题目
晶格常数为a的一维单原子链，第一布里渊区取值范围为A. (-(pi)/(2a), (pi)/(a)]B. (-(pi)/(a), (pi)/(2a)]C. (-(pi)/(a), (pi)/(a)]D. (-(pi)/(2a), (pi)/(2a)]
晶格常数为a的一维单原子链，第一布里渊区取值范围为
A. $(-\frac{\pi}{2a}, \frac{\pi}{a}]$
B. $(-\frac{\pi}{a}, \frac{\pi}{2a}]$
C. $(-\frac{\pi}{a}, \frac{\pi}{a}]$
D. $(-\frac{\pi}{2a}, \frac{\pi}{2a}]$
题目解答
答案
C. $(-\frac{\pi}{a}, \frac{\pi}{a}]$