The influence of substitutional atoms upon the electron structure of the iron-based transition metal alloys

• Published in: Journal of physics. Condensed matter Vol. 10; no. 8; pp. 1825 - 1838
• Main Authors: Shanina, B D, Gavriljuk, V G, Konchits, A A, Kolesnik, S P
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 02.03.1998; Institute of Physics
• Subjects: Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electron density of states and band structure of crystalline solids; Electron states; Exact sciences and technology; Metals. Metallurgy; Physics; Transition metals and alloys; Temperature dependence; FCC lattices; ESR; Molybdenum additions; Doped materials; Chromium additions; Copper additions; Manganese additions; Experimental study; Magnetic susceptibility; g-factor; Electronic structure; Iron base alloys
• ISSN: 0953-8984; 1361-648X
• DOI: 10.1088/0953-8984/10/8/015

The influence of the substitutional atoms Cr, Mn, Ni, Cu, Mo in iron-based alloys on the stability of the crystalline fcc structure and the change of the electron state density at the Fermi surface are studied by means of conduction electron spin resonance (CESR). The temperature dependence of the CESR g-factor and of its integral intensity is measured and analysed in relation to theoretical predictions. It is shown that Cr, Mn and Mo decrease the state density at the Fermi surface in the fcc iron, whereas Ni and Cu increase it. The study singles out the contributions of three electron subsystems (conduction s electrons, localized isolated d electrons and those included in superparamagnetic clusters) to g(T) and traces the important role of substitutional alloying elements in the formation of clusters in fcc solid Solution.