Electronic Properties of Transition Metal Oxides

这项个人研究人员奖将资助重点研究选定的铜氧化物超导体和层状锰氧化物的高质量单晶的面内和面外正常态电导的研究。实验项目的重点将放在铜酸盐的正常态电导在相图上的转变上，这包括绝缘、欠掺杂和过度掺杂三种状态。将对获得的电输运和磁化数据进行分析，以获得有关传导机制的信息。层状锰氧化物具有丰富的相图，其中包括几个相变。这些热力学相变对电荷输运有很大的影响。锰氧化物的研究重点将放在热力学相变对电导的影响上。这项研究有望极大地提高我们对铜酸盐和锰氧化物电学行为的基本理解。更广泛地说，这项基础调查的结果可能会为适当的掺杂方案提供洞察，以促进铜酸盐和锰氧化物在电子传感器和设备(如磁场传感器甚至计算机逻辑设备)中的应用。这一高度跨学科的项目将有助于教育和培训博士生和本科生，以及参与合作的机构的博士后研究人员。参加这项研究计划的参与者所获得的多样化的专业知识是当今以知识为基础、技术驱动的经济中的一个重大优势，对未来在工业、政府或学术界的职业生涯是有益的。这个个人研究人员奖将资助一个实验研究项目，以研究高温超导体和层状锰氧化物的不寻常的电学性质。即使在正常状态下，高温超导体的导电方式也与铜和硅等典型的电导体非常不同。此外，锰氧化物的导电性受到热力学相变的强烈影响。这项拟议的研究有望极大地增强我们对铜酸盐和锰氧化物电学行为的基本理解。阐明这些新的电学行为可能有助于这些材料最终应用于电子传感器和设备，如磁场传感器，甚至计算机逻辑设备。该项目为跨学科项目中的研究生提供了极好的研究和教育机会。它涉及少数群体的研究生，他们从事论文研究，并接受对未来在工业、政府或学术界的职业有益的优秀培训。***

This individual investigator award will fund research focused on studies of the in-plane and out-of-plane normal-state electrical conduction of high quality single crystals of selected copper-oxide superconductors and layered manganites. The emphasis of the experimental project on the cuprates will be on the transformation of their normal-state conduction across the phase diagram which includes insulating, under-doped, and over-doped regimes. The electrical transport and magnetization data obtained will be analyzed for information about conduction mechanisms. Layered manganites have a rich phase diagram which includes several phase transitions. These thermodynamic phase transitions have a strong effect on the charge transport. The emphasis of the manganite research will be on the effect of thermodynamic phase transitions on the electrical conduction. The research is expected to significantly enhance our fundamental understanding of the electrical behaviors of cuprates and manganites. More broadly, the results from this basic investigation may provide insight into appropriate doping schemes to facilitate applications of cuprates and manganites for electronic sensors and devices such as magnetic field sensors or even computer logic devices. This highly interdisciplinary project will contribute to the education and training of doctoral and undergraduate students, as well as postdoctoral researchers at the institutions which are part of the collaboration. The diversity of expertise gained by the participants in this research program is a substantial advantage in today's knowledge based, technology driven economy, being beneficial to a future career in industry, government, or academia.%%%This individual investigator award will fund an experimental research project to study the unusual electrical properties of high temperature superconductors and layered manganites. The high temperature superconductors, even in the normal state, conduct electricity in ways that are very different from typical electrical conductors such as copper and silicon. Also, the conduction of electricity in manganites is strongly affected by thermodynamic phase transitions. The proposed research is expected to significantly enhance our fundamental understanding of the electrical behaviors of cuprates and manganites. Clarifying these novel electrical behaviors may contribute to eventual applications of these materials for electronic sensors and devices such as magnetic field sensors or even computer logic devices. This project offers excellent research and education opportunities for graduate students within an interdisciplinary program. It involves minority-group graduate students who pursue thesis research and receive excellent training beneficial to a future career in industry, government, or academia. ***