Fullerene-based Conductors and Superconductors

富勒烯基材料的电子和热性能，纯和碱掺杂碳60和碳70，将通过各种传输，结构，机械和隧道测量来检查。在正常和超导状态下，电子声子耦合将通过输运、隧道和碱基和碳基上的同位素替换来研究。载流子浓度和可能的相关诱导的局域效应将利用霍尔测量进行探讨。高压将用于探测作为晶格常数和可变态密度函数的输运性质和超导性。% % % %由所谓的富勒烯形成的新型碳材料的性质将使用各种探针进行探索，包括在大气和高压下通过材料的电和热传输。结构的机械强度将通过弹性测量来确定。不同质量的原子（不同的同位素）将被引入结构中，以帮助理解电子与原子振动之间的相互作用。这种相互作用可能是某些材料具有超导性（零电阻）的原因。＊＊＊

9404755 Zettl The electronic and thermal properties of fullerene-based materials, pure and alkali-doped carbon-60 and carbon-70, will be examined using various transport, structural, mechanical and tunneling measurements. Electron phonon coupling in the normal and superconducting states will be investigated through transport, tunneling, and isotopic replacement on both the alkali and carbon sites. Carrier concentration and possible correlation-induced localization effects will be explored using Hall measurements. High pressures will be applied to probe transport properties and superconductivity as a function of lattice constants and variable density of states. % % % % The properties of novel carbon materials formed from so called fullerenes will be explored using a variety of probes, including transport of electricity and heat through the materials at atmospheric and high pressures. The mechanical strength of the structures will be determined using elasticity measurements. Atoms of different masses (different isotopes) will be introduced in the structures to help understand the interactions between the electrons and the vibrations of the atoms. This interaction may be responsible for some of the materials being superconducting (zero electrical resistance). ***