐magnetic materials as sensors for vector magnetic fields.
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