Periodic Conductance Oscillations and Geometrical Commensurability in an Open Ballistic Square (<Special Issue> Quantum Dot Structures)

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概要

• 論文の詳細を見る

• We report experimental and numerical studies of the magnetotransport in a four-probe square quantum dot. Low-field magnetoresistance is dominated by the classical ballistic electron trajectories traversing the dot. Scanning the Fermi energy we find periodic conductance oscillations superimposed on these classical effects. Theory shows that, at the given Fermi energy, transport through the dot is effectively mediated by just a few eigenstates of the corresponding isolated square. This holds even in the case of many propagating modes in the leads. The geometry of the injecting leads plays a decisive role in the selection of a particular set of eigenstates of the square. This defines a specific period of oscillations observed in the experiment.

• 社団法人応用物理学会の論文
• 1997-06-30

著者

• Ensslin Klaus

  Festorperphysik Eth Zurich And Psi:sektion Physik Lmu Munchen Geschwister-scholl-platz 1

• Berggren Karl-fredrik

  Department Of Physics And Measurement Technology Linkoping University

• Schuster Ralf

  Braun Center For Submicron Research Weizmann Institute Of Science:sektion Physik Lmu Munchen Geschwi

• ZOZOULENKO Igor

  Department of Physics and Measurement Technology, Linkoping University

• Zozoulenko Igor

  Department Of Physics And Measurement Technology Linkoping University

関連論文

• Periodic Conductance Oscillations and Geometrical Commensurability in an Open Ballistic Square ( Quantum Dot Structures)

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