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

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

doi:10.1016/j.ssnmr.2003.03.020

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

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 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 t_e=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 language	English
Pages (from-to)	76-79
Number of pages	4
Journal	Solid State Nuclear Magnetic Resonance
Volume	25
Issue number	1-3
DOIs	https://doi.org/10.1016/j.ssnmr.2003.03.020
State	Published - 1 Jan 2004

Keywords

Dipolar and quadrupolar interactions
Finite width RF pulses
Spin-echoes

ASJC Scopus subject areas

Radiation
General Chemistry
Nuclear and High Energy Physics
Instrumentation

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10.1016/j.ssnmr.2003.03.020

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title = "Simple two-pulse time-reversal sequence for dipolar and quadrupolar-coupled spin systems",

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.",

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AU - Bilski, P.

AU - Panich, A. M.

AU - Sergeev, N. A.

AU - Wasicki, J.

PY - 2004/1/1

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N2 - 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.

AB - 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.

KW - Dipolar and quadrupolar interactions

KW - Finite width RF pulses

KW - Spin-echoes

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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