Local Spin Configurations of Fe Atoms in Microinhomogeneous PdMnxFe1-x Alloys

Abstract:

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The Mössbauer spectra of PdMnxFe1-x alloys obtained at 80 K and at 300 K were studied in the 0.2 < x < 0.8 concentration range, in which there realizes a microinhomogeneous multiphase medium formed by isostructure phases of the constituent compositions: ferromagnetic PdFe (ТС=730 К) alloy undergoing atomic ordering and antiferromagnetic PdMn (TN=815 К) intermetallic compound. Magnetic properties studies evidence the presence of a third presumably noncollinear phase with its own ordering temperature lying below the Curie temperature of the ferromagnetic phase in the 0.2 < x < 0.8 concentration range. The Mössbauer spectra at 300 K exhibit a doublet for antiferromagnetic alloys (x > 0.8) and a sextet at Hhf ~350 kOe for ferromagnetic alloys (x < 0.2). In the intermediate concentration range several peaks 0 < Hhf < 350 kOe have been observed in the P(Hhf) curves, which result from microinhomogeneous multiphase state.

Info:

Periodical:

Solid State Phenomena (Volumes 152-153)

Edited by:

N. Perov

Pages:

49-53

DOI:

10.4028/www.scientific.net/SSP.152-153.49

Citation:

V.V. Serikov et al., "Local Spin Configurations of Fe Atoms in Microinhomogeneous PdMnxFe1-x Alloys ", Solid State Phenomena, Vols. 152-153, pp. 49-53, 2009

Online since:

April 2009

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$35.00

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