In fact, the seemingly anomalous dispersion of the impurity band in the first Brillouin zone is a result from band folding.
在第一布里渊区中出现的杂质带的反常色散实际上是能带折叠的结果。
Our results indicate that the energy valley of conduction band of Ge is not lying in the center of Brillouin zone and the constant energy surface possesses non-spherical symmetry.
这些结果表明锗导带能谷不在布里渊区中心，且具有非球形对称等能面。
While the proposed photonic-crystal does not exhibit complete band-gap across the entire Brillouin zone, a stable defect exists provided we carefully tune the structural parameters.
分析表明，虽然该光子晶体不具有完全光子带隙，但通过调整结构参数，仍可以得到稳定的缺陷模式。
It is proved that the volume of Brillouin zone and that of the reciprocal lattice primitive cell are equal for BCC lattice and FCC lattice in three dimensions by a simple mathematical method.
用简单数学方法就体心立方晶格和面心立方晶格证明了三维情况下布里渊区体积等于倒格子原胞体积。
It is proved that the volume of Brillouin zone and that of the reciprocal lattice primitive cell are equal for BCC lattice and FCC lattice in three dimensions by a simple mathematical method.
用简单数学方法就体心立方晶格和面心立方晶格证明了三维情况下布里渊区体积等于倒格子原胞体积。
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