CHLORINE-NUCLEAR-QUADRUPOLE-RESONANCE STUDY OF THE NEUTRAL-TO-IONIC TRANSITION IN TETRATHIAFULVALENE-CHLORANIL

被引：23

作者：

GALLIER, J ^{[1
]}

TOUDIC, B ^{[1
]}

DELUGEARD, Y ^{[1
]}

CAILLEAU, H ^{[1
]}

GOURDJI, M ^{[1
]}

PENEAU, A ^{[1
]}

GUIBE, L ^{[1
]}

机构：

[1] UNIV PARIS 11,INST ELECTR FONDAMENTALE,F-91405 ORSAY,FRANCE

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.47.11688

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature dependence of the chlorine-35 nuclear-quadrupole-resonance (NQR) parameters as been studied in the mixed-stack charge-transfer complex tetrathiafulvalene-chloranil and discussed with reference to spectroscopic and neutron-diffraction results. The NQR spectrum changes conspicuously at the neutral-to-ionic transition temperature, T(N-I) = 79.2 K. The changes have been analyzed in terms of the symmetry breaking occurring at the transition. Below, coexistence of the neutral and ionic phases has been observed down to the limit of metastability of the neutral phase (T(c) approximately 69 K). Spin-lattice relaxation rates reveal the existence of highly anisotropic critical fluctuations with a predominantly one-dimensional character.

引用

页码：11688 / 11695

页数：8

共 58 条

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