Nuclear magnetic resonance study of the relaxation mechanisms of the 9Be, 27Al, and 29Si nuclei in Cr3+-doped Be3Al2Si6O18 crystals

We have investigated nuclear magnetic resonance of 2 3 Na nucleus in NaMgCl 3 single crystal in the temperature range 200 K~410 K using FT-NMR spectrometer. The spin-lattice relaxation times T 1 of 2 3 Na nucleus residing at cubic symmetry in the host crystal was measured as a function of temperature. The T 1 of 2 3 Na nucleus decreased with increasing temperature. The nuclear spin-lattice relaxation rate 1/T 1 of 2 3 Na in NaMgCl 3 single crystal was proportional to the temperature T. This behavior is explained with the characteristic feature of the direct process between the nuclear spins and single phonon, 1/T 1 being proportional to the absolute temperature. The activation energy calculated was E a = 4.82 J/mol.

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Nuclear magnetic resonance study of the relaxation mechanisms of the 9Be, 27Al, and 29Si nuclei in Cr3+-doped Be3Al2Si6O18 crystals

Cited by 3 publications

References 20 publications

Unified research of the optical and EPR spectral data for the trigonal Cr3+ centers in emerald crystals

Unified research of the optical and EPR spectral data for the trigonal Cr3+ centers in emerald crystals

Local compressibilities of Cr3+ octahedral clusters in the natural and synthetic emerald crystals

Nuclear Magnetic Resonance Study of <sup>23</sup>Na in NaMgCl<sub>3</sub> Single Crystal

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