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© 2001 American Physical Society (APS). This is the accepted version of the following article: Sillanpää, J. & Peltola, J. & Nordlund, K. & Keinonen, J. & Puska, Martti J. 2001. Electronic stopping calculated using explicit phase shift factors. Physical Review B. Volume 63, Issue 13. 134113/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.63.134113, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.63.134113.