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Semiconductor NanostructuresQuantum states and electronic transport$
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Thomas Ihn

Print publication date: 2009

Print ISBN-13: 9780199534425

Published to Oxford Scholarship Online: February 2010

DOI: 10.1093/acprof:oso/9780199534425.001.0001

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Interference effects in nanostructures I

Interference effects in nanostructures I

(p.225) 14 Interference effects in nanostructures I
Semiconductor Nanostructures

Thomas Ihn

Oxford University Press

The interference of electron waves in nanostructures adds clear fingerprints of quantum mechanical behavior to electronic transport in semiconductor nanostructures. This chapter discusses the Aharonov–Bohm effect as one of the most fundamental interference effects. It introduces the notion of the Aharonov–Bohm phase, and contrasts Aharonov–Bohm oscillations with Altshuler–Aronov–Spivak oscillations. Geometric phase effects are discussed based on Berry's phase, the Aharonov–Casher phase, and spin-orbit related phase effects. Later, fundamental aspects of decoherence are introduced. The chapter concludes with a discussion of conductance fluctuations in ballistic and diffusive mesoscopic samples.

Keywords:   interference effects, Aharonov–Bohm effect, Berry's phase, Aharonov–Casher phase, spin-orbit interaction, Altshuler–Aronov–Spivak oscillations, decoherence

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