Zincblende lattice – views
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Transcript of Zincblende lattice – views
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Zincblende lattice – views
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(100) (111)
(110)
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Zincblende lattice – stacking sequence
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1st plane = A
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Zincblende lattice – stacking sequence
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1st plane = A2nd plane = B
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Zincblende lattice – stacking sequence
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1st plane = A2nd plane = B3rd plane = C
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Zincblende lattice – stacking sequence
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1st plane = A2nd plane = B3rd plane = C4th plane = A…
ABC
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Zincblende lattice – cleavage planes
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for (111) plane: 1 bond/atom for (110) plane: 1 bond/atom
for (100) plane: 2 bonds/atom
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
Wurzite/Zincblende – Polytypes
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SiC shows many (more than 200 known) crystal structures in mixed Wurzite (ABCABC…) and Zincblende (ABAB…)Configurations.
The largest unit cell has 254 layers.
“eclipsed”(hexagonal)
“staggered”(cub ic)
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Halbleiterphysik – Übung 2 Kristallstrukturen/MBE
MBE - Vacuum
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