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捕获场对Eu1-xCaxCrO3（x=0～0.3）零场冷磁性测量数据的影响
  • ISSN号：1000-3258
  • 期刊名称：《低温物理学报》
  • 时间：0
  • 分类：TM260.145[电气工程—电工理论与新技术;一般工业技术—材料科学与工程]
  • 作者机构：[1]上海大学物理系,上海200444, [2]上海大学微结构实验室,上海200444
  • 相关基金：国家自然科学基金（批准号：10804067,11074163）资助的课题.
作者： 王星宇[1], 邓冬梅[1], 戴玉蓉[1], 敬超[1], 鲁波[2], 康保娟[1], 曹世勋[1], 张金仓[1]
关键词： 稀土铬酸盐, 负磁化, 倾角反铁磁, rare-earth chromates, negative magnetization, canted-anti{erromagnetism
中文摘要：

采用传统固相反应法制备了EuCrO3和Eu1-xCaxCrO3多晶样品,研究了其磁性质。实验结果显示,样品的零场冷磁化曲线的测量不具有重复性.在冷却过程中,由于超导磁体中残留捕获场的存在,样品中未被补偿的自旋磁矩被诱导沿捕获场方向择优取向,从而决定了零场冷磁化强度在磁相变温度以下的极性.样品在经历一个非完美零场冷却过程以后,得到的名义零场冷磁化曲线对捕获场具有很大的依赖性.

英文摘要：

Eu1-xCaxCrO3 and EuCrO2 polycrystalline samples were prepared by solid state reaction and their magnetic properties have been studied. The results suggest that the trapped field plays a key role in the measurement of the zero-field-cooled magnetization curve. The uncompensated spins of Eu1-xCaxCrO3 and EuCrO3 samples can be easily induced to can be easily in the direction of the trapped field during cooling, and therefore determine the polarity of zero-field-cooled magnetization.

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期刊信息
  • 《低温物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学技术大学
  • 主编：赵忠贤
  • 地址：安徽省合肥市金寨路96号
  • 邮编：230026
  • 邮箱：LiBiyou@ustc.edu.cn
  • 电话：0551-3601359
  • 国际标准刊号：ISSN：1000-3258
  • 国内统一刊号：ISSN：34-1053/O4
  • 邮发代号:26-136
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,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:1577