Hyperfine Interactions of Sm and Co in Sm2Co17

Abstract

The Sm and Co hyperfine fields in Sm2Co17 have been measured at 4.2 K by means of the zero-field NMR spin-echo technique. The Sm resonance shows the existence of the Th2Ni17-type structure with two inequivalent sites for the Sm nucleus having hyperfine fields of 3.40 x 10 (expn 6) and 3.48 x 10 (expn 6) G. It also shows that the effect of the mixing of the excited J = (7/2) level into the ground J = (5/2) multiplet by crystal- and exchange-field effects had a smaller effect on the hyperfine interaction than was expected. The hyperfine fields of the 59Co resonance show a broad distribution from 110 to 220 MHz which we were able to correlate to the number of neighboring Co and Sm atoms surrounding the site in question.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADA126729

Entities

People

  • A. Tauber
  • D. I. Paul
  • E. Potenziani

Organizations

  • Columbia University

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Diffraction
  • Diffraction Analysis
  • Domain Walls
  • Frequency
  • Magnetic Fields
  • Magnetic Materials
  • Magnetic Moments
  • Magnetic Properties
  • Materials
  • Metals
  • New York
  • Quantum Properties
  • Rare Earth Elements
  • Relaxation Time
  • Resonance
  • Spectra

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Materials Science and Engineering.