Author/Authors :
Julier، نويسنده , , M and Campo، نويسنده , , J and Coquillat، نويسنده , , J.P. Lascaray، نويسنده , , J.P and Scalbert، نويسنده , , D and Briot، نويسنده , , O، نويسنده ,
Abstract :
Wurtzite GaN on (0001) sapphire is studied by mean of reflectance and magnetocircular dichroism up to 5.5 T at 2 K. This very powerful technique allows us to determine the Zeeman splittings, for the first time to our knowledge, to be about 0.05 meV/T for the XA and XC excitons and almost zero for the XB exciton.