| 三维声子晶体带隙与散射体取向的关系 |
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| 引用本文： | 颜琳,赵鹤平,王小云,李德俊,邬云雯.三维声子晶体带隙与散射体取向的关系[J].吉首大学学报(自然科学版),2006,27(2):61-63. |
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| 作者姓名： | 颜琳 赵鹤平 王小云 李德俊 邬云雯 |
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| 作者单位： | （吉首大学物理科学与信息工程学院，湖南 吉首 416000） |
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| 基金项目： | 浙江省湖州市自然科学基金 |
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| 摘 要： | 研究了散射体的取向对二组元三维声子晶体带结构的影响.应用平面波展开法计算了3种结构的三维声子晶体的带结构，结果表明：通过改变散射体的取向可以调节带隙大小，对于简立方和面心立方结构的声子晶体，最低带隙宽度随着散射体的旋转角的增加而减小，而对体心立方结构的声子晶体，最低带隙宽度随着散射体旋转角的增加而增加.
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| 关 键 词： | 声子晶体 带隙 平面波展开法 旋转角 |
| 文章编号： | 1007-2985（2006）02-0061-03 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2005-12-20 |
The Relation Between Scatterer's Tropism and Band Gaps of 3D Phononic Crystal |
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| YAN Lin,ZHAO He-ping,WANG Xiao-yun,LI De-jun,WU Yun-wen.The Relation Between Scatterer''''s Tropism and Band Gaps of 3D Phononic Crystal[J].Journal of Jishou University(Natural Science Edition),2006,27(2):61-63. |
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| Authors: | YAN Lin ZHAO He-ping WANG Xiao-yun LI De-jun WU Yun-wen |
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| Institution: | （College of Physics Science and Electronic Engineering,Jishou University,Jishou 416000,Hunan China） |
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| Abstract: | This paper investigates the influence of scatterer's tropism on band gaps of 3D phononic crystal.By using the plane wave expansion method,the authors calculated the band structure of 3D phononic crystals with the three structures.The results show that the band gaps can be adjusted by changing the scatterer's tropism.For Simple-Cubic(SC) and Face-Centered-Cubic(FCC) structure the lowest band gap width becomes narrower,while for Body-Centered-Cubic(BCC) structure the lowest band gap width becomes wider as the rotation angle of the scatters increases. |
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| Keywords: | phononic crystal band gap plane wave expansion method rotation angle |
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