Magnetic properties of electrodeposited, melt-quenched, and liquid Ni-P alloys

I. Bakonyi, A. Burgstaller, W. Socher, J. Voitländer, E. Tóth-Kádár, A. Lovas, H. Ebert, E. Wachtel, N. Willmann, H. H. Liebermann

Research output: Contribution to journalArticle

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Abstract

A comprehensive study of the magnetic properties of Ni100-xPx alloys prepared by electrodeposition with 11.5≤x≤23.2 and by melt quenching with 16.3≤x≤21.0 was performed for temperatures 4.2T≤300 K in magnetic fields up to H=9 kOe and, for most of the melt-quenched alloys, for T300 K including the molten state as well. The individual contributions to the magnetization were identified and determined separately. The matrix of Ni-P alloys was found to exhibit Pauli paramagnetism for x17 and very weak itinerant ferromagnetism for x14. However, magnetic inhomogeneities in the form of ferromagnetic precipitates, giant-moment paramagnetic clusters and/or superparamagnetic particles could be identified throughout the whole concentration range studied and their amount and character varied significantly with alloy composition and preparation technique. In the paramagnetic phase, the temperature-independent Pauli susceptibility was not sensitive to the way of preparation, it agreed well with extrapolated room-temperature liquid-state data, decreased approximately linearly with increasing P content and extrapolated to the corresponding value of the crystalline stoichiometric compound Ni3P. In the ferromagnetic phase, the magnetization data of the matrix could be reasonably well accounted for in terms of the Stoner-Edwards-Wohlfarth model and the theory of Mathon, yielding 85.7 at. % Ni as the critical concentration for the onset of spontaneous magnetic order. For alloys in the intermediate composition range (14x17), the observed magnetization was dominated by the contribution of superparamagnetic particles.

Original languageEnglish
Pages (from-to)14961-14976
Number of pages16
JournalPhysical Review B
Volume47
Issue number22
DOIs
Publication statusPublished - 1993

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Magnetic properties
magnetic properties
Liquids
liquids
Magnetization
magnetization
Paramagnetism
preparation
paramagnetism
Ferromagnetism
matrices
Chemical analysis
Electrodeposition
electrodeposition
Temperature
ferromagnetism
Molten materials
Precipitates
precipitates
Quenching

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Bakonyi, I., Burgstaller, A., Socher, W., Voitländer, J., Tóth-Kádár, E., Lovas, A., ... Liebermann, H. H. (1993). Magnetic properties of electrodeposited, melt-quenched, and liquid Ni-P alloys. Physical Review B, 47(22), 14961-14976. https://doi.org/10.1103/PhysRevB.47.14961

Magnetic properties of electrodeposited, melt-quenched, and liquid Ni-P alloys. / Bakonyi, I.; Burgstaller, A.; Socher, W.; Voitländer, J.; Tóth-Kádár, E.; Lovas, A.; Ebert, H.; Wachtel, E.; Willmann, N.; Liebermann, H. H.

In: Physical Review B, Vol. 47, No. 22, 1993, p. 14961-14976.

Research output: Contribution to journalArticle

Bakonyi, I, Burgstaller, A, Socher, W, Voitländer, J, Tóth-Kádár, E, Lovas, A, Ebert, H, Wachtel, E, Willmann, N & Liebermann, HH 1993, 'Magnetic properties of electrodeposited, melt-quenched, and liquid Ni-P alloys', Physical Review B, vol. 47, no. 22, pp. 14961-14976. https://doi.org/10.1103/PhysRevB.47.14961
Bakonyi, I. ; Burgstaller, A. ; Socher, W. ; Voitländer, J. ; Tóth-Kádár, E. ; Lovas, A. ; Ebert, H. ; Wachtel, E. ; Willmann, N. ; Liebermann, H. H. / Magnetic properties of electrodeposited, melt-quenched, and liquid Ni-P alloys. In: Physical Review B. 1993 ; Vol. 47, No. 22. pp. 14961-14976.
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