Spin-orbit and exchange effects in elastic scattering of spin-polarized electrons from spin-polarized Na atoms

We report the first measurements of elastic scattering of spin-polarized electrons from spin-polarized Na atoms as a function of scattering angle. The incident energy is 54.4 eV, and the angular range is 20/sup 0/--135/sup 0/. Data are presented as an exchange asymmetry and a spin-orbit asymmetry. E...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1987-05, Vol.58 (21), p.2198-2200
Hauptverfasser:	MCCLELLAND, J. J, KELLEY, M. H, CELOTTA, R. J
Format:	Artikel
Sprache:	eng
Schlagworte:	640304 - Atomic, Molecular & Chemical Physics- Collision Phenomena ALKALI METALS ASYMMETRY ATOM COLLISIONS Atomic and molecular collision processes and interactions ATOMIC AND MOLECULAR PHYSICS COLLISIONS COUPLING ELASTIC SCATTERING ELECTRON COLLISIONS Electron scattering ELECTRON-ATOM COLLISIONS ELEMENTS ENERGY RANGE EV RANGE EV RANGE 10-100 Exact sciences and technology INTERMEDIATE COUPLING L-S COUPLING METALS ORIENTATION Physics SCATTERING SODIUM SPIN ORIENTATION
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Zusammenfassung:	We report the first measurements of elastic scattering of spin-polarized electrons from spin-polarized Na atoms as a function of scattering angle. The incident energy is 54.4 eV, and the angular range is 20/sup 0/--135/sup 0/. Data are presented as an exchange asymmetry and a spin-orbit asymmetry. Each asymmetry has a magnitude of 3% to 4%, indicating that both the exchange and spin-orbit interactions must be taken into account to predict our experimental results.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.58.2198