Behaviour of manganese derived 3d-states in c(2 x 2) and pgg(4 x 2) Mn/Cu(001)

Angle-resolved photoemission studies of c(2 x 2)MnCu/Cu(0 0 1) and pgg(4 x 2)Mn/Cu(0 0 1) prepared by in situ deposition of Mn on Cu(0 0 1) are report ed. For the c(2 x 2) superstructure, the Mn 3d-derived band is found at 3.0 eV binding energy at the <(<Gamma>)over bar>(e(2x2)) of the second surface Brillouin zone. An identical energy position is observed for the pgg(4 x 2 ) structure indicating the presence of the same high-spin ground state as i n the c(2 x 2). (C) 2001 Elsevier Science B.V. All rights reserved.