Diffraction Lecture 15: Reciprocal Space

In this lecture we examine the relationship between the real space lattice that defines a crystal structure and its reciprocal space lattice. We then see the connection between the reciprocal space lattice and points of constructive interference that give rise to the diffraction pattern of the crystal.

[@bogdanorlioglo6126]

Dear Professor Woodward, there's a typo on the 'Hexagonal Lattice' slide, b* should be perpendicular to a, not to b. Thank you for the videos, they are very helpful!

[@patsperovskites4733]

Ok, thanks for pointing that out.

[@Melisaakcm]

Hi Prof., in hexagonal reciprocal lattice space why b* is perpendicular to b, and a* to a, but in orthagonal systems b* is parallel to b and vice versa?

[@ΚωνσταντίνοςΛαζαρίδης-ξ9ι]

Thank you sir! Well expained.

is there a wrong about position of the a* and b* in 11:07?

[@shaulstein3749]

Yes. a star is switched with b star

[@Jason-sq7cc]

Hi Professor, in lecture 14, you said in 3d the condition of diffraction on the detector looks like circles. Could you elaborate on why it is true? And why does that coincide with the fact that the diffraction peaks are located on the reciprocal lattice? Thank you!

[@JK-kh1co]

Dear Professor,
I have a simple question:
Kroneker's delta is defined based on the cubic lattice?

[@kaushikumarihami1982]

excellent explanation

[@qqokhann]

What is the value of 'V' ?

[@ThangPVan_]

thanks, sir