Communication

Giant Room–Temperature Magnetodielectric Response in the Electronic Ferroelectric LuFe2O4

  1. M. A. Subramanian1,
  2. T. He1,
  3. J. Chen1,
  4. N. S. Rogado1,
  5. T. G. Calvarese1,
  6. A. W. Sleight2

Article first published online: 8 JUN 2006

DOI: 10.1002/adma.200600071

Issue

Advanced Materials

Advanced Materials

Volume 18, Issue 13, pages 1737–1739, July, 2006

Additional Information

How to Cite

Subramanian, M. A., He, T., Chen, J., Rogado, N. S., Calvarese, T. G. and Sleight, A. W. (2006), Giant Room–Temperature Magnetodielectric Response in the Electronic Ferroelectric LuFe2O4. Adv. Mater., 18: 1737–1739. doi: 10.1002/adma.200600071

Author Information

  1. 1

    DuPont Central Research and Development, Experimental Station, Wilmington, DE 19880–0328, USA

  2. 2

    Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA

Publication History

  1. Issue published online: 27 JUN 2006
  2. Article first published online: 8 JUN 2006
  3. Manuscript Accepted: 22 FEB 2006
  4. Manuscript Received: 12 JAN 2006

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Keywords:

  • Dielectrics;
  • Ferroelectric materials;
  • Magnetic fields
Thumbnail image of graphical abstract

A very large drop in dielectric constant upon application of small magnetic fields is observed at room temperature for LuFe2O4 (see figure). Such behavior is unprecedented and indicates a strong coupling of spins and electric dipoles at room temperature. This behavior of LuFe2O4 is apparently related to its ferroelectricity, which occurs through the highly unusual mechanism of Fe2+ and Fe3+ ordering.

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