Landolt-Börnstein - Group III Condensed Matter

10.8 Electrostatic Aharonov-Bohm effect


This chapter discusses electrostatic Aharonov–Bohm effect (AB) effect. An electric field may cause a phase shift in probability amplitudes, Δρj = (e/h) ∫V (t)dt, where V is the scalar potential an electron is subject to on its path and the integral is taken over the period of time the electron spends in contact with V. Resulting periodic oscillations in the transmission probability of the ring as a function of V are known as the electrostatic AB effect. A phase shift of the AB oscillations occurred when the gate voltage was changed from 0 to -300mV, which is illustrated in a figure, and the influence of larger variations of Vg on the AB effect is shown. As no periodic structure in the resistance as a function of Vgwas found, the phase shifts were attributed to a shift in the Feynman trajectories.

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10.8 Electrostatic Aharonov-Bohm effect
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Electronic Transport. Part 1: Quantum Point Contacts and Quantum Wires
10 Connected rings
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Landolt-Börnstein - Group III Condensed Matter
  • B. Kramer
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  • A. Fechner
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