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Physical nature of critical wave functions in Fibonacci systems

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Maciá Barber, Enrique Alfonso y Domínguez-Adame Acosta, Francisco (1996) Physical nature of critical wave functions in Fibonacci systems. Physical Review Letters, 76 (16). pp. 2957-2960. ISSN 0031-9007

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URL Oficial: http://dx.doi.org/10.1103/PhysRevLett.76.2957


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Resumen

We report on a new class of critical states in the energy spectrum of general Fibonacci systems. By introducing a transfer matrix renormalization technique, we prove that the charge distribution of these states spreads over the whole system, showing transport properties characteristic of electronic extended states. Our analytical method is a first step to find out the link between the spatial structure of critical wave functions and their related transport properties.


Tipo de documento:Artículo
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© 1996 The American Physical Society.
We are greatly indebted to Roland Ketzmerick for very useful discussions and detailed calculations as well as for his good manners in science. It is with great
pleasure that we thank Angel Sánchez for illuminating conversations. We also thank Victoria Hernández for interesting comments. This work is supported by CICYT under Project No. MAT95-0325.

Palabras clave:Extended electronic states, Spectral properties, Renormalization-group, Quasi-crystals, Cantor-set, Lattices, Chain, Superlattice, Model
Materias:Ciencias > Física > Física de materiales
Código ID:28078
Depositado:29 Ene 2015 09:53
Última Modificación:29 Ene 2015 09:53

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