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物理学报. 2010, 59(2): 754-758.
doi: 10.7498/aps.59.754.
二维复式声子晶体中基元配置对声学能带结构的影响
- 收稿日期: 2009-04-09
- 修回日期: 2009-05-19
- 刊出日期: 2010-01-05
English Abstract
Effect of basis configuration on acoustic band structure in two-dimensional complex phononic crystals
- Received Date:
09 April 2009
- Accepted Date:
19 May 2009
- Published Online:
05 January 2010
Abstract: The effect of basis configuration on acoustic band structure in two-dimensional complex phononic crystals （PCs） was investigated. We found that when the basis configuration was changed, the irreducible Brillouin zone （BZ） of PCs might be changed too，and part of band extrema were no longer on the high-symmetry lines. In particular，the PCs with some basis configurations were forced to render the whole first BZ irreducible. Therefore，besides the high symmetrical PCs，only by throughout investigation of the BZ can we obtain the authentic band structures and band gaps for the lower symmetrical PCs with complex crystal lattice.
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