On T-violation signals originating from magnetic orders through double exchange mechanism

TL;DR

This paper investigates how magnetic orders in crystals with double exchange influence T-violation signals, analyzing photon self-energy tensor contributions to identify potential experimental signatures of time-reversal symmetry breaking.

Contribution

It provides a theoretical analysis of T-violation signals arising from magnetic orders via the double exchange mechanism, emphasizing photon self-energy tensor contributions at zero temperature.

Findings

Identifies three key contributions: spin susceptibility, local magnetic field, and spin-orbit coupling.

Estimates the magnitude of these contributions for experimental detection.

Discusses the feasibility of observing T-violation signals in such magnetic systems.

Abstract

The photon self energy tensor in a crystal with double exchange and ferromagnetic or canting magnetic orders is analyzed at zero temperature with emphasis on the signal of the time-reversal invariance breaking. Three comparable contributions, spin susceptibility, local magnetic field and spin-orbit coupling are estimated and the prospect of their experimental detection is discussed.