...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Scientific reports. >Quantum Tunneling of Magnetization in Ultrasmall Half-Metallic V3O4 Quantum Dots: Displaying Quantum Superparamagnetic State
【24h】

Quantum Tunneling of Magnetization in Ultrasmall Half-Metallic V3O4 Quantum Dots: Displaying Quantum Superparamagnetic State

机译：超小半金属V 3 O 4 量子点中磁化的量子隧穿：显示量子超顺磁态

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Quantum tunneling of magnetization (QTMs), stemming from their importance for understanding materials with unconventional properties, has continued to attract widespread theoretical and experimental attention. However, the observation of QTMs in the most promising candidates of molecular magnets and few iron-based compounds is limited to very low temperature. Herein, we first highlight a simple system, ultrasmall half-metallic V3O4 quantum dots, as a promising candidate for the investigation of QTMs at high temperature. The quantum superparamagnetic state (QSP) as a high temperature signature of QTMs is observed at 16?K, which is beyond absolute zero temperature and much higher than that of conventional iron-based compounds due to the stronger spin-orbital coupling of V3+ ions bringing high anisotropy energy. It is undoubtedly that this ultrasmall quantum dots, V3O4, offers not only a promising candidate for theoretical understanding of QTMs but also a very exciting possibility for computers using mesoscopic magnets.. ? 2012 Macmillan Publishers Limited. All rights reserved
机译：磁化的量子隧穿（QTM）出于其对理解具有非常规特性的材料的重要性而一直在吸引着广泛的理论和实验关注。但是，在分子磁体和少量铁基化合物的最有前途的候选物中观察到QTM仅限于非常低的温度。在这里，我们首先强调一个简单的系统，即超小型半金属V 3 O 4 量子点，作为研究高温QTM的有希望的候选者。量子超顺磁态（QSP）是QTM的高温信号，在16？K时观察到，这超出了绝对零温度，并且由于V3 +离子的自旋轨道耦合更强，因此比常规铁基化合物高得多。高各向异性能量。毫无疑问，这种超小量子点V 3 O 4 不仅为QTM的理论理解提供了有希望的候选者，而且为使用介观磁体的计算机提供了非常令人兴奋的可能性..？ 2012 Macmillan Publishers Limited。版权所有

著录项

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