Kapitel 6: Kristalldynamik Flashcards

1
Q

dispersionsrelationen

A

“omega”(k)= 2(K/M)^(1/2) * sin(a/2 *k))

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2
Q

Första brillouin-zonen, krav

A

-pi/a

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3
Q

grupphastigheten, v_g

A

v_g = d”omega”/dk

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4
Q

normala moder

A

okopplade oskillationer

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5
Q

rörelseekvationer för vibrationer i ett gitter

A

kombinera hookes lag och newtons II

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