Аннотация:
We investigate the disturbance of the InAs nanowire resistance by a
conductive tip of a scanning probe microscope at helium temperature as
a function of the tip position in close vicinity to the nanowire. At
the tip displacement along the wire the resistance
($R_{\rm wire} \simeq 30$ k$\Omega$, what is typical for diffusive regime) demonstrates
quasi-periodical oscillations with an amplitude about $3\%$. The period
of the oscillations depends on the number of electrons in the nanowire
and is consistent with expected for standing electron waves caused by
ballistic electrons in the top subband of the InAs nanowire.