tag:blogger.com,1999:blog-13869903.post1494800065866673795..comments2024-03-28T04:15:44.459-05:00Comments on nanoscale views: Controversies/hot topics in condensed matter, revisitedDouglas Natelsonhttp://www.blogger.com/profile/13340091255404229559noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-13869903.post-29991859344242410662012-09-20T13:41:44.370-05:002012-09-20T13:41:44.370-05:00Hey Doug, now that you've written my next prop...Hey Doug, now that you've written my next proposal for me :) I suppose the next order of business is to begin handicapping the next Nobel winner.DanMnoreply@blogger.comtag:blogger.com,1999:blog-13869903.post-59864269456444149832012-09-20T10:43:26.108-05:002012-09-20T10:43:26.108-05:00@Doug: good point on the temperature (didn't k...@Doug: good point on the temperature (didn't know).<br /><br />Still, if Mermin-Wagner is correct, the conclusion would be the systems are not 2D...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13869903.post-91936661107699878562012-09-20T06:58:10.103-05:002012-09-20T06:58:10.103-05:00Anon@8:06, I don't think the phonons are reall...Anon@8:06, I don't think the phonons are really relevant to the 2d MIT work I'm talking about. The experiments are done below 1 K, so phonons are largely frozen out.<br /><br />Anon@9:48 - thanks, fixed.<br /><br />Anon@6:31 - I do plan to make an update (see the end of my first paragraph). Thanks!Douglas Natelsonhttps://www.blogger.com/profile/13340091255404229559noreply@blogger.comtag:blogger.com,1999:blog-13869903.post-11558340953834062842012-09-20T06:31:53.235-05:002012-09-20T06:31:53.235-05:00Nice summary indeed! My question is: do all these ...Nice summary indeed! My question is: do all these topics from six years ago still bear the same relevance they had back then? Perhaps your list deserves an update or the inclusion of new points?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13869903.post-10704736003812628232012-09-19T21:48:09.248-05:002012-09-19T21:48:09.248-05:00Thanks for this post. Your blog is cool. Also, the...Thanks for this post. Your blog is cool. Also, the link to the post that was 6 years ago just points to this post again.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13869903.post-62969693724822048882012-09-19T20:06:25.198-05:002012-09-19T20:06:25.198-05:00On 2D MIT: I think we don't have real 2D syste...On 2D MIT: I think we don't have real 2D systems. They're always embedded in 3D systems, so at least the phonon dimensionality is 3. See also the 2D and even 1D "phase transition" (if that is at all the correct terminology) at surfaces of metal decorated simple semiconductors as Si. Some of the 1D systems really are 1D in that the Fermi surface does not show measurable dispersion in the perpendicular direction.<br /><br />1D systems spin/charge separation: there was a Nature Physics (Materials) paper by Schaefer (with a News/Views description by Weitering) showing pretty well characterized Luttinger liquid behavior both as a function of T and V.<br /><br />As you can see, I'm obviously a surface physicist...<br />In my opinion, old "boring" surface science finally reaches a point where "physics" issues can be addressed other than figuring out the structure of surfaces.Anonymousnoreply@blogger.com