Pseudomorphically grown p-type Si/SiGe double barrier resonant tunneling di
odes have been investigated. The main resonances are shown to be due to tun
neling through heavy and light hole states in the well. However, temperatur
e activated resonances and resonances arising in a B-field perpendicular to
the current show the importance of the complicated emitter structure and i
ts energy spectrum. (C) 2000 Elsevier Science S.A. All rights reserved.