corner
corner
APS » Journals » Phys. Rev. B » Volume 66 » Issue 5
< Previous Article | Next Article >

Phys. Rev. B 66, 052302 (2002) [3 pages]

Elastic band gaps in a fcc lattice of mercury spheres in aluminum

Download: PDF (261 kB) Buy this article Export: BibTeX or EndNote (RIS)

I. E. Psarobas*
Department of Physics, National Technical University of Athens, Zografou Campus, GR-157 80 Athens, Greece

M. M. Sigalas
Communication and Optics Lab, Agilent Labs, Agilent Technologies, 3500 Deer Creek Road, MS26M9, Palo Alto, California 94304

Received 17 April 2002; published 29 August 2002

Elastic waves propagating in a periodic system consisting of mercury spheres arranged in a fcc lattice and surrounded by aluminum have been studied using the layer-multiple-scattering method. The band structure shows wide elastic band gaps along certain high-symmetry directions. For filling ratios of mercury spheres around 8.2%, there is a narrow full band gap with maximum width of the gap over mid-gap frequency of 2.5%. The full band gap can be further enhanced by using a heterostructure containing seven slabs of different sizes of mercury spheres and can be as wide as 14.4%.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.66.052302
DOI:
10.1103/PhysRevB.66.052302
PACS:
43.20.+g, 43.40.+s, 46.40.-f

*Also at Section of Solid State Physics, University of Athens, Panepistimioupolis GR-157 84, Athens, Greece.

 
< Previous Article | Next Article >