Quantum Conductance in Semimetallic Bismuth Nanocontacts

Details Quantum Conductance in Semimetallic Bismuth Nanocontacts Quantum Conductance in Semimetallic Bismuth Nanocontacts

2002-05-07

arxiv.org/abs/cond-mat/0205122v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages including 4 figures. Accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.88.246801

Electronic transport properties of bismuth nanocontacts are analyzed by means of a low temperature scanning tunneling microscope. The subquantum steps observed in the conductance versus elongation curves give evidence of atomic rearrangements in the contact. The underlying quantum nature of the conductance reveals itself through peaks in the conductance histograms. The shape of the conductance curves at 77 K is well described by a simple gliding mechanism for the contact evolution during elongation. The strikingly different behaviour at 4 K suggests a charge carrier transition from light to heavy ones as the contact cross section becomes sufficiently small.

Affiliated with

Also associated with

No associations

Rating

Quantum Conductance in Semimetallic Bismuth Nanocontacts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum Conductance in Semimetallic Bismuth Nanocontacts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Conductance in Semimetallic Bismuth Nanocontacts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-658518