Conduction electron spin resonance in Mg1-xAlxB2

V. Likodimos, S. Koutandos, M. Pissas, G. Papavassiliou, K. Prassides

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Conduction electron spin resonance is employed to study the interplay of the electronic and structural properties in the normal state of Mg1-xAlxB2 alloys as a function of Al-doping for 0 ≤ x ≤ 1. The x-dependence of the spin susceptibility reveals considerable reduction of the total density of states N(EF) with increasing Al concentration, complying with theoretical predictions for a predominant filling effect of the hole σ bands by electron doping. The CESR linewidth exhibits significant broadening, especially prominent in the high-Al-content region, indicative of the presence of enhanced structural disorder, consistent with the presence of compositional fluctuations.

Original languageEnglish
Pages (from-to)116-121
Number of pages6
JournalEurophysics Letters
Volume61
Issue number1
DOIs
Publication statusPublished - 2003 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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