4f hybridization and band dispersion in gadolinium thin films and compounds

Takashi Komesu,David Wooton,J Petrosky,H.K Jeong,Ya B Losovyj,Wendong Wang,J.N Crain,P.A Dowben,F.J Himpse,Jinke Tang,M Bissen,I.N Yakovkin

doi:10.1002/pssb.200881553

Abstract

AbstractThere is interplay between intra‐atomic orbital hybridization and extra‐atomic hybridization in various gadolinium systems, which affects magnetic coupling and electron itinerancy (localization). The results do not always follow expectation. The experimental band structure of thin Gd(0001) films, grown on the Mo(112) surface, along the $ \bar \Gamma $ – $ \bar M $ does not agree with expectations even qualitatively. In particular, the dispersion of the gadolinium band, with strong 5d weight near 2 eV binding energy provides considerable evidence to support the case for 4f‐5d hybridization, with increasing 5d localization. On the other hand, there is also evidence of extra‐atomic Gd 4f hybridization leading band dispersion in the occupied 4f levels in Gd2O3 (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Highlights

N.; and Dowben, Peter A., "4f hybridization and band dispersion in gadolinium thin films and compounds" (2009)
Peter Dowben Publications. 238. https://digitalcommons.unl.edu/physicsdowben/238. This Article is brought to you for free and open access by the Research Papers in Physics and Astronomy at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Peter Dowben Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln
We have mapped out band structure of thin Gd films grown on the Mo (112) surface along the Γ – Mhighsymmetry direction of the surface Brillouin zone

Summary

Introduction

N.; and Dowben, Peter A., "4f hybridization and band dispersion in gadolinium thin films and compounds" (2009). It has been accepted for inclusion in Peter Dowben Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln.

Results

Conclusion