Abstract
To investigate the possibility of estimating hot electron phase coherence at high temperature, the current-voltage (I-V) characteristic of a triple-barrier resonant tunneling diode (TBRTD) is analyzed taking phase breaking into account. When the central barrier width is larger than 7 nm in GaInAs/InP TBRTD, the width of the peak in the I-V curve is determined predominantly by the phase breaking. Therefore the peak width provides the information of the phase coherent length of the hot electrons. It is shown that the phase coherent length can be estimated up to 100 K using TBRTD.
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