Sequential analysis ofresonanttunneling diodes

Inrecentyears,ithasbeenestablished thata substantial partofthe currentthrough a double barrier resonanttunneling structure istransported bysequential tunneling instead offully coherent tunneling. Thetheoretical frameworkofsequential tunneling isespecially attractive sincethe admittance ofthedevice can beobtained immediately. Inorder tocomplete thismodelwe haveinvestigated thefrequency behavior ofthecharging and discharging phenomena inthequantum well. Allgeometric capacitances and thequantum capacitance [1] havebeentakenintoaccountinthismodel.[21