APS » PROLA » Phys. Rev. B » Volume 59 » Issue 24

Phys. Rev. B 59, R15598 - R15600 (1999)

Double photoionization of He near a polarizable surface

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Guido Goldoni
Istituto Nazionale per la Fisica della Materia (INFM), and Dipartimento di Fisica, Università di Modena, Via Campi 213/A, I-41100 Modena, Italy

Rapid Communication Received 19 November 1998

We calculate the differential cross section of the direct double photoionization of He physisorbed on a polarizable surface. By including the influence of the surface potential in the correlated two-electron final-state wave function, we show that the differential cross section carries detailed information on the electronic correlations at the surface. In particular, photoemission along opposite directions, which is prohibited in the free space, is allowed if the surface potential is long ranged.


©1999 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v59/pR15598
DOI: 10.1103/PhysRevB.59.R15598
PACS: 32.80.Fb, 79.60.-i

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