Тип публикации: статья из журнала
Год издания: 2015
Идентификатор DOI: 10.1134/S0021364014210139
Аннотация: We consider electron transport in a zigzag quantum wire by the effect of finger gate potential. Using a non-Hermitian effective Hamiltonian, we calculate resonance positions and widths to show that the resonance widths are easily governed by the gate potential. In particular, the resonance width can be enforced to be equal to zero,Показать полностьюwhich leads to an electron localization with the Fermi energy embedded in the propagation band of the wire, i.e., the bound state in the continuum (BSC). We show that, for positive values of the potential, a zigzag wire becomes a Fabry-Perot resonator to give rise to BSC too.
Журнал: JETP LETTERS
Выпуск журнала: Vol. 100, Is. 9
Номера страниц: 585-590
ISSN журнала: 00213640
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER