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VOLUME 67 (1998) | ISSUE 12 | PAGE 973
Quantum corrections to a conductance of AlGaAs/GaAs-based quantum quasiballistic wires
PACS: 71.70.Ej, 73.40.-c
Quantum conductance corrections (QCC) due to weak localization and interaction effects of quantum quasiballistic wires have been investigated for the first time. At temperatures in the range 2K<T<12Ka crossover of these corrections from one-dimensional behavior to zero-dimensional one have been observed. It is shown that phase coherence length in the wires studied is less than length Lt = (HD/kT)1/2 at all temperatures. It is found that the conventional theory of QCC describes correctly the experimental temperature dependence of QCC but gives much lower value than the experimental one.