TY  - JOUR
AV  - public
Y1  - 2007/01/26/
VL  - 98
TI  - Single-electron population and depopulation of an isolated quantum dot using a surface-acoustic-wave pulse
N1  - © 2007 The American Physical Society
IS  - 4
SN  - 0031-9007
PB  - AMERICAN PHYSICAL SOC
UR  - http://dx.doi.org/10.1103/PhysRevLett.98.046801
ID  - discovery1314452
N2  - We use a pulse of surface acoustic waves (SAWs) to control the electron population and depopulation of a quantum dot. The barriers between the dot and reservoirs are set high to isolate the dot. Within a time scale of similar to 100 s the dot can be set to a nonequilibrium charge state, where an empty (occupied) level stays below (above) the Fermi energy. A pulse containing a fixed number of SAW periods is sent through the dot, controllably changing the potential, and hence the tunneling probability, to add (remove) an electron to (from) the dot.
KW  - CHANNEL
A1  - Kataoka, M
A1  - Schneble, RJ
A1  - Thorn, AL
A1  - Barnes, CHW
A1  - Ford, CJB
A1  - Anderson, D
A1  - Jones, GAC
A1  - Farrer, I
A1  - Ritchie, DA
A1  - Pepper, M
JF  - PHYS REV LETT
ER  -