Effect of site disorder on the magnetic properties of weak itinerant ferromagnet Ni75Al25

Semwal, Anita ; Kaul, S. N. (2003) Effect of site disorder on the magnetic properties of weak itinerant ferromagnet Ni75Al25 Pramana - Journal of Physics, 60 (3). pp. 513-516. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/pramana/v60/p513/abs.htm

Related URL: http://dx.doi.org/10.1007/BF02706158

Abstract

Detailed study of Ni75Al25 samples with varying degree of site disorder reveals that site disorder promotes magnetic excitations such as spin waves and local spin-density fluctuations and thereby reduces both spin-wave stiffness and Curie temperature. Irreversibility lines in theT-H phase diagram of the weak itinerant ferromagnet Ni75Al25 have been determined for the first time and the effect of site disorder on them has been ascertained.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Itinerant Ferromagnet; Ni3Al; Site Disorder; Spin Wave Stiffness; Magnetic Irreversibility; Spin Fluctuations
ID Code:29986
Deposited On:23 Dec 2010 03:50
Last Modified:17 May 2016 12:45

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