...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Magnetic relaxation process determination in the Co/Au nanoparticle system
【24h】

Magnetic relaxation process determination in the Co/Au nanoparticle system

机译：Co / Au纳米粒子系统中的磁性弛豫过程测定

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nonequilibrium magnetic dynamics has been investigated in the Co/Au bimetallic nanoparticle system. The system exhibits typical superparamagnetic behavior at higher temperatures and unequivocal hallmarks of magnetic relaxation process at T ～ 7 K. Since different scenarios of magnetic transition can be hypothesized here, detailed analysis of magnetization ac and dc experimental data has been performed. Specific methods have been employed in order to reveal the nature of the examined process. The observation of critical dynamics [power-law divergence of the relaxation time at T_g; dynamic scaling of x"(T, f) data] and aging effects in the presence of strong interparticle interactions provide evidence that the system undergoes a transition to a super-spin-glass state rather than to a super-spin-blocked state.
机译：在CO / Au双金属纳米粒子系统中研究了非QuiBibrium磁性动力学。该系统在较高温度下表现出典型的超顺磁性行为，在T〜7 K的磁性松弛过程的明确标志中。由于这里可以假设不同的磁转变场景，已经进行了对磁化AC和DC实验数据的详细分析。已经采用了具体方法，以揭示检查过程的性质。观察临界动力学[T_G在弛豫时间的权力差异; X“（T，F）数据的动态缩放和在强底颗粒相互作用存在下的老化效应提供了证据，即该系统经历过渡到超旋转玻璃状态而不是超旋转堵塞状态。

著录项

  • 来源
    《Physical review》 |2020年第2期|024433.1-024433.9|共9页
  • 作者

    Pavol Hrubovcak; Adriana Zelenakova; Vladimir Zelenak; Davide Peddis; Dino Fiorani;

  • 作者单位

    Frank Laboratory of Neutron Physics Joint Institute for Nuclear Research Dubna 141980 Russia and Department of Solid State Physics P. J. Safarik University Park Angelinum 9 Kosice Slovakia;

    Department of Solid State Physics P. J. Safarik University Park Angelinum 9 Kosice Slovakia;

    Department of Inorganic Chemistry P. J. Safarik University Moyzesova 11 Kosice Slovakia;

    ISM-CNR Area della Ricerca Roma 1 Via Salaria km 29 300 Cassella Postale 10 00016 Monterotondo Italy;

    ISM-CNR Area della Ricerca Roma 1 Via Salaria km 29 300 Cassella Postale 10 00016 Monterotondo Italy;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号