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LaFe_11.6Si_1.4C_0.5间隙化合物的磁性、磁相变和磁熵变
  • ISSN号：1000-4343
  • 期刊名称：《中国稀土学报》
  • 时间：0
  • 分类：O482.52[理学—固体物理;理学—物理]
  • 作者机构：中科院物理研究所磁学国家重点实验室，北京100080
  • 相关基金：863项目(2002AA324010);973项目(G1998061305);国家自然科学基金项目(59525101);中科院王宽诚博士后基金资助
作者： 陈远富, 王芳, 王光军, 孙继荣, 沈保根
关键词： 凝聚态物理, NaZn13型间隙碳化物, 磁熵变, 磁致冷材料, 稀土
中文摘要：

使用了约80％的廉价铁原料，制备了LaFe11．6Sil．4C0．5间隙化合物。研究表明：该间隙化合物仍保持了LaFe11．6Sil．4的NaZnl3立方晶体结构，间隙C原子的引入导致晶格膨胀了约0．35％，居里点提高了约50K；同时，仍然保持大的磁熵变，在0-2T磁场变化下，磁熵变达到Gd的2倍以上，大磁熵变源于磁场诱发的巡游电子变磁相变。该间隙化合物具有大磁熵变。

同期刊论文项目
磁性与磁光材料(软磁,硬磁,记录用磁性合金,磁致伸缩合金)
期刊论文 188
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期刊信息
  • 《中国稀土学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国稀土学会
  • 主编：徐光宪
  • 地址：北京新街口外大街2号
  • 邮编：100088
  • 邮箱：jrechina@263.net
  • 电话：010-62014832
  • 国际标准刊号：ISSN：1000-4343
  • 国内统一刊号：ISSN：11-2365/TG
  • 邮发代号:2-612
  • 获奖情况:
  • 优秀科技期刊奖,中国科协择优资助期刊,中国科协期刊奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:12811