Magnetic properties of amorphous and liquid Ni-P-B alloys

I. Bakonyi, H. Ebert, W. Socher, J. Voitländer, E. Wachtel, N. Willmann, B. Predel

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In order to study the change of the magnetic properties upon the transition from the Ni-B to the Ni-P system, the amorphous alloy series Ni81.5PxB18.5-x with x = 0, 1.8, 3.7, 7.4, 13, 16.7 and 18.5 at% were prepared by the melt-spinning technique. First, the magnetization isotherms were measured for the amorphous state from 5 to 300 K in magnetic fields up to 9 kOe. For the alloys with 3.7 ≤ x ≤ 18.5, a Pauli susceptibility could easily be deduced for the amorphous matrix. For x = 0 and 1.8, nonlinear magnetization curves were obtained which could not be saturated up to 9 kOe; however, based on previous 11B NMR and magnetization studies on another amorphous Ni81.5B18.5 alloy, these two alloys are also considered to be Pauli paramagnetic. Second, the magnetic susceptibility in 17 kOe magnetic field was measured as a function of temperature from 300 to 1600 K yielding crystallization temperatures of the amorphous alloys and the susceptibilities of the liquid state. These latter values were in good agreement with the Pauli susceptibilities of the amorphous state. Based on these data and on the results of previous low-temperature specific heat studies on the same alloys, the electronic structure of these metallic glasses is discussed.

Original languageEnglish
Pages (from-to)47-53
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Issue number1
Publication statusPublished - Aug 1 1987

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Bakonyi, I., Ebert, H., Socher, W., Voitländer, J., Wachtel, E., Willmann, N., & Predel, B. (1987). Magnetic properties of amorphous and liquid Ni-P-B alloys. Journal of Magnetism and Magnetic Materials, 68(1), 47-53.