Magnetocapacitance in geometrically frustrated magnet ZnFe 2O4

Takehito Suzuki*, Yuki Aikawa, Takuro Katsufuji

*この研究の対応する著者

研究成果: Article査読

4 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)863-866
ページ数4
ジャーナルjournal of the physical society of japan
74
3
DOI
出版ステータスPublished - 2005 3月

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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