Ferromagnetic Insulators for Spin-Polarized Electron Tunneling Studies

用于自旋极化电子隧道研究的铁磁绝缘体

• 批准号: 8822744
• 负责人: Robert Meservey
• 金额: $ 24.37万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-15 至 1993-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8822744&HistoricalAwards=false
• 关键词: Ferromagnetic; Insulators; Spin; Polarized; Electron

They will (1) study the systematics of EuS and other ferromagnetic insulators in contact with metals and as tunnel barriers of thin film tunnel junctions; (2) use the new technique, which allows for the first time tunneling measurements of spin-orbit and Fermi-liquid effects in many metals; (3) look for spin effects in heavy-electron and high temperature superconductors; (4) study the exchange effects with ferromagnetic metals, magnetic domains, and magnetic effects at surfaces for H = 0 to 30 T. This program will (1) give an understanding of exchange effects between ferromagnetic insulators and superconductors, ferromagnetic metals, and paramagnetic metals; (2) give a quantitative picture of electron tunneling through ferromagnetic insulators; (3) permit new measurements giving fundamental results in superconductivity, ferromagnetism, and electron-spin effects in normal metals.

他们将（1）研究EuS的系统学和其他 与金属接触并用作隧道的铁磁绝缘体 薄膜隧道结的势垒;（2）使用新的 技术，首次允许隧道测量 （3）在许多金属中的自旋轨道和费米液体效应; 对于重电子和高温下的自旋效应 超导体;（4）研究交换效应， 铁磁金属、磁畴和磁效应. 表面H = 0至30 T。 该程序将（1）给出一个 铁磁物质之间的交换效应 绝缘体和超导体，铁磁金属，以及 顺磁性金属;（2）给出了电子的定量图像 隧道穿过铁磁绝缘体;（3）允许新的 测量给出了超导性的基本结果， 铁磁性和普通金属中的电子自旋效应。