Spin dynamics in the S = 1/2 antiferromagnetic chain compounds δ-(EDT-TTF-CONMe_2)_2X (X=AsF_6,Br): A multifrequency electron spin resonance study

Balint Nafradi; Areta Olariu; Laszlo Forro; Cecile Meziere; Patrick Batail; Andras Janossy

首页> 外文期刊>Physical review >Spin dynamics in the S = 1/2 antiferromagnetic chain compounds δ-(EDT-TTF-CONMe_2)_2X (X=AsF_6,Br): A multifrequency electron spin resonance study

【24h】

Spin dynamics in the S = 1/2 antiferromagnetic chain compounds δ-(EDT-TTF-CONMe_2)_2X (X=AsF_6,Br): A multifrequency electron spin resonance study

机译：S = 1/2反铁磁链化合物δ-（EDT-TTF-CONMe_2）_2X（X = AsF_6，Br）中的自旋动力学：多频电子自旋共振研究

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

We present a multifrequency electron spin resonance study in the range of 4-420 GHz of the quasi-one-dimensional, nondimerized, quarter-filled Mott insulators, δ-(EDT-TTF-CONMe_2)_2-X (X=AsF_6,Br). In the high-temperature orthorhombic phase above T～ 190 K, the magnitude and the temperature dependence of the high-temperature spin susceptibility are described by a S=1/2 Heisenberg antiferromagnetic chain with J_(AsF_6) =298 K and J_(Br)=474 K coupling constants for X=AsF_6 and Br, respectively. We estimate from the temperature dependence of the linewidth (ΔH) an exchange anisotropy, J' /J of ～2 × 10~(-2). The frequency dependence of ΔH and the g shift have an unusual quadratic dependence in all crystallographic orientations that we attribute to an antisymmetric exchange (Dzyaloshinskii-Moriya) interaction.

机译：我们提出了在一个准一维，非二元，四分之一填充的Mott绝缘子δ-（EDT-TTF-CONMe_2）_2-X（X = AsF_6，Br）在4-420 GHz范围内的多频电子自旋共振研究）。在T〜190 K以上的高温斜方晶相中，高温自旋磁化率的大小和温度依赖性由S = 1/2的海森堡反铁磁链描述，J_（AsF_6）= 298 K，J_（Br ）= 474 K耦合常数，分别用于X = AsF_6和Br。我们根据线宽（ΔH）的温度依赖性估计交换各向异性，J'/ J为〜2×10〜（-2）。 ΔH的频率依赖性和g偏移在所有晶体学取向上都具有不寻常的二次依赖性，我们将其归因于反对称交换（Dzyaloshinskii-Moriya）相互作用。

著录项

来源
《Physical review》 |2010年第22期|P.224438.1-224438.6|共6页
作者
Balint Nafradi; Areta Olariu; Laszlo Forro; Cecile Meziere; Patrick Batail; Andras Janossy;
展开▼
作者单位

Institute of Condensed Matter Physics, FBS, Swiss Federal Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany;

rnInstitute of Condensed Matter Physics, FBS, Swiss Federal Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland;

rnInstitute of Condensed Matter Physics, FBS, Swiss Federal Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland;

rnLaboratoire de Chimie et Ingenierie Moleculaire d'Angers, CNRS-Universite d'Angers, F-49045-Angers, France;

rnLaboratoire de Chimie et Ingenierie Moleculaire d'Angers, CNRS-Universite d'Angers, F-49045-Angers, France;

rnInstitute of Physics, Condensed Matter Research Group of the Hungarian Academy of Sciences,Budapest University of Technology and Economics, P.O. Box 91, H-1521 Budapest, Hungary;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
spin chain models; electron paramagnetic resonance and relaxation;

机译：自旋链模型;电子顺磁共振和弛豫;

相似文献

外文文献
中文文献
专利

1. Coherent spin dynamics of solitons in the organic spin chain compounds (o-DMTTF)_2X (X=Cl, Br) [J] . Zeisner J., Pilone O., Soriano L., Physical review . 2019,第22期

机译：有机旋转链化合物（O-DMTTF）_2x（x = CL，BR）中孤子的相干旋转动力学
2. Multifrequency Electron Spin Resonance Study of the Dynamics of Spin Labeled T4 Lysozyme [J] . Ziwei Zhang, Mark R. Fleissner, Dmitriy S. Tipikin The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2010,第16期

机译：自旋标记的T4溶菌酶动力学的多频电子自旋共振研究
3. Anisotropic magnetic interactions and spin dynamics in the spin-chain compound Cu(py)_2Br_2:An experimental and theoretical study [J] . J. Zeisner, M. Brockmann, S. Zimmermann, Physical Review. B, Condensed Matter . 2017,第2期

机译：自旋链化合物Cu（py）_2Br_2中的各向异性磁相互作用和自旋动力学：实验和理论研究
4. ESR studies of a spin-1/2 ferromagnetic-ferromagnetic-antiferromagnetic-antiferromagnetic tetramer chain [C] . Masayuki Hagiwara Asia Pacific Electron Paramagnetic Resonance/Electron Spin Resonance Symposium . 2002

机译：旋转1/2铁磁 - 铁磁 - 反铁磁性四聚体链的ESR研究
5. Electron spin resonance imaging and in-vivo electron spin resonance studies of biological and nonbiological systems. [D] . Wan, Xiaoming. 1989

机译：生物和非生物系统的电子自旋共振成像和体内电子自旋共振研究。
6. A Multifrequency Electron Spin Resonance Study of the Dynamics of Spin Labeled T4 Lysozyme [O] . Ziwei Zhang, Mark R. Fleissner, Dmitriy Tipikin, -1

机译：旋转T4溶菌酶动力学的多频电子旋转共振研究
7. Spin dynamics in S = 1/2 antiferromagnetic chain compounds delta-(EDT-TTF-CONMe_2)_2X (X=AsF_6, Br): a multi-frequency Electron Spin Resonance study [O] . Náfrádi, Bálint, Olariu, Areta, Forró, László, 2010

机译：s = 1/2反铁磁链化合物中的自旋动力学 δ-（EDT-TTF-CONme_2）_2X（X = asF_6，Br）：多频电子自旋共振研究
8. Characterizing the Dynamic Response of the Estrogen Receptor to Agonists and Antagonists by Multifrequency Electron Spin Resonance Spin- Labeling [R] . Budil, D. E. 2009

机译：通过多频电子自旋共振自旋标记表征雌激素受体对激动剂和拮抗剂的动态响应

Spin dynamics in the S = 1/2 antiferromagnetic chain compounds δ-(EDT-TTF-CONMe_2)_2X (X=AsF_6,Br): A multifrequency electron spin resonance study

摘要

著录项

相似文献

相关主题

期刊订阅