Phys. Rev. B 53, 9583–9586 (1996)Phase rigidity and h/2e oscillations in a single-ring Aharonov-Bohm experimentReceived 24 January 1996; published in the issue dated 15 April 1996 We address the results presented recently by Yacoby et al. [Phys. Rev. Lett. 74, 4047 (1995)] on the coherency and phase evolution in a resonant tunneling quantum dot embedded in an Aharonov-Bohm (AB) ring. The observed phase rigidity of the AB conductance oscillations is theoretically explained by invoking simple symmetry arguments applicable to two terminal measurements, and is corroborated experimentally in generic experiments. We show that under certain conditions h/2e oscillations dominate completely the conductance of a single AB ring. © 1996 The American Physical Society. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.53.9583
DOI:
10.1103/PhysRevB.53.9583
PACS:
73.20.Dx, 71.45.-d, 72.80.Ey, 73.40.Gk
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.