Electronic, Magnetic, and Spectroscopic Properties of Molecular Solids

非技术性有机材料由于碳基化合物的几乎无限组合，为科学和技术进步提供了新的机会。目前的工作探讨了特定的“低维”有机材料的性质，其中导电和磁性现象发生在线性链或二维平面。在这些条件下，有机材料可以表现出重要的物理性质--超导性、电场或磁场中类似晶体管的开关，以及电过程和磁过程可以通信的情况。强大的实验方法，包括中子散射，磁共振，高磁场和静水压力可以用来揭示控制这些材料的电子和磁性结构。所研究的物理系统和所采用的方法的多样性通过与国家高磁场实验室的联系提供了与广泛的科学界的接口。这种灵活性使该组织能够通过科学交流和教育推广计划接待游客，学生和教师。该项目将为有机材料研究开辟新的前景，并将培养学生在先进的技术。技术这项工作探讨了低维有机材料中相互作用的电子和磁性结构的性质。定域自旋链和离域电子传导链之间的相互作用在低温下产生耦合的金属-绝缘体、磁性或超导基态。特别注意的是高磁场，压力或电场产生的基态性质和动力学的电荷和自旋的根本变化的材料。强大的实验方法，包括电输运，磁共振，高磁场和静水压力，揭示了控制这些材料物理的电子和磁性结构。小组的活动，由于两个物理系统的多样性调查和方法，允许通过与国家高磁场实验室协会与更广泛的凝聚态社区的有效接口。这种灵活性允许通过各种科学交流和教育推广计划接待游客，学生和教师。中子散射和光电子发射的高风险试点项目将为分子材料研究开辟新的前景，并将培养学生掌握这些先进技术。

Non-TechnicalOrganic materials present new opportunities for both scientific and technical advances due to a nearly limitless combination of carbon-based compounds. The present work explores the nature of specific "low dimensional" organic materials where the phenomena of electrical conduction and magnetism occur in either linear chains or two-dimensional planes. Under these conditions organic materials can exhibit important physical properties - superconductivity, transistor-like switching in electric or magnetic fields, and situations where electrical and magnetic processes can communicate. Powerful experimental methods including neutron scattering, magnetic resonance, high magnetic fields, and hydrostatic pressure can be used reveal the electronic and magnetic structures that control these materials. The diversity of physical systems investigated and methods employed provide an interface with a broad scientific community through association with the National High Magnetic Field Laboratory. This flexibility allows the group to host visitors, students, and teachers through scientific exchange and educational outreach programs. The project will open new vistas for organic materials studies, and will train students in advanced techniques.TechnicalThis work explores the nature of interacting electronic and magnetic structure in low dimensional organic materials. The interaction between localized spin chains and delocalized electron conducting chains produces coupled metal - insulator, magnetic, or superconducting ground states at low temperatures. Particular attention is given to materials where high magnetic fields, pressure, or electric fields produce fundamental changes in the ground state properties and dynamics of charge and spin. Powerful experimental methods including electrical transport, magnetic resonance, high magnetic fields, and hydrostatic pressure are used reveal the electronic and magnetic structure that controls the physics of these materials. Group activities, due to the diversity of both physical systems investigated and methods employed, allow an effective interface with the broader condensed matter community through association with the National High Magnetic Field Laboratory. This flexibility allows the hosting of visitors, students, and teachers through a variety of scientific exchange and educational outreach programs. High risk pilot projects in neutron scattering and photoemission will open new vistas for molecular materials studies, and will train students in these advanced techniques.