Weak anti-localization offers an experimental tool to address spin--orbit coupling of two-dimensional oxide surfaces and interfaces via magneto-transport. To overcome the shortcomings of the formulation for single-band spin-1/2 electrons, we consider an effective three-band model that allows a decomposition into a pseudo-spin representation 1/2+3/2. Whereas the well-established spin-1/2 transport signature results from the singlet and triplet sectors in the Cooperon equation, a new structure originates from the quintet and septet sectors generated by the spin 3/2x3/2 representation.
@article{arxiv.1904.11770,
title = {Anti-Localization in Oxides: Effective Spin-3/2 Model},
author = {Patrick Seiler and Elias Lettl and Daniel Braak and Thilo Kopp},
journal= {arXiv preprint arXiv:1904.11770},
year = {2019}
}