Abstract
Since the first real-space observation of charge density waves (CDW) on cleaved surfaces of 1T-TaS2 by means of a low-temperature scanning tunneling microscope (STM) by Coleman et al. [1], many different CDW materials have been studied by STM and related scanning probe methods [2–5]. STM is particularly well suited for the investigation of the local structure of CDW systems because CDW formation is connected with a modification of the conduction electron wave-functions and the local density of states at the Fermi to level which the STM is directly sensitive to. The relative CDW amplitudes as measured by STM therefore reflect the amount of charge transfer into the CDW condensate. However, the absolute STM corrugation amplitudes are usually enhanced by several different mechanisms compared with results obtained by other experimental methods.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call