Optical properties and electronic structure of MnAl-C alloys

L. V. Nomerovannay, N. A. Popova, V. I. Anisimov, M. A. Korotin

Research output: Contribution to journalArticlepeer-review

Abstract

We have studied the optical properties of MnAl-C alloys with excess manganese and calculated the electronic structure of equiatomic MnAl and of an impurity Mn atom in an Al site in order to understand the variations in the electronic spectrum of the compounds associated with the presence of an antistructure Mn atom in the Al sublattice on departure from stoichiometry. The experimental curves of optical conductivity are given. It is shown that the energy spectrum of ferromagnetic MnAl is a combination of two band systems for electrons with spins oriented in and against the direction of spontaneous magnetization.

Original languageEnglish
Pages (from-to)188-191
Number of pages4
JournalPhysics of Metals and Metallography
Volume67
Issue number6
Publication statusPublished - 1989
Externally publishedYes

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