Magnetocapacitance in geometrically frustrated magnet ZnFe 2O4

Takehito Suzuki, Yuki Aikawa, Takuro Katsufuji

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report the measurement of dielectric constant in ZnFe2O 4 as a function of temperature and magnetic field. The behavior of dielectric constant for single crystals, which is dominated by the pair correlation of the neighboring Fe spins, indicates that ferromagnetic correlation is enhanced below 30 K, but is suppressed below 10 K, where positive magnetocapacitance is enhanced. It is also found that the magnetocapacitance of polycrystalline samples is much larger (∼ 10% at 14 T) than that of single crystals, because of the additional dielectric relaxation coupled with a uniform magnetization.

Original languageEnglish
Pages (from-to)863-866
Number of pages4
Journaljournal of the physical society of japan
Volume74
Issue number3
DOIs
Publication statusPublished - 2005 Mar 1

Keywords

  • Magnetocapacitance
  • Spin frustration
  • Spinel

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Magnetocapacitance in geometrically frustrated magnet ZnFe <sub>2</sub>O<sub>4</sub>'. Together they form a unique fingerprint.

  • Cite this