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

• Published in: Ferroelectrics Vol. 378; no. 1; pp. 175 - 180
• Main Authors: Michiuchi, Takamasa, Yokota, Yusuke, Komatsu, Takuma, Hayakawa, Hironori, Kuroda, Tomoko, Maeda, Daisuke, Matsuo, Yoji, Mori, Shigeo, Yoshii, Kenji, Hanasaki, Noriaki, Kambe, Takashi, Ikeda, Naoshi
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Colchester Taylor & Francis Group 01.01.2009; Taylor & Francis; Taylor & Francis Ltd
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Crystallography; Dielectric properties; Dielectric properties of solids and liquids; Dielectrics, piezoelectrics, and ferroelectrics and their properties; Domain effects, magnetization curves, and hysteresis; Electricity; Exact sciences and technology; Gases; LuFe; magnetic properties; Magnetic properties and materials; Magnetism; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Oxygen; Permittivity (dielectric function); Physics; Electrical conductivity; Charge ordering; Dielectric properties; Iron Lutetium Oxides Mixed; LuFe; Nonstoichiometry; O; Ferrites; Thermoremanent magnetization; Monocrystals; Permittivity; Frustration; Magnetic properties
• ISSN: 0015-0193; 1563-5112
• DOI: 10.1080/00150190902859187

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.