Emerging orbitronics assumes long-range orbital current transport, analogous to spin currents. However, recent theory and experiments challenge this view, showing rather local characters for orbital polarization and orbit-spin conversions. We study angular momentum generated by ferromagnetic resonance and thermal gradients in Ni/(Pt)Ti/Au heterostructures. The observed charge current produced is independent of Ti thickness up to 60 nm, incompatible with orbital transport in Ti. Instead, its magnitude depends on both Ti interfaces, evidencing spin-mediated transport in between after and before local orbit-spin interconversions.
@article{arxiv.2603.28075,
title = {Unconventional views on orbitronics supported by experimental results},
author = {Melissa Yactayo and A. Pezo and J. L. Ampuero and M. Tian and L. Badie and J. Quispe-Marcatoma and C. V. Landauro and Y. Xu and Sébastien Petit-Watelot and Michel Hehn and A. Fert and J. -C. Rojas-Sánchez},
journal= {arXiv preprint arXiv:2603.28075},
year = {2026}
}