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Probing high-energy electronic excitations in NiO using inelastic neutron scattering

机译:用非弹性中子散射探测NiO中的高能电子激发

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摘要

High-energy local multiplet excitations of the d electrons are revealed in our inelastic neutron scattering measurements on the prototype magnetic insulator NiO. These become allowed by the presence of both nonzero crystal field and spin-orbit coupling. The observed excitations are consistent with optical, x-ray, and EELS measurements of d-d excitations. This experiment serves as a proof of principle that high-energy neutron spectroscopy is a reliable and useful technique for probing electronic excitations in systems with significant crystal-field and spin-orbit interactions.
机译:d电子的高能局域多重激发在我们对原型绝缘子NiO的非弹性中子散射测量中得以揭示。非零晶体场和自旋轨道耦合的存在允许这些。观察到的激发与d-d激发的光学,x射线和EELS测量一致。该实验证明了高能中子光谱技术是一种可靠且有用的技术,可用于探测具有显着晶体场和自旋轨道相互作用的系统中的电子激发。

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  • 来源
    《Physical review》 |2011年第8期|p.085132.1-085132.5|共5页
  • 作者单位

    Department of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7;

    Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA;

    NIST Center for Neutron Research, 100 Bureau Drive, Gaithersburg, Maryland 20899, and Indiana University Cyclotron Facility, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47404, USA;

    ISIS Facility, Rutherford Appleton Laboratory, STFC, Chilton, Didcot, Oxon OX11 OQX, and Department of Physics and Astronomy,University College London, Gower Street, London WC1E 6BT, United Kingdom;

    Institute for Theoretical Solid State Physics, 1FW Dresden, DE-0I171 Dresden, Germany;

    Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA and Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA;

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

    neutron inelastic scattering; crystal and ligand fields; spin-orbit coupling, zeeman and stark splitting, jahn-teller effect; studies of specific magnetic materials;

    机译:中子非弹性散射;晶体和配体场;自旋轨道耦合;塞曼和斯塔克分裂;詹恩-泰勒效应;特殊磁性材料的研究;

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