Influence of sp-d hybridization on the electronic structure of Al-Mn alloys

Shukla, A. K. ; Biswas, C. ; Dhaka, R. S. ; Das, S. C. ; Krüger, P. ; Barman, S. R. (2008) Influence of sp-d hybridization on the electronic structure of Al-Mn alloys Physical Review B: Condensed Matter and Materials Physics, 77 (19). 195103_1-195103_6. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v77/i19/e195103

Related URL: http://dx.doi.org/10.1103/PhysRevB.77.195103

Abstract

The influence of sp-d hybridization on the electronic structure of different Al-Mn alloys has been studied by photoelectron spectroscopy. Experimental evidence of a pseudogap in a crystalline binary Hume-Rothery alloy is provided. The pseudogap varies systematically with Mn concentration. The sp-d hybridization alone, even in the absence of Hume-Rothery mechanism, can produce the pseudogap. Existence of the pseudogap, suppression of the Mn 2p satellite, and decrease in the Doniach-Šunjić asymmetry parameter are the consequences of the sp-d hybridization. An in situ method of preparing these alloys by annealing a Mn adlayer on Al(111) is presented.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:64588
Deposited On:12 Oct 2011 05:21
Last Modified:17 Jul 2012 08:33

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