In other words if you say, how many vibrations are there in the lattice, well if there are N atoms, each atom in the gas phase would have three degrees of freedom.
换句话说，你会问经各种有多少振动，如果有N个原子，气相中的每个原子有,3个自由度。
Phase transitions and critical phenomena have been clarified for an XY model on the triangular lattice of ultra thin magnetic films.
采用经典XY模型，阐明了三角格子上层状超薄膜磁性材料的相变和临界现象。
The observations of lattice vibrations are mainly on the ferroelectric phase.
晶格振动的观察主要集中在铁电相。
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