NUCLEAR SPIN-LATTICE RELAXATION AND ELECTRIC FIELD GRADIENT IN LIQUID INDIUM.

Abstract

The nuclear spin lattice relaxation rate is measured in the temperature range 130 to 300 C, and is found to be expressed by the relation 1/T sub 1 = (1.98 + 0/0082T) x 1000/sec. The two terms are attributable respectively to the quadrupole interaction and the magnetic hyperfine coupling. The latter is expected to be linear in the absolute temperature, and its magnitude a corresponds to the expected Korringa value. A model is constructed on the basis of fluctuations about a quasi-bcc lattice, and values of the rms field gradient (q sub E = 8.5 x 10 to the 24th power/cu cm) are related to the correlation times (tau sub c = 1.6 x 10 to the -13th power sec) for self diffusion and the related step lengths (delta r = 0.38 A) and the breadth of the x-ray diffraction peaks. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1966
Accession Number
AD0801380

Entities

People

  • E. Geissler
  • E. M. Dickson
  • F. A. Rossini
  • Walter D. Knight

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Couplings
  • Diffraction
  • Diffusion
  • Electric Fields
  • Nuclear Spins
  • Physical Properties
  • Quantum Properties
  • Temperature Gradients
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Materials Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.