%0 Journal Article
%T The electronic transport of top subband and disordered sea in InAs nanowire in presence of a mobile gate
%A A. A. Zhukov
%A Ch. Volk
%A A. Winden
%A H. Hardtdegen
%A Th. Schaepers
%J Physics
%D 2013
%I arXiv
%X We performed measurements at helium temperatures of the electronic transport in an InAs quantum wire ($R_{wire} \sim 30$\,k$\Omega$) in the presence of a charged tip of an atomic force microscope serving as a mobile gate. The period and the amplitude of the observed quasiperiodic oscillations are investigated in detail as a function of electron concentration in the linear and non-linear regime. We demonstrate the influence of the tip-to-sample distance on the ability to locally affect the top subband electrons as well as the electrons in the disordered sea. Furthermore, we introduce a new method of detection of the subband occupation in an InAs wire, which allows us to evaluate the number of the electrons in the conductive band of the wire.
%U http://arxiv.org/abs/1309.3253v2