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IRIDIUM-BASED PYROCHLORE TYPE ELECTRICALLY CONDUCTIVE SUBSTANCE AND METHOD FOR PREPARATION THEREOF

外国特許コード F040001045
整理番号 (A062P56)
掲載日 2005年4月25日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2001JP007234
国際公開番号 WO 2002/018274
国際出願日 平成13年8月23日(2001.8.23)
国際公開日 平成14年3月7日(2002.3.7)
優先権データ
  • 特願2000-260319 (2000.8.30) JP
発明の名称 (英語) IRIDIUM-BASED PYROCHLORE TYPE ELECTRICALLY CONDUCTIVE SUBSTANCE AND METHOD FOR PREPARATION THEREOF
発明の概要(英語) An electrically conductive substance having a pyrochlore structure which is represented by the general formula R2Ir2O7, wherein R represents one or more elements selected from the rare earth elements: La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Z. The substance is a novel substance which exhibits both of useful characteristics of the geometrically frustrated state, wherein magnetic state is controllable by an external magnetic field or the like, and a good electrical cnductivity which leads to electric controllability and utilization of accumulated heat. In particular, the above conductive substance wherein R represents one or more elements selected from among La, Ce, Pr, Nd, Pm, Sm, and Eu exhibits metallic electrical conductivity characteristics, and therefore is useful as a functional electronic material having magnetic controllabiltity and a heat accumulating material having a large heat capacity.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Japan Science And Technology Corporation
  • 発明者(英語)
  • Maeno,Yoshiteru
  • Yanagishima,Daiki
国際特許分類(IPC)
参考情報 (研究プロジェクト等) CREST Phenomena of Extreme Conditions AREA
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