Sergei Urazhdin

Mar 11, 2024 | link.aps.org | Sergei Urazhdin

We show that the interplay between spin-orbit coupling and cubic symmetry breaking in SrTiO3 results in a highly anomalous Zeeman effect of conduction electrons substantially different among the three conduction subbands and strongly dependent on their splitting. This effect can be measured via electrically driven spin resonance enabled by the interplay between electron hopping and spin-orbit coupling, and enhanced by the near degeneracy of the conduction subbands.

Nov 9, 2023 | link.aps.org | Sergei Urazhdin

We show that electron interaction with the crystal lattice imposes stringent symmetry constraints on the atomic orbital moment propagation. We present examples that elucidate the underlying mechanisms and reveal an additional effect of ultrafast orbital moment oscillations not captured by the semiclassical models. The constraints revealed by our analysis warrant reinterpretation of prior observations and suggest routes for efficient orbitronic device implementation.

Aug 28, 2023 | link.aps.org | Sergei Urazhdin |Ekram Towsif |Alexander Mitrofanov

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