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

美国和阿根廷的这一提议请求支持布卢明顿的印第安纳州大学的彼得斯滕贝格博士与圣地亚哥的智利大学的曼努埃尔·德尔皮诺和帕特里西奥·费尔默博士合作研究大磁场中超导性的开始。该项目是大外加磁场中超导性成核研究的继续。 主要研究人员将使用Ginzburg-Landau能量作为模型，专注于描述（非零）序参量的行为，一旦温度下降超过临界值，其出现标志着所谓的“正常状态”的稳定性丧失。 他们寻求关于临界温度/磁场曲线的精确信息，以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格结构的状态（无界样本）和位于样本边界高曲率部分的状态（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).