Dk. Maude et al., ELECTROLUMINESCENCE AND MAGNETOTRANSPORT STUDIES OF A P-I-N SUPERLATTICE DOUBLE-BARRIER RESONANT-TUNNELING STRUCTURE, Semiconductor science and technology, 9(5), 1994, pp. 540-544
Magnetotransport and electroluminescence measurements are reported for
a p-i-n AlAs/GaAs double-barrier resonant tunnelling structure incorp
orating superlattices in the emitter and collector. When a magnetic fi
eld of 15 T is applied parallel to the current a pronounced region of
negative differential resistance (NDR) is observed. Associated with th
e NDR region in the current voltage characteristic the energy of the e
lectroluminescence peak from the centre quantum well is shifted by mor
e than 10 meV for a change in applied bias of only 1 mV as the device
is swept through resonance.