tag:blogger.com,1999:blog-5439168179960787195.post7898809743511368189..comments2024-03-28T17:13:01.117+10:00Comments on Condensed concepts: Motivations for learning the reciprocal latticeRoss H. McKenziehttp://www.blogger.com/profile/09950455939572097456noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5439168179960787195.post-76896748975617637482013-03-21T11:16:41.562+10:002013-03-21T11:16:41.562+10:00I also prefer Ashcroft and Mermin's approach. ...I also prefer Ashcroft and Mermin's approach. Starting out with crystals is abstract and, in my opinion, sets the tone in the wrong note. Babak Seradjehhttps://www.blogger.com/profile/10456003893344135660noreply@blogger.comtag:blogger.com,1999:blog-5439168179960787195.post-49050842596976738052013-03-20T10:43:33.151+10:002013-03-20T10:43:33.151+10:00I agree that this may not be that motivational for...I agree that this may not be that motivational for students.<br />Kittel does crystal structures, then phonons, then the Sommerfeld model, and then the Bloch model.<br /><br />But, I like and use the Ashcroft and Mermin sequence.<br />First, one does the Drude and Sommerfeld model and then motivates the need to take into account the crystal lattice (Bloch model). One then does crystal structures and the reciprocal lattice. This then leads into the Bloch model.Ross H. McKenziehttps://www.blogger.com/profile/09950455939572097456noreply@blogger.comtag:blogger.com,1999:blog-5439168179960787195.post-30651346323090295662013-03-19T01:07:37.967+10:002013-03-19T01:07:37.967+10:00I have trouble imagining the motivating part of t...I have trouble imagining the motivating part of this, since usually at this point in the development of the topics, electron waves within the crystal are still some ways off. That usually click in after Bloch's theorem, no?Babak Seradjehhttps://www.blogger.com/profile/10456003893344135660noreply@blogger.comtag:blogger.com,1999:blog-5439168179960787195.post-82858559964978062013-03-16T07:43:17.866+10:002013-03-16T07:43:17.866+10:00Is this how Sheldon works out the linear spectrum ...Is this how Sheldon works out the linear spectrum of graphene at half filling?<br /><br />How does filling factor fit in? Maybe I just need to think about it more.Tonyhttps://www.blogger.com/profile/08582644751812812675noreply@blogger.com