One-dimensional weak localization of electrons in a single InAs nanowire.
We report on low temperature (2-30K) electron transport and magneto-transport measurements of a chemically synthesized InAs nanowire. Both the temperature, T, and transverse magnetic field dependences of the nanowire conductance are consistent with the functional forms predicted in one-dimensional (1D) weak localization theory. By fitting the magneto-conductance data to theory, the phase coherence length of electrons is determined to be tens of nanometers with a T(-1/3) dependence. Moreover, as the electron density is increased by a gate voltage, the magneto-conductance shows a possible signature of suppression of weak localization in multiple 1D subbands.
Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, USA.
Dong
D
Liang
Mohammed R
MR
Sakr
Xuan P A
XP
Gao