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Molecular quantum materials: electronic phases and charge dynamics in two-dimensional organic solids
Advances in Physics ( IF 23.750 ) Pub Date : 2020-01-02 , DOI: 10.1080/00018732.2020.1837833
Martin Dressel 1 , Silvia Tomić 2
Affiliation  

This review provides a perspective on recent developments and their implications for our understanding of novel quantum phenomena in the physics of two-dimensional organic solids. We concentrate on the phase transitions and collective response in the charge sector, the importance of coupling of electronic and lattice degrees of freedom and stress an intriguing role of disorder. After a brief introduction to low-dimensional organic solids and their crystallographic structures, we focus on the dimensionality and interactions and emergent quantum phenomena. Important topics of current research in organic matter with sizeable electronic correlations are Mott metal-insulator phase transitions, charge order and ferroelectricity. Highly frustrated two-dimensional systems are established model compounds for studying the quantum spin liquid state and the competition with magnetic long-range order. There are also unique examples of quantum disordered state of magnetic and electric dipoles. Representative experimental results are complemented by current theoretical approaches.

中文翻译:

分子量子材料:二维有机固体中的电子相和电荷动力学

这篇综述提供了一个关于近期发展的观点及其对我们理解二维有机固体物理学中新量子现象的影响。我们专注于电荷部门的相变和集体响应,电子和晶格自由度耦合的重要性,并强调无序的有趣作用。在简要介绍了低维有机固体及其晶体结构之后,我们将重点关注维数和相互作用以及涌现的量子现象。当前对具有相当大电子关联性的有机物质研究的重要课题是莫特金属-绝缘体相变、电荷顺序和铁电性。高度受挫的二维系统是建立模型化合物,用于研究量子自旋液态和与磁性长程有序的竞争。也有磁偶极子和电偶极子的量子无序状态的独特例子。当前的理论方法补充了代表性的实验结果。
更新日期:2020-01-02
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