info/FAQ

Research articles

My Pages

Stat

Members: 3645
Articles: 2'504'928
Articles rated: 2609

25 April 2024

» arxiv » cond-mat/0606518

Article overview

X-ray absorption spectroscopy on layered cobaltates Na_xCoO_2
T. Kroll ; M. Knupfer ; J. Geck ; C. Hess ; T. Schwieger ; G. Krabbes ; C. Sekar ; D.R. Batchelor ; H. Berger ; B. Buechner ;
Date:	20 Jun 2006
Subject:	Strongly Correlated Electrons
Abstract:	Measurements of polarization and temperature dependent soft x-ray absorption have been performed on Na_xCoO_2 single crystals with x=0.4 and x=0.6. They show a deviation of the local trigonal symmetry of the CoO_6 octahedra, which is temperature independent in a temperature range between 25 K and 372 K. This deviation was found to be different for Co^{3+} and Co^{4+} sites. With the help of a cluster calculation we are able to interpret the Co L_{23}-edge absorption spectrum and find a doping dependent energy splitting between the t_{2g} and the e_g levels (10Dq) in Na_xCoO_2.
Source:	arXiv, cond-mat/0606518
Services:	Forum \| Review \| PDF \| Favorites

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.

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap