THE INCREASE OF THE RATE OF THE MONOMOLECULAR PROCESS OF EXCITON FORMATION IN A STRONG MAGNETIC-FIELD

We have calculated the rate of the binding of electron-hole pairs (EHP ) into Wannier-Mott excitons in a strong magnetic field of the linear approximation and in the intensity of the exciting light. It is shown that the application of a strong magnetic held leads to an abrupt incr ease in the rate of the monomolecular (linear) process of the exciton formation in alpha(-2) times for N greater than or equal to 4 and in a lpha(-1) times for N = 2 (N is the number of LO phonons being emitted, alpha is the Frohlich coupling constant). For InSb (alpha = 0.014) it means that the exciton formation rate increases 10(4) times for N gre ater than or equal to 4 and 10(2) times for N = 2.