Lateral confinement in LAO/STO nanowires reverses the t2g orbital energy ordering, and topological superconducting phases appear preferentially when the heavy, nearly flat yz bands begin to fill.
Details about the calculation of the topological invariant are provided in Appendix B
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Evolution of topological superconductivity by orbital selective confinement in oxide nanowires
Lateral confinement in LAO/STO nanowires reverses the t2g orbital energy ordering, and topological superconducting phases appear preferentially when the heavy, nearly flat yz bands begin to fill.