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Phase of Aharonov-Bohm oscillations : effect of channel mixing and fano resonances
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| Abstract |
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| We show that in a ring with a gated arm, for the Aharonov-Bohm oscillations, there is a certain energy scale, which coincides with the interchannel separation, in which the phase of wave-function in the gated arm can abruptly change by pi. For a ring with a quantum dot in one arm, the same mechanism can produce a phase slip of pi between two consecutive resonances of the dot. (C) 1998 Elsevier Science Ltd. All rights reserved. | | |
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English
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Solid state communications. - New York, N.Y. | |
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New York, N.Y. : 1998
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0038-1098
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107:2(1998), p. 69-73
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000073980100006
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