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

美国-智利合作研究：大磁场中超导性的开始

• 批准号: 0071882
• 负责人: Peter Sternberg
• 金额: $ 0.29万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0071882&HistoricalAwards=false
• 关键词: U.S.; Chile; Cooperative; Research; Onset

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).

这项美国-阿根廷提案要求支持印第安纳大学布卢明顿分校的彼得·斯滕伯格博士与布卢明顿分校的彼得·斯滕伯格博士合作。Manuel Del Pino和Patricio Felmer在圣地亚哥智利大学研究了大磁场中超导性的发生。这个项目是在大外加磁场下超导成核研究的延续。主要研究人员将使用金兹堡-朗道能量作为模型，专注于描述（非零）阶参数的行为，该参数的出现标志着一旦温度下降超过临界值，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，以便为近年来正在进行的许多捕捉这种关系的实验努力提供理论支持。该项目将描述具有涡晶格结构的状态（无界样本）和在样本边界的高曲率部分局部化的状态（有界样本）。