Magnetic ordering of thin Gd overlayers

Authors

• D. LaGraffe, Syracuse University
• Peter A. Dowben, University of Nebraska-LincolnFollow
• M. Onellion, University of Wisconsin-Madison

Document Type

Article

Date of this Version

July 1989

Comments

Published by American Physical Society. Copyright 1989. Permission to use. Phys. Rev. B40 (1989) 970–976. http://prb.aps.org/.

Abstract

1–6-monolayer-thick films of Gd have been studied with use of synchrotron-radiation photoemission. A method is described that utilizes the linear light polarization to obtain information about the overlayer magnetization. The method is complementary to electron-spin-polarization techniques. The thinner Gd overlayers exhibit a local magnetization component along the surface normal that decreases for thicker overlayers. The Gd films exhibit a 5d exchange splitting that changes from approximately 1.1 to 0.6 eV as the overlayer thickness increases.