Timeline for Why is the first Brillouin zone size of a body center cubic is 4π/a?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Apr 1 at 18:39 | comment | added | Jon Custer | The "conventional" cubic unit cell with an atom in the center contains 2 atoms (the one in the center and 1/8th of each of the 8 corners). That is not a primitive unit cell which for bcc holds only 1 atom. | |
| Apr 1 at 18:23 | comment | added | march | I assume that $a$ is the length of the side of the standard cubic cell? If so, then note that the primitive unit cell of the bcc lattice is significantly smaller than the standard cubic cell in which it sits, making the points in reciprocal space farther apart for bcc compared to the reciprocal lattice of the sc lattice. This likely explains why the points at the edges of the bcc BZ boundary seem like they're too far apart. I haven't sat down and computed the exact values yet though. | |
| Apr 1 at 18:23 | answer | added | Dr. Nate | timeline score: 0 | |
| Apr 1 at 17:43 | history | asked | physstudent11 | CC BY-SA 4.0 |