J. Phys. IV France 12 (2002) Pr9-185
Fabricated structures for studying mesoscopic physics of charge density wavesK. O'Neill1, E. Slot2, H. van der Zant2, K. Cicak1 and R. Thorne1
1 Department of Physics, Cornell University, Ithaca, U.S.A.
2 TU Delft, Delft, The Netherlands
We present new methods for patterning and controlling the cross-section of the CDW conductor niobium triselenide crystals to sub-micron dimensions using photolithography and electron beam lithography. Experiments demonstrating these techniques are presented: accurate four-probe measurement of the c-axis resistivity as a function of temperature, and measurements of width and thickness-dependent size effects on the CDW condensate. In all samples, a region with near-perfect rectangular cross-section is left to provide a control, eliminating the need to compare different samples and reduces the role of sample-to-sample variations in the analyses.
© EDP Sciences 2002