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; 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布卢明顿印第安纳大学的彼得·斯特恩伯格博士与Drs合作。大型磁场的超导性发作，圣地亚哥大学的曼努埃尔·德尔·皮诺（Manuel del Pino）和帕特里奥·费尔默（Patricio Felmer）。在大型施加磁场的情况下，该项目持续研究了超导性的成核。 主要研究人员将使用金茨堡 - 兰道能量作为模型，以关注其描述（非零）顺序参数的行为的目标，一旦温度降低了临界值，其出现标志着所谓的“正常状态”的稳定性丧失。 他们寻求有关临界温度/磁场曲线的精确信息，以提供一种理论，以支持近年来捕获这种关系的许多实验努力。 该项目将描述具有涡旋晶格结构（无界样品）的状态，并围绕样品边界的高曲率切片（有界样品）进行定位。