Departmental Papers (ESE)

Document Type

Journal Article

Date of this Version

September 2006


Postprint version. Published in Applied Physics Letters, Volume 89, Issue 12, Article 123119, September 2006, 3 pages.
Publisher URL:


A highly disordered pregraphitic carbon nanofiber with the product of its quasi-Fermi wave vector and mean free path close to 1 was fabricated using electrospinning technique. Strong localization made the conductivity vary with temperature as σ [proportional to]Τ-1/2 from 300 to 5 K, suggesting variable range hopping as the conductivity mechanism, and resulted in a large negative magnetoresistance from 300 K down to 1.9 K that can still be quantitatively described using weak localization and electron interaction models.



Date Posted: 07 December 2006

This document has been peer reviewed.