HYBRIDIZATION BETWEEN 4f-5d STATES IN ErAs(100)-Reference-Cited by-同舟云学术

HYBRIDIZATION BETWEEN 4f-5d STATES IN ErAs(100)

Published:2004-12 Issue:06 Volume:11 Page:531-539
ISSN:0218-625X
Container-title:Surface Review and Letters
language:en
Short-container-title:Surf. Rev. Lett.

Author:

DUAN CHUN-GANG¹,KOMESU TAKASHI²,JEONG HAE-KYUNG²,BORCA C. N.²,YIN WEI-GUO¹,LIU JIANJUN¹,MEI W. N.¹,DOWBEN P. A.²,PETUKHOV A. G.³,SCHULTZ B. D.⁴,PALMSTRØM C. J.⁴

Affiliation:

1. Department of Physics, University of Nebraska at Omaha, Omaha, Nebraska 68182-0266, USA

2. Department of Physics and Astronomy and the Center for Materials Research and Analysis University of Nebraska-Lincoln, Lincoln, NE 68588-0111, USA

3. Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701-3995, USA

4. Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, MN 55455, USA

Abstract

Generally in both elemental and compound rare earth systems, the 4f levels are treated as core states with little interaction with the 5d hybrid conduction and valence band states. In the present study, the band dispersions of the rare-earth pnictide erbium arsenide ( ErAs ) are observed to be perturbed from this expectation. Both photoemission symmetry selection rules and ab initio calculations provide evidences of the 4f - 5d hybridization. This finding is also supported by the f–f resonant transition excitation energy shifts in characteristic electron-energy-loss spectroscopy (EELS).

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218625X04006451

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