EMERGING CHARGE STATE AFTER GRAZING COLLISIONS
OF IONS ON SnTe SURFACES 

C.C. Montanari, M.S.Gravielle$^\ast$ and J.E. Miraglia

Instituto de Astronomia y Fisica del Espacio,
C.C. 67, Suc. 28, 1428 Buenos Aires, Argentina
$^\ast$Also at Departamento de Fisica, FCEyN, Universidad de Buenos Aires

Emerging charge  states  for  ions  impinging grazingly on a SnTe
surface are calculated  at  high  impact  velocities.  The charge
state distribution is obtained  as result of electron capture and
loss processes produced by binary  collisions  of  the projectile
with the surface atoms.  We find that the projectile comes out of
the surface with a charge state larger than that corresponding to
transmission through solids.