Monte Carlo studies of the intrinsic time-domain response of nanoscale three-branch junctions
Journal article, 2012
We present a Monte Carlo time-domain study of nanostructured ballistic three-branch junctions (TBJs) excited by both step-function and Gaussian picosecond transients. Our TBJs were based on InGaAs 2-dimensional electron gas heterostructures and their geometry followed exactly the earlier experimental studies. Time-resolved, picosecond transients of both the central branch potential and the between-the-arms current demonstrate that the bandwidth of the intrinsic TBJ response reaches the THz frequency range, being mainly limited by the large-signal, intervalley scattering, when the carrier transport regime changes from ballistic to diffusive.
electrical-properties
3-terminal ballistic junctions
room-temperature
nonlinear operation
Author
I. Iniguez-de-la-Torre
University of Salamanca
Helena Rodilla
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
J. Mateos
University of Salamanca
T. Gonzalez
University of Salamanca
H. Irie
University of Rochester
Nippon Telegraph and Telephone Corporation
R. Sobolewski
University of Salamanca
Journal of Applied Physics
0021-8979 (ISSN) 1089-7550 (eISSN)
Vol. 111 8 084511Semiconductor Nanodevices for Room temperature THz Emission and Detection (ROOTHz)
European Commission (EC) (EC/FP7/243845), 2010-01-01 -- 2013-01-31.
Areas of Advance
Information and Communication Technology
Subject Categories
Physical Sciences
DOI
10.1063/1.4704371