By Topic

Itinerant to localized electron transition in ferromagnetic (Ca, Sr)1-xNaxRuO3

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Alexander, C.S. ; National High Magnetic Field Laboratory and Physics Department, Florida State University, Tallahassee, Florida 32306 ; Cao, G. ; McCall, S. ; Crow, J.E.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.370228 

SrRuO3 is an itinerant ferromagnet with TC=165 K and CaRuO3 is a metallic paramagnet down to at least 30 mK. These materials are known to be narrow d-band metals, the physical properties of which are highly sensitive to small perturbations such as chemical doping. In this article, we report results of resistivity, specific heat, and magnetic susceptibility measurements on Na doped SrRuO3 and CaRuO3. Resistivity measurements show a change from metallic to nonmetallic behavior for Na concentration of 12% with the ferromagnetic ordering temperature depressed in Sr1-xNaxRuO3. The nonmetallic behavior in the x=0.12 sample is supported by specific heat measurements which are suggestive of a partial opening of an energy gap and brings into question the role of itineracy in the magnetic ground state. Ca1-xNaxRuO3, with x=0.00, 0.05, and 0.09, remains metallic and shows no evidence of long range magnetic order for all x. © 1999 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:85 ,  Issue: 8 )