Perovskite manganites: Potential materials for magnetic cooling at or near room temperature

Y. Xu, M. Meier, P. Das, M. R. Koblischka, U. Hartmann

研究成果: Article査読

84 被引用数 (Scopus)

抄録

Perovskite manganites are known as functional materials showing colossal magnetoresistance and are used as magnetic sensors. We report on the synthesis and characterization of La0.67Ca0.33MnO3, La0.67Sr0.33MnO3, and La0.67Ba0.33MnO3 polycrystalline bulk materials. Detailed measurements of the magnetization as function of temperature and magnetic field for these samples were carried out. Significant entropy changes near the Curie temperatures are obtained from the magnetization data. The specific heat changes of these samples near their phase transition temperatures are derived from magnetic measurements. Our results and the relevant data from various references are summarized. Furthermore the magnetocaloric effects and potential applications in magnetic cooling of perovskite manganite materials are evaluated.

本文言語English
ページ(範囲)383-389
ページ数7
ジャーナルCrystal Engineering
5
3-4 SPEC.
DOI
出版ステータスPublished - 2002 1 1
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料化学

フィンガープリント

「Perovskite manganites: Potential materials for magnetic cooling at or near room temperature」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル