U.S.-Finland Cooperative Research: Angle Resolved Photoemission Studies of High-Tec Superconductors

该奖项支持芝加哥伊利诺伊大学的Juan Carlos Campuzano教授和东北大学的Arun Bansil教授与芬兰坦佩雷理工大学物理系的M. Lindroos和M. Pessa教授在材料研究方面的合作。他们将开展一个联合理论和实验项目，通过角分辨光电发射光谱研究高tc超导体的电子结构。他们的研究建立在过去高效合作的基础上，这证明了他们互补的理论和实验专业知识的协同效应。随着人们对超导化合物角分辨光发射研究的兴趣日益浓厚，需要得到相应的理论强度。该研究将比较实验光谱与光发射强度的第一性原理预测，以获得重要的新信息，并进一步了解新的超导体的电子结构。结果还有助于确定传统能带理论图像在多大程度上可以用来描述新材料的正常状态电子结构。

This award supports Professors Juan Carlos Campuzano of the University of Illinois at Chicago and Arun Bansil of Northeastern University, to collaborate in materials research with Professors M. Lindroos and M. Pessa of the Physics Department of Tampere University of Technology, Finland. They will carry out a joint theoretical and experimental program to investigate the electronic structure of the high-Tc superconductors via angle-resolved photoemission spectroscopy. Their research builds on the basis of highly productive past collaboration that has demonstrated the synergistic effect of their complementary theoretical and experimental expertise. With the increasing interest in angle-resolved photoemission studies of superconducting compounds, there is a need to obtain corresponding theoretical intensities. The proposed research will compare experimental spectra to first-principles predictions of the photoemission intensities in order to obtain significant new information and further understanding of the electronic structure of the new superconductors. Results should also help to establish the extent to which the conventional band theory picture can be used to describe the normal state electronic structure of the new materials.