Continuum bound states as surface states of a finite periodic system

All of RECERCAT

To access the full text documents, please follow this link: http://hdl.handle.net/2445/10527

Title:	Continuum bound states as surface states of a finite periodic system
Author:	Sprung, Donald W. L.; Jagiello, P.; Sigetich, J. D.; Martorell Domenech, Juan
Other authors:	Universitat de Barcelona
Abstract:	We discuss the relation between continuum bound states (CBSs) localized on a defect, and surface states of a finite periodic system. We model an experiment of Capasso et al. [F. Capasso, C. Sirtori, J. Faist, D. L. Sivco, S-N. G. Chu, and A. Y. Cho, Nature (London) 358, 565 (1992)] using the transfer-matrix method. We compute the rate for intrasubband transitions from the ground state to the CBS and derive a sum rule. Finally we show how to improve the confinement of a CBS while keeping the energy fixed.
Subject(s):	-Semiconductors -Equacions d'ones -Teoria quàntica -Semiconductors -Wave equation -Quantum theory
Rights:	(c) The American Physical Society, 2003
Document type:	Article Article - Published version
Published by:	The American Physical Society
Share: