Spintronics and spincaloritronics in topological insulators

TL;DR

This paper explores spintronics and spincaloritronics phenomena in topological insulators, demonstrating effects like spin polarization, magnetic heat transport, and thermoelectric transport, with discussions on finite-size effects and band structure engineering.

Contribution

It provides new insights into spin and heat transport effects in topological insulators, including effects induced by light and junction refraction, and discusses interface state engineering.

Findings

Spintronics effects in 2D and 3D topological insulators with ferromagnets.

Spin polarization induced by circularly polarized light.

Transverse magnetic heat and thermoelectric transport in topological insulators.

Abstract

We study spintronics and spincaloritronics in topological insulators. We show spintronics effects in 2D topological insulator junctions and 3D topological insulators coupled to ferromagnets. We also investigate spin polarization on the surface of a topological insulator induced by a circularly polarized light and refraction at the junction between two topological insulators. As for spincaloritronics effects, we show transverse magnetic heat transport and thermoelectric transport in topological insulators. Finite-size effect in topological insulators and band structure engineering of interface states of topological insulators are also discussed.