Magnetoconductance in Lateral Surface Superlattices
Microfabrication through the use of electron-beam lithography has allowed the creation of nanostructures with interesting and novel properties, and it is now possible to create potential-induced lateral surface superlattices. The magnetoconductance in such structures can be expected to be significantly different from that of normal quasi-two-dimensional systems. Here, we discuss the theoretical understanding and experimental studies that show the presence of the Aharonov-Bohm effect, universal conductance fluctuations, and structure in VH and σxx with h/e and 2h/e periodicity in the flux coupled through each quantum well of the superlattice. At high VSD, we have seen evidence for negative differential conductivity, which might be attributable to Bloch oscillations.
KeywordsLandau Level High Electron Mobility Hall Resistance Hall Voltage Negative Differential Conductivity
Unable to display preview. Download preview PDF.
- 2.J. Ryan, Master’s Thesis, Arizona State University (unpublished)Google Scholar
- 4.D. K. Ferry: In Physics and Technology of Submicron Structures, Ed. by H. Heinrich, G. Bauer, and F. Kuchar (Springer-Verlag, Heidelberg, in press)Google Scholar
- 5.D. K. Ferry, L. A. Akers, and E. W. Greeneich: ULSI Microelectronics ( Prentice-Hall, Englewood Cliffs, N.J., 1988 )Google Scholar
- 7.D. K. Ferry: In Quantum Transport in Semiconductors, Ed. by H. L. Grubin, C. Jacoboni, and D. K. Ferry ( Plenum Press, New York, 1988 )Google Scholar
- 8.J. R. Barker and D. K. Ferry: In Proc. Int. Conf. on Cybernetics and Society (IEEE Press, New York, 1979) p. 762Google Scholar
- 9.R. T. Bate: Bull. Am. Phys. Soc. 22, 407 (1977)Google Scholar
- 14.D. K. Ferry, G. Bernstein, and W.-P. Liu: In Physics and Technology of Submicron Structures, Ed. by H. Heinrich, G. Bauer, and F. Kuchar (Springer-Verlag, Heidelberg, in press)Google Scholar
- 18.R. F. Kazarinov and R. A. Suris: Soy. Phys. Semiconductors 5, 707 (1971)Google Scholar