...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Inhomogeneous nuclear spin polarization induced by helicity-modulated optical excitation of fluorine-bound electron spins in ZnSe
【24h】

Inhomogeneous nuclear spin polarization induced by helicity-modulated optical excitation of fluorine-bound electron spins in ZnSe

机译：ZnSe中氟结合的电子自旋的螺旋度调制光激发引起的不均匀核自旋极化

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

Optically induced nuclear spin polarization in a fluorine-doped ZnSe epilayer is studied by time-resolved Kerr rotation using resonant excitation of donor-bound excitons. Excitation with helicity-modulated laser pulses results in a transverse nuclear spin polarization, which is detected as a change of the Larmor precession frequency of the donor-bound electron spins. The frequency shift in dependence on the transverse magnetic field exhibits a pronounced dispersion-like shape with resonances at the fields of nuclear magnetic resonance of the constituent zinc and selenium isotopes. It is studied as a function of external parameters, particularly of constant and radio frequency external magnetic fields. The width of the resonance and its shape indicate a strong spatial inhomogeneity of the nuclear spin polarization in the vicinity of a fluorine donor. A mechanism of optically induced nuclear spin polarization is suggested based on the concept of resonant nuclear spin cooling driven by the inhomogeneous Knight field of the donor-bound electron.
机译：通过使用供体结合的激子的共振激发，通过时间分辨的Kerr旋转研究了掺氟ZnSe外延层中的光诱导核自旋极化。用螺旋度调制的激光脉冲激发会产生横向核自旋极化，这被检测为与供体结合的电子自旋的拉莫尔进动频率的变化。依赖于横向磁场的频移呈现出明显的分散状形状，并且在组成的锌和硒同位素的核磁共振场处发生共振。根据外部参数，特别是恒定和射频外部磁场，对它进行了研究。共振的宽度及其形状表明，在氟供体附近，核自旋极化存在强烈的空间不均匀性。根据由供体结合电子的不均匀奈特场驱动的共振核自旋冷却概念，提出了一种光诱导核自旋极化的机制。

著录项

  • 来源
    《Physical review》 |2015年第24期|245441.1-245441.11|共11页
  • 作者

    F. Heisterkamp; A. Greilich; E. A. Zhukov; E. Kirstein; T. Kazimierczuk; V. L. Korenev; I. A. Yugova; D. R. Yakovlev; A. Pawlis; M. Bayer;

  • 作者单位

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany,Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany,Ioffe Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia;

    Physical Faculty of St. Petersburg State University, 198504 St. Petersburg, Russia;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany,Ioffe Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia;

    Peter Gruenberg Institute (PGI-9), Forschungszentrum Juelich, 52425 Juelich, Germany;

    Experimentelle Physik 2, Technische Universitaet Dortmund, 44221 Dortmund, Germany,Ioffe Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia;

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

    nuclear magnetic resonance and relaxation; optically detected magnetic resonance (ODMR);

    机译：核磁共振和弛豫;光学检测磁共振（ODMR）;

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