Non-exponential behavior of the nuclear magnetization in H-doped copper oxides

E. M. Kunoff, S. D. Goren, C. Korn, Z. Gavra, J. R. Johnson, J. J. Reilly

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Measurement of the spin lattice relaxation time in H-doped Y2BaCuO5 and YBa2Cu3O6 has revealed a power law growth of the nuclear magnetization M for short times following a saturation pulse sequence. Preliminary experimental results yield exponents of 1 2 and 1 3, depending on the amount of hydrogen present in the sample. We extend Blumberg's theory for relaxation due to paramagnetic centers via dipole-dipole interaction in the absence of spin diffusion to obtain M ∼ tD/6 where D is the dimensionality of the system. This yields exponents of 1 2 and 1 3 for three- and two-dimensional systems, respectively. At long times the magnetization growth becomes exponential.

Original languageEnglish
Pages (from-to)23-27
Number of pages5
JournalSolid State Nuclear Magnetic Resonance
Issue number1
StatePublished - 1 Jan 1994


  • H-doped copperoxides
  • dimensionality in spin lattice relaxation
  • paramagnetism

ASJC Scopus subject areas

  • Radiation
  • General Chemistry
  • Nuclear and High Energy Physics
  • Instrumentation


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