TY  - JOUR
AU  - Zhukov, A. A.
AU  - Volk, Ch.
AU  - Winden, A.
AU  - Hardtdegen, H.
AU  - Schäpers, Th.
TI  - Negative differential conductance in InAs wire based double quantum dot induced by a charged AFM tip
JO  - Journal of experimental and theoretical physics
VL  - 115
IS  - 6
SN  - 1090-6509
CY  - Heidelberg [u.a.]
PB  - Springer
M1  - FZJ-2013-04802
SP  - 1062 - 1067
PY  - 2012
AB  - We investigate the conductance of an InAs nanowire in the nonlinear regime in the case of low electron density where the wire is split into quantum dots connected in series. The negative differential conductance in the wire is initiated by means of a charged atomic force microscope tip adjusting the transparency of the tunneling barrier between two adjoining quantum dots. We confirm that the negative differential conductance arises due to the resonant tunneling between these two adjoining quantum dots. The influence of the transparency of the blocking barriers and the relative position of energy states in the adjoining dots on a decrease of the negative differential conductance is investigated in detail.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000313068000014
DO  - DOI:10.1134/S1063776112110131
UR  - https://juser.fz-juelich.de/record/138715
ER  -