Colloidal Excitonic Magnetic Polarons for Spin-Based Photonics

用于自旋光子学的胶体激子磁极化子

• 批准号: 1137224
• 负责人: Jillian Dempsey
• 金额: $ 9万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1137224&HistoricalAwards=false
• 关键词: Colloidal; Excitonic; Magnetic; Polarons; Spin

The Division of Chemistry supports Jillian Dempsey of the University of Washington as an American Competitiveness in Chemistry Fellow. Dr. Dempsey will work on synthesizing and characterizing new kinds of magnetic nanoparticles with interesting, long-lived photomagnetic effects. The nanoparticles will be Mn(I)-doped CdSe quantum dots with various shapes and internal structures. The resulting work will help in the development of future spintronics and spin-photonics materials. Dr. Dempsey will collaborate with scientists at Los Alamos National Laboratory's high magnetic field laboratory to examine barriers to magnetization reversal and antiferromagnetic superexchange interactions of Mn(II)-Mn(II) dimer pairs in these materials at 120 Tesla. In addition to her research, Dr. Dempsey will develop curriculum materials in nanoscience that she will disseminate to Seattle-area students and teachers.Research like that of Dr. Dempsey is aimed at developing new kinds of materials that have interesting or unique physical properties. The specific kinds of materials that Dempsey is working on could be useful in new generations of computers and electronics. The efforts at broadening participation being pursued by Dr. Dempsey are aimed at giving a broad population of students and the public exposure to an emerging area of the chemical sciences.

化学系支持华盛顿大学的 Jillian Dempsey 作为美国化学竞争力研究员。 Dempsey 博士将致力于合成和表征具有有趣、长寿命光磁效应的新型磁性纳米颗粒。 纳米粒子将是具有各种形状和内部结构的 Mn(I) 掺杂 CdSe 量子点。 由此产生的工作将有助于未来自旋电子学和自旋光子材料的开发。 Dempsey 博士将与洛斯阿拉莫斯国家实验室高磁场实验室的科学家合作，检查这些材料中 120 特斯拉时的磁化反转障碍和 Mn(II)-Mn(II) 二聚体对的反铁磁超交换相互作用。 除了她的研究之外，登普西博士还将开发纳米科学课程材料，并将其分发给西雅图地区的学生和教师。像登普西博士这样的研究旨在开发具有有趣或独特物理性质的新型材料。 登普西正在研究的特定材料可能适用于新一代计算机和电子产品。 登普西博士正在努力扩大参与范围，旨在让广大学生和公众接触到化学科学的新兴领域。