Exchange splitting of an oxygen 2p-derived band at Ni(110)
Employing spin-resolved inverse photoemission, an exchange splitting of the unoccupied oxygen-induced band in the chemisorption system (2 x 1)-O/Ni(110) has been observed. At the centre of the surface Brillouin zone the splitting between the oxygen 2p-derived majority and minority band - referred to the magnetization vector of nickel - was found to be 80 + - 20 MeV. This effect is a manifestation of the strong magnetic correlation between the oxygen and nickel bands. The size of the splitting is surprising as earlier experimental work indicated a substantial reduction of the surface magnetization due to chemisorption. For the empty 2(pi)* derived band of CO on Ni(110) no such splitting has been observed.
Bibliographic Reference: Article: Surface Science, Vol. 206 (1988), pp. L888-L894
Record Number: 198910187 / Last updated on: 1994-12-01
Original language: en
Available languages: en