Mössbauer and magnetization studies in Fe3−xRuxSi

Mishra, S. N. ; Rambabu, D. ; Grover, A. K. ; Pillay, R. G. ; Tandon, P. N. ; Devare, H. G. ; Vijayaraghavan, R. (1985) Mössbauer and magnetization studies in Fe3−xRuxSi Journal of Applied Physics, 57 (8). pp. 3258-3260. ISSN 0021-8979

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Official URL: http://link.aip.org/link/?JAPIAU/57/3258/1

Related URL: http://dx.doi.org/10.1063/1.335117


Magnetization and 57Fe Mössbauer studies have been made in Fe3−xRuxSi for 0≤x≤2. Up to x=1.35, the alloys behave like collinear ferromagnets and μ/f.u. and HF (Fe) values do not show any appreciable change, thus suggesting that Ru replacing magnetic Fe (A,C) atoms also possess a large moment of ~1 μB. For x >1.35, the approach of magnetization to saturation becomes progressively slower and the system acquires an inhomogeneous magnetic structure. In the region 1.45 ≤x < 1.8, Tm and Thf, the HF (Fe) evolution temperature, fall rapidly, with Thf ≪ Tm resulting in a behavior a la RuFeSi. For x > 1.8, majority of the Fe atoms are on B site and they presumably undergo AF/random freezing. Even though Tm and magnetization behavior show considerable variation across the region 1≤x≤2, the character of Mössbauer spectra does not change and HF (Fe)av measured at 4.2 K remain ~250 kOe.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Magnetization; Iron 57; Moessbauer Effect; Saturation; Internal Magnetic Field; Annealing; Crystal Structure; X-ray Diffraction; Iron Alloys; Ruthenium Alloys; Silicon Alloys; Magnetic-phase Transformations; Magnetic Ordering; Paramagnetism; Metallic Glasses
ID Code:61695
Deposited On:15 Sep 2011 11:38
Last Modified:10 Jul 2012 08:00

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