R. Brazis et al., INPLANE PROPAGATION OF MILLIMETER WAVES IN PERIODIC MAGNETOACTIVE SEMICONDUCTOR STRUCTURES, International journal of infrared and millimeter waves, 18(8), 1997, pp. 1575-1584
Non-transmission bands of electromagnetic waves propagating along the
layers in periodic structures are studied in the steady magnetic field
perpendicular both to the uniaxis and the direction of propagation. T
he band control range (36 divided by 75 GHz) in n-InSb/Al2O3 structure
s with the carrier densities 4 10(13) less than or equal to n less tha
n or equal to 8 10(14) cm(-3) in magnetic fields B-o less than or equa
l to 2 T at temperatures 77 less than or equal to T less than or equal
to 200 K is found to agree with the calculated in the effective mediu
m approximation. Attenuation down to -50 dB within the band is observe
d. The band lineshape is found to indicate additional effects related
to the finite layer thickness and periodicity termination predicted by
a more rigorous theory of dispersion.