tag:blogger.com,1999:blog-5439168179960787195.post5607328833643442112..comments2024-03-28T17:13:01.117+10:00Comments on Condensed concepts: Deconstructing Fermi liquid scatteringRoss H. McKenziehttp://www.blogger.com/profile/09950455939572097456noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5439168179960787195.post-68798946120778647852014-03-27T10:55:04.734+10:002014-03-27T10:55:04.734+10:00Update.
A 2013 theory paper
http://journals.aps....Update.<br /><br />A 2013 theory paper<br /><br />http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.115109<br /><br />shows that b=4.<br /><br />A 2014 preprint presents an analysis of optical conductivity measurements on Sr2RuO4 that are consistent with b=4<br /><br />http://arxiv.org/abs/1403.5445Ross H. McKenziehttps://www.blogger.com/profile/09950455939572097456noreply@blogger.comtag:blogger.com,1999:blog-5439168179960787195.post-1251295334589128842011-08-06T03:08:33.414+10:002011-08-06T03:08:33.414+10:00Not all experimentalists are aware of the fact tha...Not all experimentalists are aware of the fact that Fermi liquid theory predicts b=1 for quasiparticle scattering but b=4 for the conductivity which is a two particle process. So there is some confusion in the literature.<br /><br />My second point is that in Dressel's review several examples are given where b differs dramatically from 4. At least one of those compares the two terms, the temperature one and the frequency one, in very different energy regions. The data we quote generally makes the comparison where kT is of the order of hv. Our data meet that condition.<br /><br />My final point is that we are still looking for a system where b=4 behaviour can be observed. <br /><br />Tom TimuskTom Timuskhttps://www.blogger.com/profile/17782989893702602168noreply@blogger.com