
好词典

From Greek 'phonē' (sound) + -on (suffix indicating a quantum particle), coined by Russian physicist Igor Tamm in 1932.
❶ 声子是固体物理学中的概念,指晶格振动能量的量子化单位,类似于光子是光的量子化单位。
“Phonons play a crucial role in determining the thermal conductivity of materials.”
(声子在决定材料的热导率方面起着关键作用。)
“The interaction between electrons and phonons affects the electrical resistance of metals.”
(电子和声子之间的相互作用影响金属的电阻。)
phonon dispersion — 声子色散关系,描述声子能量与波矢之间的关系,用于分析晶体的振动特性。
“The phonon dispersion curves show how vibrational frequencies vary with wave vector in the crystal.”
(声子色散曲线展示了晶体中振动频率如何随波矢变化。)
phonon mode — 声子模式,指晶体中特定的振动方式,可分为声学支和光学支。
“The longitudinal optical phonon mode contributes significantly to the material's infrared absorption.”
(纵向光学声子模式对材料的红外吸收有重要贡献。)