U.S.-Chile Cooperative Research: Onset of Superconductivity in Large Magnetic Fields

这项美国-阿根廷的提案请求支持布隆明顿印第安纳大学的Peter Sternberg博士与圣地亚哥智利大学的Manuel Del Pino博士和Patricio Felmer博士合作，研究大磁场中超导电性的开始。这个项目是对大磁场中超导电性成核的研究的继续。首席研究人员将使用Ginzburg-Landau能量作为模型，专注于他们的目标，即描述(非零)序参数的行为，该参数的出现表明一旦温度下降到临界值以上，所谓的“正常状态”就会失去稳定性。他们寻求关于临界温度/磁场曲线的准确信息，以便提供一种理论来支持近年来为捕捉这种关系而进行的许多实验努力。该项目将描述具有涡旋晶格结构的状态(无界样本)和位于样本边界高曲率部分附近的状态(有界样本)。

This US-Argentina proposal requests support for Dr. Peter Sternberg of Indiana University on Bloomington to collaborate with Drs. Manuel Del Pino and Patricio Felmer at the University of Chile in Santiago on the onset of superconductivity in large magnetic fields.This project is a continuation of an investigation of the nucleation of superconductivity in the presence of large applied magnetic fields. The Principal Investigators will use the Ginzburg-Landau energy as a model to focus on their goal of describing the behavior of the (non-zero) order parameter whose emergence signals the loss of stability of the so-called "normal state" once the temperature decreases beyond a critical value. They seek precise information about the critical temperature/magnetic field curve in order to provide a theory to support the many experimental efforts underway in recent years to capture this relationship. The project will describe states possessing vortex lattice structure (unbounded samples) and states localized about high-curvature sections of the sample boundary (bounded samples).