U.S.-Czech Materials Research on Strongly Correlated Electrons Under Multi-Extreme Conditions

INT 9722777 Beyerman 这个美国-加州大学河滨分校的沃德·贝耶曼和布拉格查尔斯大学的弗拉基米尔·谢霍夫斯基之间的捷克研究项目将研究强关联电子系统在以下条件下的磁、热、输运和内聚性质：1）极低温度的多极端条件，2）极高磁场，3）高压。 将获得的实验数据进行比较，理论从头计算的电子结构计算，占电子结构和材料参数的具体功能。 研究人员打算集中研究各种外部参数对选定的4f和5 f窄带金属间化合物的影响。 结果预计将有助于我们理解一个复杂的层次的相互作用和它们在不同的现象，包括：重费米子行为，价混合，非费米液体标度，弱磁序，带变磁性，巨大的各向异性和巨磁阻的作用。 这些新知识可能允许设计用于催化和制冷的新材料。 该材料研究项目通过使美国和中欧的领先专家能够在共同感兴趣和能力的领域联合收割机互补人才和汇集研究资源，实现了推进基础科学知识的计划目标。 ??

INT 9722777 Beyerman This U.S.-Czech research project between Ward Beyerman of the University of California-Riverside and Vladimir Sechovsky of Charles University, Prague, will examine magnetic, thermal, transport, and cohesive properties of strongly correlated electron systems under: 1) multi-extreme conditions of very low temperatures, 2) very high magnetic fields, and 3) high pressures. The experimental data obtained will be compared to theoretical ab initio electron structure calculations which account for specific features of the electron structure and material parameters. The researchers intend to concentrate on the influence of various external parameters in selected 4f- and 5f- narrow-band intermetallic compounds. Results are expected to contribute to our understanding of a complex hierarchy of interactions and their role in different phenomena including: heavy fermion behavior, valance mixing, non-Fermi liquid scaling, weak magnetic order, band metamagnetism, huge anisotropy and giant magnetoresistance. Such new knowledge may permit the design of novel materials useful in catalysis and refrigeration. This project in materials research fulfills the program objectives of advancing basic scientific knowledge by enabling leading experts in the United States and Central Europe to combine complementary talents and pool research resources in areas of mutual interest and competence. ??