Science-advisor
REGISTER info/FAQ
Login
username
password
     
forgot password?
register here
 
Research articles
  search articles
  reviews guidelines
  reviews
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
 
 
Stat
Members: 3643
Articles: 2'487'895
Articles rated: 2609

28 March 2024
 
  » arxiv » cond-mat/0108226

 Article overview


Electronic structure of the pyrochlore metals Cd2Os2O7 and Cd2Re2O7
D.J. Singh ; P. Blaha ; K. Schwarz ; J.O. Sofo ;
Date 14 Aug 2001
Subject cond-mat
AbstractFirst principles density functional calculations within the local spin density approximation (LSDA) and the generalized gradient approximation (GGA) are reported for pyrochlore Cd$_2$Os$_2$O$_7$ and Cd$_{2}$Re$_{2}$O$_7$. The transition metal $t_{2g}$ manifolds are found to be well separated in energy from the O $2p$ bands and from the higher lying $e_g$ and Cd derived bands. The active electronic structure in the $t_{2g}$ manifold near the Fermi energy, $E_F$ is found to be significantly modified by spin orbit interactions, which we include. Both materials show semi-metallic band structures, in which the $E_F$ lies in an pseudogap. The band structure of Cd$_2$Os$_2$O$_7$ near $E_F$ is dominated by very heavy hole and electron bands, though at $E_F$ the electron sections are lighter. Cd$_{2}$Re$_{2}$O$_7$ has heavy hole bands but moderate mass electron states. The results are discussed in terms of measured transport and thermodynamic properties of these compounds as well as the very different ground states of these two materials.
Source arXiv, cond-mat/0108226
Services Forum | Review | PDF | Favorites   
 
Visitor rating: did you like this article? no 1   2   3   4   5   yes

No review found.
 Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

  Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser claudebot






ScienXe.org
» my Online CV
» Free


News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2024 - Scimetrica