Title

第16講 reciprocal lattice +Bragg’s law+ Ewald sphere

Video

L16C

Syllabus

章節大綱

 

L16_A
         reciprocal lattice
        (1).interplane spacing for cubic system and
             hexagonal system
        (2). angle between planes

L16_B
        1.the relationship between reciprocal lattice and
           real lattice in cubic system
           (a) simple cubic
           (b) Face center cubic
        2. Bragg’s law:  2dsinθ=nλ
        3. Ewarld sphere construction
           (S is the vector of the reciprocal lattice)

L16_C
          Ewarld Sphere
         (a)光學和電子性質以及晶體結構 
         (b)兩手策略:左手拿ewarld sphere 右手拿crystal
         (c)利用ewarld sphere 找出繞射點