Hc. Ren et Mk. Wu, T-asymmetry signals originating from magnetic order through the double-exchange mechanism, PHYS REV B, 58(23), 1998, pp. 15440-15448
The photon self-energy tensor in a crystal with double exchange and ferroma
gnetic or canting magnetic orders is analyzed at zero temperature with emph
asis on the signal of the time-reversal invariance breaking. Three comparab
le contributions, spin susceptibility, local magnetic field and spin-orbit
coupling are estimated and the prospect of their experimental detection is
discussed. [S0163-1829(98)04248-9].