Mesoscopic Phenomena in Microstructures of IV-VI Epilayers
G. Grabecki, T. Dietl, W. Plesiewicz, A. Lenard, T. Skośkiewicz
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

E. Kamińska, A. Piotrowska, E. Papis
Institute of Electron Technology, Al. Lotników 32/46, 02-668 Warszawa, Poland

N. Frank and G. Bauer
Institute für Halbleiterphysik, Johannes Kepler Universität Linz, 4040 Linz, Austria
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Magnetoresistance measurements of photolithographically patterned PbSe and Pb-{1-y}MnxSe microstructures were performed. Reproducible mag­netoconductance fluctuations with the amplitude increasing with decreasing temperature were observed. Unexpectedly, these fluctuations contain a com­ponent periodic in the magnetic field, and their magnitude is greater than that expected from the current theory of the universal conductance fluctua­tions. Possible explanations are discussed.
DOI: 10.12693/APhysPolA.87.551
PACS numbers: 71.55.Jv