• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Solid State Communications >Magnetic moments of small hydrogen clusters
【24h】

Magnetic moments of small hydrogen clusters

机译：小氢簇的磁矩

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

Molecular beams of small normal hydrogen (nH(2)) clusters (N approximate to 20) produced in a low temperature free jet expansion are investigated for their magnetic properties by deflecting them in an inhomogeneous Stern-Gerlach type magnetic field. The mass distributions of the clusters are measured by diffraction from a nano-structured transmission grating. With their masses known the Gaussian shaped symmetric deflection patterns of the pure nH2 clusters can be simulated by a random distribution of both the nuclear and rotational magnetic moments of the 75% ortho J = 1 component. Upon cooling the nH(2) clusters to below I K by expanding a mixture of 5% nH(2) in 95% He-4 gas the deflection pattern is split into three central peaks. This observation is consistent with a partial orientational ordering of the ortho H-2 molecules leading to a reduction of the total rotational magnetic moments of the clusters. (C) 2004 Elsevier Ltd. All rights reserved.
机译：通过在不均匀的斯特恩-盖拉赫（Stern-Gerlach）型磁场中偏转分子束，研究了在低温自由射流膨胀下产生的小常规氢分子束（nH（2））（N约为20）的磁性能。团簇的质量分布通过来自纳米结构的透射光栅的衍射来测量。利用已知的质量，可以通过75％正交J = 1分量的核磁矩和旋转磁矩的随机分布来模拟纯nH2团簇的高斯形状对称偏转模式。通过将5％nH（2）在95％He-4气体中的混合物膨胀，将nH（2）团簇冷却至I K以下时，偏转模式分为三个中心峰。该观察结果与邻H-2分子的部分取向顺序一致，导致簇的总旋转磁矩减少。 （C）2004 Elsevier Ltd.保留所有权利。

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