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Magnetic Quantum Oscillations from Surface States of Bi Nanowires

Published online by Cambridge University Press:  07 July 2011

L. A. Konopko ,
T. E. Huber  and
A. A. Nikolaeva
L. A. Konopko
Affiliation:
Institute of Electronic Engineering and Nanotechnologies, Academy of Sciences of Moldova, Chisinau, MD-2028, Moldova. International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw 53-421, Poland.
T. E. Huber
Affiliation:
Howard University, 500 College St. N.W., Washington, DC 20059, U.S.A.
A. A. Nikolaeva
Affiliation:
Institute of Electronic Engineering and Nanotechnologies, Academy of Sciences of Moldova, Chisinau, MD-2028, Moldova. International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw 53-421, Poland.
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Abstract

In this work, we report the results of studies of the transverse magnetoresistance (MR) of single-crystal Bi nanowires with diameter d<80 nm. The single-crystal nanowire samples were prepared by the Taylor-Ulitovsky technique. Due to the semimetal-to-semiconductor transformation and high density of surface states with strong spin-orbit interactions, the charge carriers are confined to the conducting tube made of surface states. The non monotonic changes of transverse MR that are equidistant in a direct magnetic field were observed at low temperatures in a wide range of magnetic fields up to 14 T. The period of oscillations depends on the wire diameter d as for the case of longitudinal MR. An interpretation of transverse MR oscillations is presented.

Keywords

Binanoscalemagnetoresistance (transport)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1350: Symposium EE – Semiconductor Nanowires—From Fundamentals to Applications , 2011 , mrss11-1350-ee06-32
Copyright
Copyright © Materials Research Society 2011

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References

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