U.S.-Argentina Cooperative Research on Joint Research on Basic Properties of Superconductors

该奖项支持一个关于高温超导体的合作研究项目，该项目将由加州大学戴维斯分校的赫尔曼·芬克教授和阿根廷巴里洛什原子中心的两名研究人员进行：固态理论小组的Arturo Lopez-Davalos博士，以及低温实验室的弗朗西斯科·德拉克鲁兹博士。他们将研究高温超导体的性质，以及超导微网的磁性和临界电流性质。在理论方面，他们将研究在基本的金兹堡-朗道方程中包含小相干长度(相干电子对是超导的基础)的影响。鉴于自发现氮温超导以来世界范围内产生的实验结果的爆炸性，迫切需要这样的理论解释。此外，他们还将研究梯形网络和正方形晶格阵列的磁特性和临界电流(这些材料最严重的限制是低临界电流)。巴里洛什在超导方面的工作是高质量的，与芬克教授的合作将加强这一努力。阿根廷小组在超导体的性质方面带来了丰富的经验，并为这一领域的文献做出了许多贡献。以前的协作工作卓有成效。

This award supports a cooperative research project on high-temperature superconductors to be conducted by Prof. Herman Fink of the University of California at Davis and two researchers at the Atomic Center in Bariloche, Argentina: Dr. Arturo Lopez-Davalos, Solid State Theory Group, and Dr. Francisco De La Cruz of the Low Temperature Laboratory. They will investigate the properties of high-temperature superconductors and the magnetic and critical current properties of superconducting micronetworks. On the theoretical side, they will study the effect of the inclusion of a small coherence length (coherent electron pairs are the basis for superconductivity) in the fundamental Ginzburg-Landau equations. Such theoretical interpretation is urgently needed in view of the explosion in experimental results produced world-wide since the discovery of nitrogen-temperature superconductivity. In addition, they will study the magnetic properties and the critical currents (the most severe limitation of these materials is low critical current) of ladder networks and square lattice arrays. The work on superconductivity at Bariloche is of high quality and the collaboration with Prof. Fink will strengthen that effort. The Argentinian group brings vast experience in the properties of superconductors and has made many contributions to the literature in this field. Previous collaborative work has been highly productive.