麻烦解释一下一个物理名词

费米能级

物理意义，以及定义

你查一下原子物理这本书就可以得到详细而权威的解释了。

任何一本有关半导体的书籍都会讲解的。

在温度0 K，且一个原子不被授与能量时，最高层电子所在的能阶，就是费米能阶，而能量就是费米能量。

The Fermi Energy, which is synonymous with the electron chemical potential at T=0, represents the energy level that the next electron into the system must have, to be at the lowest possible freely-available state.

The Fermi level is the level at which the electron occupancy is 0.5 (or the highest filled level at 0 K).

The Fermi energy is the energy of the electrons in that level.

The highest energy level in the crystal that can remain populated by electrons at a temperature of Absolute Zero.