“Whoa! It’s like Spotify but for academic articles.”

Instant Access to Thousands of Journals for just $40/month

Try 2 weeks free now

Enhanced dielectric responses in Mg-doped CaCu 3 Ti 4 O 12



We report the effects of the Mg doping on the dielectric properties of CaCu 3 Ti 4 O 12 CaCu 3 Ti 4 O 12 in the frequency range of 200 Hz–200 kHz and in the temperature range of 58–473 K. It is found that the incorporations of Mg 2+ Mg 2 + result in increases in the dielectric constant by 12%–20% and decreases in the dielectric loss by 41%–64% (with the minimum of 0.042 for CaCu 2.7 Mg 0.3 Ti 4 O 12 CaCu 2.7 Mg 0.3 Ti 4 O 12 ) at room temperature and at 1 kHz. The x-ray photoemission spectroscopy measurements reveal that the content of Cu 3+ Cu 3 + increases with the increasing concentration of Mg 2+ Mg 2 + . The enhanced dielectric response may be related to the influence of Cu 3+ Cu 3 + and/or Mg 2+ Mg 2 + . In other words, Mg 2+ Mg 2 + is an effective ion to optimize the dielectric properties of CaCu 3 Ti 4 O 12 CaCu 3 Ti 4 O 12 .



Journal of Applied PhysicsAmerican Institute of Physics

Published: Oct 1, 2008

Keywords: calcium compounds; copper compounds; dielectric losses; dielectric materials; doping; magnesium compounds; permittivity; X-ray photoelectron spectra

DOI: 10.1063/1.2989124

Free Preview of First Page

Loading next page...

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy unlimited access and
personalized recommendations from
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $40/month

Try 2 weeks free now

Explore the DeepDyve Library

How DeepDyve Works

Spend time researching, not time worrying you’re buying articles that might not be useful.

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from Springer, Elsevier, Nature, IEEE, Wiley-Blackwell and more.

All the latest content is available, no embargo periods.

See the journals in your area

Simple and Affordable Pricing

14-day free trial. Cancel anytime, with a 30-day money-back guarantee.

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Best Deal — 25% off

Annual Plan

  • All the features of the Professional Plan, but for 25% off!
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

billed annually