J. Phys. IV France
Volume 131, December 2005
Page(s) 225 - 226
Publié en ligne 18 janvier 2006
International Workshop on Electronic Crystals
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 225-226

DOI: 10.1051/jp4:2005131056

Charge density waves modulation in different chains of NbSe3

C. Brun1, Z.Z. Wang1 and P. Monceau2

1  Laboratoire de Photonique et de Nanostructures, CNRS, route de Nozay, 91460 Marcoussis, France
2  Centre de Recherches sur les Très Basses Températures-CNRS, Grenoble, France

Using low temperature (LT) scanning tunnelling microscopy (STM) under ultra-high vacuum (UHV), we studied charge density waves (CDW) modulations in different chains of NbSe3 at 5 K and 78 K. Both the underlying molecular lattice and two (one) CDW superlattice (s) were observed simultaneously at 5 K (78 K) with atomic resolution. Three types of chains were present in topographical constant current images showing different bias voltage dependence. Different from the early STM observation, at 5 K, the modulation of LT-CDW in chain I is found to be 2-3 times more important than that in chain II.

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