𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The temperature dependence of 133Cs NMR and study of spin–lattice relaxation time in a CsMnCl3 single crystal

✍ Scribed by A.R Lim; S.H Choh; S.-Y Jeong

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
321 KB
Volume
98
Category
Article
ISSN
0167-2738

No coin nor oath required. For personal study only.

✦ Synopsis

The temperature dependence of Cs NMR and the relaxation time in a CsMnCl single crystal have been investigated 3 133 with a pulse NMR spectrometer. The Cs resonances of two different groups were obtained. The quadrupole coupling constant of Cs(I) and Cs(II) in CsMnCl decreases as the temperature increases. Therefore, the temperature dependence of 3 2 e qQ/h is explained with a single torsional frequency of the Cs-Cl couple by means of the simple Bayer theory. Also, the 21 relaxation rates (T ) for Cs(I) and Cs(II) were observed to increase linearly with increasing temperature. The temperature 1 21 21 22 21 dependence of the relaxation time, T , could be fitted by the approximation of (T ) 5 [(8.76 3 10 )T 1 19.37] (s ) 1 1 C s ( I ) 2 1 2 2 2 1 and (T ) 5 [(6.51 3 10 )T 1 13.71] (s ) for Cs(I) and Cs(II), respectively. Therefore, the linear temperature 1 Cs(II)

dependence of the relaxation time may well be accounted for by the direct process of scattering with a single phonon.

📜 SIMILAR VOLUMES

Temperature dependence study of chlorine
Temperature dependence study of chlorine NQR frequency and spin–lattice relaxation time in 2-amino,-3,5-dichloropyridine
✍ Mohammed Hossein Ala Amjadi; K. P. Ramesh; N. Rajendra Kumar; J. Ramakrishna 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 114 KB 👁 2 views

Chlorine-35 NQR frequency and spin-lattice relaxation time measurements as a function of temperature in the range 77-300 K were carried out on 2-amino-3,5-dichloropyridine. Two NQR signals were observed and were assigned to the two chlorines present in the molecule using the additive model for subst

Temperature- and Concentration-Dependenc
Temperature- and Concentration-Dependence of the Spin-Lattice Relaxation Time of Chromium Ions in GASH
✍ Dr. R. Kirmse; B. V. Solovev; V. A. Sakharov; Doz. Dr. B. G. Tarasov 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 382 KB 👁 2 views

## Abstract Investigations of the temperature‐ and concentration dependence of the spin‐lattice relaxation time __T__~1~ in ferroelectric GASH (= Guanidinium aluminium sulfate hexahydrate) single crystals doped with Cr^3+^‐ions are reported. The concentration‐dependence found on the higher concentr

Temperature- and pressure-dependent stud
Temperature- and pressure-dependent study of 35Cl NQR frequency and spin lattice relaxation time in 2,3-dichloroanisole
✍ L. Ramu; K. P. Ramesh; D. Ramananda; R. Chandramani 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 141 KB

## Abstract The temperature and pressure dependence of ^35^Cl NQR frequency and spin lattice relaxation time (__T__~1~) were investigated in 2,3‐dichloroanisole. Two NQR signals were observed throughout the temperature and pressure range studied. __T__~1~ were measured in the temperature range from

Study of activation parameters and NMR s
Study of activation parameters and NMR spin-lattice relaxation time in some substituted amines
✍ Anupam Singh; N.K. Mehrotra 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 153 KB

The present communication reports the experimental values of NMR spin-lattice relaxation time (T 1 ) and dielectric relaxation time (τ) of piperidine, pyrrole, pyridine, diethylamine, triethylamine and pyrrolidine. The values of activation energy (ΔE A ) obtained using dielectric relaxation time, ha