事与愿违
发表于 2025-3-27 01:02:16
ack even further. The phonons appear as the elementary excitations of the lattice, and each one is characterized by its wave vector, frequency, and polarization direction. In the simplest case, where we have only one atom per unit lattice cell, there are for each wave vector three different phonons,
木讷
发表于 2025-3-27 02:02:41
http://reply.papertrans.cn/67/6668/666701/666701_32.png
善于
发表于 2025-3-27 06:24:33
http://reply.papertrans.cn/67/6668/666701/666701_33.png
设施
发表于 2025-3-27 12:28:30
http://reply.papertrans.cn/67/6668/666701/666701_34.png
傲慢物
发表于 2025-3-27 17:34:56
http://reply.papertrans.cn/67/6668/666701/666701_35.png
stress-response
发表于 2025-3-27 20:16:52
a means of studying the fundamental weak interaction. In particular considerable work has been done both theoretically and experimentally to check the “universal fermi interaction” hypothesis, and to determine the pseudoscalar coupling constant which becomes important in the μ-capture due to a large