Nonlinear magneto-optical properties of colossal magnetoresistive manganites.
Pr(1--x)CaxMnO(3) and Nd(1--x)SrxMnO(3) were investigated with three-photon difference frequency generation (DFG). This method allows one to determine both the crystalline and the magnetic symmetry. In the highly ordered low-temperature phase of Nd(0.50)Sr(0.50)MnO(3), a DFG contribution coupling simultaneously to antiferromagnetic and charge ordering was observed and used to reveal the formation of domains. Thus, magnetically induced three-photon processes are introduced into the fields of both nonlinear magneto-optics and colossal magnetoresistance as a powerful new method.
Fiebig
M
M
Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan. fiebig@janeway.physik.uni-dortmund.de
Miyano
K
K
Tomioka
Y
Y
Kuwahara
H
H
Tokura
Y
Y
Reimann
K
K