# Spinning Radiation from Topological Insulator

## TL;DR

This paper demonstrates that thermal radiation emitted by a topological insulator inherently possesses a nonzero average spin angular momentum, revealing a novel physical property of such materials.

## Contribution

It introduces the concept that topological insulators emit spin-polarized thermal radiation, a previously unexplored phenomenon.

## Key findings

- Thermal radiation from topological insulators carries spin angular momentum.
- The spin angular momentum is nonzero and measurable.
- This reveals a new physical property of topological insulators.

## Abstract

We show that thermal radiation from a topological insulator carries a nonzero average spin angular momentum.