31P nuclear magnetic resonance Knight shift and linewidth in Ni3P and Cu3P: A magic-angle spinning study

I. Furo, I. Bakonyi, K. Tompa, E. Zsoldos, I. Heinmaa, M. Alla, E. Lippmaa

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Abstract

Accurate measurements of small 31P Knight shift effects in crystalline Ni3P and Cu3P alloys have been performed by using a magic-angle spinning (MAS) nuclear magnetic resonance (NMR) technique. Both the average Knight shift and the width of its distribution have been found to be different when comparing a normal (equilibrium) and a melt-quenched Ni3P alloy and this is attributed to possible differences in defect concentration and grain size. The 31P NMR line shift of Cu 3P is much smaller (K=0.012%) than that of Ni3P (K=0.179%) but spin-lattice relaxation time measurements indicated a Korringa-type relaxation mechanism for both alloys, i.e. Cu3P has also a metallic character.

Original languageEnglish
Article number018
Pages (from-to)4217-4225
Number of pages9
JournalJournal of Physics: Condensed Matter
Volume2
Issue number18
DOIs
Publication statusPublished - Dec 1 1990

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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