Magnetooptical detection of carrier-dynamics in p-type indiumantimonide

Semidestructive and nondestructive operation of single turn coils provides d B/d t>10 7 T s −1 and gives by the transient magnetic field an excellent tool for the study of time delayed thermalisation effects due to magnetic field dependent shifts of energy levels. For 10.6 μm radiation in p-type InSb a pronounced delayed population effect depending on the magnetic history of the sample is observed. Due to the oscillatory character of the generated magnetic field this behavior can be followed over several oscillations each having a period of 12 μs.