Angle-resolved photoemission study of the rare-earth intermetallic compounds: RNi2Ge2(R=Eu,Gd)

J. Park, D. P. Brammeier, C. G. Olson, P. C. Canfield, and D. W. Lynch
Phys. Rev. B 70, 075105 – Published 18 August 2004

Abstract

Experimental energy bands mapped from normal-emission photoelectron spectra of EuNi2Ge2 and GdNi2Ge2(001) surfaces show four photoemission features that disperse in both materials in good agreement with band calculations. Segments of the Fermi surfaces mapped by angle-resolved photoemission spectroscopy in the ΓXPZ plane of the Brillouin zones for both EuNi2Ge2 and GdNi2Ge2 are in good agreement with band calculations. This Fermi surface segment changes when one electron is added to EuNi2Ge2, corresponding to GdNi2Ge2, based on the rigid-band approximation.

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  • Received 5 April 2004

DOI:https://doi.org/10.1103/PhysRevB.70.075105

©2004 American Physical Society

Authors & Affiliations

J. Park, D. P. Brammeier, C. G. Olson, P. C. Canfield, and D. W. Lynch

  • Department of Physics and Astronomy and Ames Laboratory, U.S. Department of Energy, Iowa State University, Ames, Iowa 50011, USA

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Issue

Vol. 70, Iss. 7 — 15 August 2004

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