Phys. Rev. Lett. 82, 2564–2567 (1999)Self-Gating Effect in the Electron Y-Branch SwitchReceived 9 September 1998; published in the issue dated 22 March 1999 In an electron waveguide Y-branch switch the electrostatic field applied between two gates switches a current into either of two branches. A novel mode of operation is proposed. For finite source-drain potentials, the switching field is shown to be strongly influenced by the electrochemical potentials in the waveguides. For certain biasing schemes this can be used to achieve gain without external gates and their RC constants. This allows switching up into the THz range in this new class of gateless mesoscopic devices. Conditions for bistability and oscillation are derived. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.2564
DOI:
10.1103/PhysRevLett.82.2564
PACS:
73.50.Mx, 72.15.-v
|
|
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.