Dirac Cones in Two-Dimensional Artificial Crystals

来源 :第十二届国际凝聚态理论与计算材料学会议(The 12th International Conference on Con | 被引量 : 0次 | 上传用户：w5130293253

【摘要】

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　　We present a study on the existence of Dirac cones in two-dimensional phononic crystals made of rotable regular-hexagon or-triangle rods arranged in a hexag

【作者】

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Jiuyang Lu Chunyin Qiu Shengjun Xu Yangtao Ye Manzhu Ke Zhengyou Liu

【机构】

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KeyLaboratoryofArtificialMicro-andNano-structuresofMinistryofEducationandSchoolofPhysicsandTechnolog

【出处】

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第十二届国际凝聚态理论与计算材料学会议(The 12th International Conference on Con

【发表日期】

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2013年8期

【关键词】

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Dirac cones Phononic crystals Artificial crystals

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　　We present a study on the existence of Dirac cones in two-dimensional phononic crystals made of rotable regular-hexagon or-triangle rods arranged in a hexagonal lattice.The rotation of the building blocks allows the crystals of various symmetries.The numerical and experimental band structures state consistently that part of the symmetries can support Dirac cones stably,yet the others cannot.

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Dirac Cones in Two-Dimensional Artificial Crystals

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