Statics and dynamics of the modulation in incommensurate Rb2ZnBr4 as detected by NMR

被引：3

作者：

Decker, F

Petersson, J

Michel, D

机构：

[1] Univ Saarlandes, Fachbereich Phys 10 3, D-66041 Saarbrucken, Germany

[2] Univ Leipzig, Fak Phys & Geowissensch, D-7010 Leipzig, Germany

来源：

APPLIED MAGNETIC RESONANCE | 1999年 / 17卷 / 2-3期

关键词：

D O I：

10.1007/BF03162174

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 dynamics of the incommensurate modulation of Rb2ZnBr4 is investigated near the transition to the normal high-temperature phase using first-order quadrupole effects in nuclear magnetic resonance (NMR). Rb-87 NMR spectra and two-dimensional Rb-87 NMR exchange spectra are reported. All results can be described consistently in terms of a static modulation in the incommensurate phase without any indication for "floating" or large-scale fluctuations of the modulation wave. The spectra taken about 135 K below T-i in the lower incommensurate phase well above the soliton regime show no indication for the existence of a higher-order commensurate modulation in Rb2ZnBr4.

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页码：399 / 411

页数：13

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[21] SOLITON DENSITY IN RB2ZNBR4 [J].

BLINC, R ;

RUTAR, V ;

TOPIC, B ;

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PHYSICAL REVIEW B, 1986, 33 (03) :1721-1726

[22] DIRECT OBSERVATION OF THE INCOMMENSURATE SUPERLATTICE OF RB2ZNBR4 BY TRANSMISSION ELECTRON-MICROSCOPY [J].

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JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (08) :L1299-L1300

[23] DIRECT OBSERVATION OF THE INCOMMENSURATE SUPERLATTICE OF Rb2ZnBr4 BY TRANSMISSION ELECTRON MICROSCOPY. [J].

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[24] Critical statics and dynamics of the one-dimensionally incommensurately modulated crystal Rb2ZnBr4 studied by NMR -: art. no. 014110 [J].

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Irsch, M ;

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[25] A MODEL CALCULATION OF EFG TENSOR MODULATION IN RB2ZNBR4 ISOMORPHS [J].

PIRNAT, J ;

LUZNIK, J ;

TRONTELJ, Z .

FERROELECTRICS, 1984, 53 (1-4) :331-331

[26] NEUTRON-SCATTERING STUDY OF INCOMMENSURATE PHASE-TRANSITION OF RB2ZNBR4 [J].

DEPATER, CJ ;

VANDIJK, C .

PHYSICAL REVIEW B, 1978, 18 (03) :1281-1293

[27] Neutron scattering phase study of the normal-incommensurate transition in Rb2ZnBr4 [J].

Shigematsu, H ;

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Takesada, M ;

Ohshima, K ;

Oohara, Y ;

Matsui, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (09) :2905-2909

[28] 2ND-ORDER QUADRUPOLE SHIFT IN THE INCOMMENSURATE STRUCTURES OF RB2ZNBR4 AND RB2ZNCL4 [J].

ALEKSANDROVA, IP ;

GRANDE, S ;

MOSKVICH, YN ;

KRIEGER, AI ;

KOPTSIK, VA .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1983, 115 (02) :603-613

[29] OPTICAL BIREFRINGENCE STUDY OF RB2ZNBR4 [J].

KUSTO, WJ ;

STRUIKMANS, R ;

WILLEMSEN, B .

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[30] IDENTIFICATION OF SATELLITE FACES ON SINGLE-CRYSTALS OF THE INCOMMENSURATE STRUCTURES RB2ZNBR4 AND RB2ZNCL4 [J].

JANNER, A ;

RASING, T ;

BENNEMA, P ;

LINDEN, WHVD .

PHYSICAL REVIEW LETTERS, 1980, 45 (21) :1700-1702

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