Colloidal Excitonic Magnetic Polarons for Spin-Based Photonics

化学部支持华盛顿大学的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新型磁性纳米粒子，这些纳米粒子具有有趣的长寿命光磁效应。 纳米颗粒将是具有各种形状和内部结构的Mn（I）掺杂的CdSe量子点。 所得到的工作将有助于未来自旋电子学和自旋光子学材料的发展。 Dempsey博士将与洛斯阿拉莫斯国家实验室的高磁场实验室的科学家合作，研究在120特斯拉下这些材料中Mn（II）-Mn（II）二聚体对的磁化反转和反铁磁超交换相互作用的障碍。 除了她的研究，邓普西博士将开发纳米科学课程材料，她将传播给西雅图地区的学生和教师。像邓普西博士这样的研究旨在开发具有有趣或独特物理特性的新材料。 邓普西正在研究的特定类型的材料可能在新一代计算机和电子产品中有用。 Dempsey博士正在努力扩大参与，目的是让广大学生和公众接触化学科学的一个新兴领域。

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.