固体物理是材料物理与化学专业研究生基础课、必修课. 它主要是研究固体的结构及组成粒子之间的相互作用与运动规律的学科，阐明固体的性能和用途，尤其以固态电子论和固体的能带理论为主要内容，是物理学中内容极丰富、应用极广泛的分支学科.

Solid State Physics is one strong branch course of physics for its abundant contents and wide application. It is a basic or compulsory course of  Materials Physics and Chemistry. The subject focuses on the relationship between the solid microstructure and particles and the law of their motion. The subject illustrates the solid properties and application, especially solid state theory and band theory.