S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 225-226
Charge density waves modulation in different chains of NbSe3C. 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.
© EDP Sciences 2005