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Universal Diffraction of Atomic and Molecular Matter-Waves: A Comparison of He and D-2 Quantum Reflected from a Grating
Zhang, Weiqing1,4; Lee, Ju Hyeon2; Kim, Hye Ah2; Jin, Byung Gwun2; Kim, Bong Jun2; Kim, Lee Yeong3; Zhao, Bum Suk2,3; Schoellkopf, Wieland1
关键词Atom Optics Atom-surface Interaction Emerging Beam Resonance Matter-wave Diffraction Quantum Reflection
刊名CHEMPHYSCHEM
2016-11-01
DOI10.1002/cphc.201600965
17期:22页:3670-3676
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
关键词[WOS]SURFACE
英文摘要Molecular beams of He and D-2 are scattered from a ruled diffraction grating in conical-mount geometry under grazing-incidence conditions. Fully resolved diffraction patterns as a function of detection angle are recorded for different grating azimuth angles and for two different kinetic energies of the particle beams. Variations in diffraction peak widths are traced back to different velocity spreads of He and D-2 determined by time-of-flight measurements. A comprehensive analysis of diffraction intensities confirms universal diffraction, that is, for identical deBroglie wavelengths, the relative diffraction intensities for He and D-2 are the same. Universal diffraction results from peculiarities of quantum reflection of the atoms and molecules from the diffraction grating. In quantum reflection particles scatter many nanometers in front of the surface from the long-range attractive branch of the particle-surface interaction potential without probing the potential well and the short-range repulsive branch of the potential.
语种英语
WOS记录号WOS:000388625000011
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150349
专题中国科学院大连化学物理研究所
作者单位1.Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany
2.Ulsan Natl Inst Sci & Technol, Dept Chem, Ulsan 44919, South Korea
3.Ulsan Natl Inst Sci & Technol, Dept Phys, Ulsan 44919, South Korea
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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Zhang, Weiqing,Lee, Ju Hyeon,Kim, Hye Ah,et al. Universal Diffraction of Atomic and Molecular Matter-Waves: A Comparison of He and D-2 Quantum Reflected from a Grating[J]. CHEMPHYSCHEM,2016,17(22):3670-3676.
APA Zhang, Weiqing.,Lee, Ju Hyeon.,Kim, Hye Ah.,Jin, Byung Gwun.,Kim, Bong Jun.,...&Schoellkopf, Wieland.(2016).Universal Diffraction of Atomic and Molecular Matter-Waves: A Comparison of He and D-2 Quantum Reflected from a Grating.CHEMPHYSCHEM,17(22),3670-3676.
MLA Zhang, Weiqing,et al."Universal Diffraction of Atomic and Molecular Matter-Waves: A Comparison of He and D-2 Quantum Reflected from a Grating".CHEMPHYSCHEM 17.22(2016):3670-3676.
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