The diagram of Fig. 12.22 shows a plan view of a structure of cubic ZnS (zincblende) looking down the z axis. The numbers attached to some atoms represent the heights of the atoms above the z = 0 plane expressed as a fraction of the cube edge a. Unlabeled atoms are at z = 0 and z = a. (a) What is the Bravais lattice type? (b) Describe the basis. (c) Given that a = 0.541 nm, calculate the nearest- neighbor Zn-Zn, Zn-S, and S-S distances. Zn= S =

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The diagram of Fig. 12.22 shows a plan view of a
structure of cubic ZnS (zincblende) looking down
the z axis. The numbers attached to some atoms
represent the heights of the atoms above the z =
plane expressed as a fraction of the cube edge a.
Unlabeled atoms are at z = 0 and z = a.
(a) What is the Bravais lattice type?
(b) Describe the basis.
(c) Given that a = 0.541 nm, calculate the nearest-
neighbor Zn-Zn, Zn–S, and S-S distances.
3
a
1
а
Zn=
S =
54
Transcribed Image Text:The diagram of Fig. 12.22 shows a plan view of a structure of cubic ZnS (zincblende) looking down the z axis. The numbers attached to some atoms represent the heights of the atoms above the z = plane expressed as a fraction of the cube edge a. Unlabeled atoms are at z = 0 and z = a. (a) What is the Bravais lattice type? (b) Describe the basis. (c) Given that a = 0.541 nm, calculate the nearest- neighbor Zn-Zn, Zn–S, and S-S distances. 3 a 1 а Zn= S = 54
The diagram of Fig. 12.22 shows a plan view of a
structure of cubic ZnS (zincblende) looking down
the z axis. The numbers attached to some atoms
represent the heights of the atoms above the z = 0
plane expressed as a fraction of the cube edge a.
Unlabeled atoms are at z = 0 and z = a.
(a) What is the Bravais lattice type?
(b) Describe the basis.
(c) Given that a =
neighbor Zn-Zn, Zn–S, and S-S distances.
0.541 nm, calculate the nearest-
a
3
a
S = O
Zn=
%3D
1/2
Transcribed Image Text:The diagram of Fig. 12.22 shows a plan view of a structure of cubic ZnS (zincblende) looking down the z axis. The numbers attached to some atoms represent the heights of the atoms above the z = 0 plane expressed as a fraction of the cube edge a. Unlabeled atoms are at z = 0 and z = a. (a) What is the Bravais lattice type? (b) Describe the basis. (c) Given that a = neighbor Zn-Zn, Zn–S, and S-S distances. 0.541 nm, calculate the nearest- a 3 a S = O Zn= %3D 1/2
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