Simple two-pulse time-reversal sequence for dipolar and quadrupolar-coupled spin systems

P. Bilski, A. M. Panich, N. A. Sergeev, J. Wasicki

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A simple two-pulse magic sequence (2n+1) ·90°y - Acq(t), where n is an integer, which yields the inversion of the signs of dipolar and quadrupole Hamiltonians and the reverse of the time evolutions was discussed. The process resulted in refocusing of the spin magnetizaiton into magic echo at te=t1÷2 after the second pulse, where t1 is the length of the first pulse. The results of Li NMR echo measurements in powder LiInSe2 applying the pulse sequence were also presented were also presented. The analysis showed that the crystal structure of LiInSe2 belonged to the orthorhombic symmetry.

Original languageEnglish
Pages (from-to)76-79
Number of pages4
JournalSolid State Nuclear Magnetic Resonance
Volume25
Issue number1-3
DOIs
StatePublished - 1 Jan 2004

Keywords

  • Dipolar and quadrupolar interactions
  • Finite width RF pulses
  • Spin-echoes

ASJC Scopus subject areas

  • Radiation
  • Chemistry (all)
  • Nuclear and High Energy Physics
  • Instrumentation

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