Resonance Frequency and NMR Relaxation Times in Two Inequivalent 133Cs in Cs2CuBr4 and Cs2ZnBr4 Single Crystals

被引：2

作者：

Lim, Ae Ran ^{[1
,2
]}

机构：

[1] Jeonju Univ, Analyt Lab Adv Ferroelect Crystals, Jeonju 55069, South Korea

[2] Jeonju Univ, Dept Sci Educ, Jeonju 55069, South Korea

来源：

APPLIED MAGNETIC RESONANCE | 2017年 / 48卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

SPIN-LATTICE-RELAXATION; NUCLEAR-MAGNETIC-RESONANCE; ANTIFERROMAGNET CS2CUBR4; EXCHANGE; CS(II);

D O I：

10.1007/s00723-017-0911-z

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The resonance frequencies and relaxation mechanisms of Cs2CuBr4 and Cs2ZnBr4 were examined by static nuclear magnetic resonance (NMR) method. Here, the two inequivalent Cs(1) and Cs(2) sites surrounded by Br ions were distinguished. The saturation recovery traces for Cs-133 nuclei in Cs2CuBr4 with the paramagnetic ions, and those in Cs2ZnBr4 without the paramagnetic ions were each fitted by four exponential functions. From these results, the spin-lattice relaxation times T-1 in the laboratory frame of Cs-133 nuclei in the two crystals were obtained, and Cs(1) surrounded by 11 bromide ions has a longer relaxation time than Cs(2) surrounded by 9 bromide ions.

引用

页码：889 / 899

页数：11

共 50 条

[1] Resonance Frequency and NMR Relaxation Times in Two Inequivalent 133Cs in Cs2CuBr4 and Cs2ZnBr4 Single Crystals
Ae Ran Lim
Applied Magnetic Resonance, 2017, 48 : 889 - 899
[2] Nuclear magnetic relaxation Of 133Cs of distorted triangular antiferromagnet Cs2CuBr4
Fujii, Y.
Hashimoto, H.
Yasuda, Y.
Kikuchi, H.
Chiba, M.
Matsubara, S.
Takigawa, M.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) : E409 - E411
[3] Commensurate and incommensurate phases of the distorted triangular antiferromagnet Cs2CuBr4 studied using 133Cs NMR
Fujii, Y.
Hashimoto, H.
Yasuda, Y.
Kikuchi, H.
Chiba, M.
Matsubara, S.
Takigawa, M.
JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (14)
[4] CRYSTAL SPECTRUM OF CS2CUBR4
KARIPIDES, AG
PIPER, TS
INORGANIC CHEMISTRY, 1962, 1 (04) : 970 - &
[5] Magnetization plateaux of Cs2CuBr4
Miyahara, S.
Ogino, K.
Furukawa, N.
PHYSICA B-CONDENSED MATTER, 2006, 378-80 (587-588) : 587 - 588
[6] Studies on 133Cs NMR spectra and spin-lattice relaxation times in incommensurate Cs2HgCl4
Suzuki, K
Ishimaru, S
Ikeda, R
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (03) : 729 - 733
[7] A 133Cs NMR spin-lattice relaxation study in incommensurate Cs2CdI4
Suzuki, K
Ishimaru, S
Ikeda, R
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 2000, 55 (1-2): : 339 - 342
[8] BR-81 NQR STUDIES ON CS2ZNBR4 AND CS2HGBR4
PLESKO, S
KIND, R
AREND, H
HELVETICA PHYSICA ACTA, 1980, 53 (02): : 242 - 242
[9] CsBr—Cs2ZnBr4—Cs2CdBr4—Cs2HgBr4 Four-component system
I. Ya. Zaitseva
I. S. Kovaleva
V. A. Fedorov
Russian Journal of Inorganic Chemistry, 2010, 55 : 261 - 268
[10] Phonon processes and the spin-lattice relaxation of two inequivalent Cs sites in Cs2CuCl4 and Cs2CoCl4 single crystals
Lim, AR
Jung, JK
SOLID STATE COMMUNICATIONS, 2004, 132 (06) : 393 - 398

← 1 2 3 4 5 →