Theoretical investigation of TbNi_{5-x}Cu_x optical properties

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, 3 figures

Scientific paper

In this paper we present theoretical investigation of optical conductivity for intermetallic TbNi_{5-x}Cu_x series. In the frame of LSDA+U calculations electronic structure for x=0,1,2 and on top of that optical conductivities were calculated. Disorder effects of Ni for Cu substitution on a level of LSDA+U densities of states (DOS) were taken into account via averaging over all possible Cu ion positions for given doping level x. Gradual suppression and loosing of structure of optical conductivity at 2 eV together with simultaneous intensity growth at 4 eV correspond to increase of Cu and decrease of Ni content. As reported before [Knyazev et al., Optics and Spectroscopy 104, 360 (2008)] plasma frequency has non monotonic doping behaviour with maximum at x=1. This behaviour is explained as competition between lowering of total density of states on the Fermi level N(E_F) and growing of number of carriers. Our theoretical results agree well with variety of recent experiments.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Theoretical investigation of TbNi_{5-x}Cu_x optical properties does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Theoretical investigation of TbNi_{5-x}Cu_x optical properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical investigation of TbNi_{5-x}Cu_x optical properties will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-427638

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.