Electrochemical potential variations in mesoscopic systems

✍ Scribed by P.L. Pernas; F. Flores

• Book ID: 103936630
• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 301 KB
• Volume: 175
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(91)90716-r

✦ Synopsis

By means of the Keldysh-Green function method, the electrochemical potential variations along a one-dimensional chain are analysed. The chain is joined to two reservoirs simulated by Bethe lattices. In our calculation we introduce Hartree-consistency between the potentials and the charges induced along the chain. Ideal chains and the cases of chains with one and two barriers are treated. Our results show the different quantum coherence effects between the contacts and the one-dimensional chain as a function of the Fermi energy, the barrier heights and the chain length. The double barrier case is discussed from the point of view of the heterostructure bistability.