Negative resistance and local charge-density-wave dynamics - art. no. 126401

Authors
van der Zant, HSJ Slot, E Zaitsev-Zotov, SV Artemenko, SN
Citation
Hsj. Van Der Zant et al., Negative resistance and local charge-density-wave dynamics - art. no. 126401, PHYS REV L, 8712(12), 2001, pp. 6401
Citations number
27
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8712
Issue
12
Year of publication
2001
Database
ISI
SICI code
0031-9007(20010917)8712:12<6401:NRALCD>2.0.ZU;2-8
Abstract
Charge-density-wave (CDW) dynamics is studied on a submicron length scale i n NbSe3 and o-TaS3. Regions of negative absolute resistance are observed in the CDW sliding regime at sufficiently low temperatures. The origin of the negative resistance is attributed to the different forces that the deforme d CDW and quasiparticles feel: the force on the CDW is merely caused by a d ifference of the electric potentials, while the quasiparticle cur-rent is g overned by a difference of the electrochemical potentials.