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Ferroelectrics Volume 378, 2009 - Issue 1
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Original Articles

Stoichiometric Study of the Dielectric and Magnetic Properties in Charge Frustrated System LuFe2O4

Takamasa Michiuchi Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Yusuke Yokota Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Takuma Komatsu Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Hironori Hayakawa Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Tomoko Kuroda Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Daisuke Maeda Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Yoji Matsuo Dept. Material Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
,
Shigeo Mori Dept. Material Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
,
Kenji Yoshii Synchrotron Radiation Research Center, SPring-8, Japan Atomic Energy Agency, 679-5148, Japan
,
Noriaki Hanasaki Department of Physics, Okayama University, Okayama, 700-8530, Japan
,
Takashi Kambe Department of Physics, Okayama University, Okayama, 700-8530, Japan
&
Naoshi Ikeda Department of Physics, Okayama University, Okayama, 700-8530, Japan
 show all
Pages 175-180 | Received 15 Jun 2008, Accepted 20 Nov 2008, Published online: 20 Sep 2010
 
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Abstract

We report dielectric and magnetic properties of a single crystal of LuFe 2 O 4 with different degrees of oxygen deficiency. The oxygen stoichiometry was monitored with the gas mixture ratio of CO 2 and CO during the crystal growing process. A sample having high resistivity of about 10 kΩ cm sample was found at room temperature. The relation between the control of the charge frustration and the completeness of the charge ordering is discussed.

Acknowledgment

This work was partially supported by grant from New Energy and Industrial Technology Development Organization.

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