FRG NIRT: Science and Technology of Self-Assembled Magnetic and Superconducting Nano Arrays

该提案是响应纳米科学与工程倡议，NSF 03-043，类别NIRT。来自北卡罗来纳州AT州立大学（HBCU机构）、北卡罗来纳州州立大学（NCSU）、佛罗里达大学（UF）、橡树岭国家实验室（ORNL）、印度理工学院、坎普尔（IITK）和IBM TJ沃森中心的科学家和学生组成的多学科团队参与了该项目。 该研究的重点是自组装有序结构的合成和表征（i）纳米磁性颗粒在超导薄膜矩阵和（ii）纳米尺寸的杂质缺陷在高温超导薄膜矩阵。应变场的原理，以创建均匀的岛屿阵列被用于第一次的过渡金属，过渡金属合金，和复杂的氧化物纳米粒子的自组织相干生长具有控制的形状，尺寸和分离的薄膜矩阵。 扫描透射电子显微镜和电子能量损失谱的结果将用于建立一个明确的微观结构和物理性能之间的相关性。该项目的最终目标是制造具有增强性能的自组装纳米颗粒基器件。拟议的教育和推广活动包括：为研究生、本科生、K-12学生和教师制定基于纳米材料的研究和教育计划，及早招募代表性不足的本科生，激励更多的妇女和少数民族学生攻读高级学位，以及在纳米科学和纳米技术问题上培养多样化的熟练劳动力和知情公众。该提案是响应纳米科学与工程倡议，NSF 03-043，类别NIRT。该项目的成功将导致在薄膜介质中产生自组装磁性颗粒，具有更小的颗粒尺寸，更紧密的尺寸分布，优化的成分和指定的颗粒取向。 这些能力预计将导致超高密度磁记录和自旋电子学的革命性进展。 类似地，所提出的自组装过程将为超导薄膜中的涡旋提供改进的钉扎位点，并将导致传输电缆、微波和隧道电子器件在更高温度下更有效地操作。关于长期利益，拟议的NIRT活动将导致（i）加强NCAT基于纳米材料的研究，（ii）教育和培训计划，为本科生，毕业生和博士后研究员从代表性不足的群体，（iii）新的学习机会K-12学生和教师，以及（iv）激励更多的妇女和少数民族学生攻读高级学位。

This proposal was received in response to Nanoscale Science and Engineering initiative, NSF 03-043, category NIRT. A multidisciplinary team of scientists and students from North Carolina A & T State (NCAT) University (an HBCU institution), North Carolina State University (NCSU), University of Florida (UF), Oak Ridge National Laboratory (ORNL), Indian Institute of Technology, Kanpur (IITK) and IBM TJ Watson Center, participates in this project. The proposed research is focused on the synthesis and characterization of self-assembled ordered structures of (i) nanomagnetic particles in nonmagnetic thin-film matrices and (ii) nanodimensional impurity defects in a high temperature superconducting thin film matrix. The principle of strain fields to create uniform arrays of islands is being used for the first time for self-organized coherent growth of transition metal, transition metal alloys, and complex-oxide nanoparticles having controlled shape, dimension, and separation in thin-film matrices. The results from scanning transmission electron microscopy and electron energy loss spectroscopy will be used in establishing an unambiguous correlation between microstructure and physical properties. The final goal of this project is the fabrication of self-assembled nanoparticulate based devices with enhanced performance. The proposed educational and outreach activities include: development of nanomaterials based research and education programs for graduate, undergraduate, K-12 students and teachers, early recruitment of an underrepresented population of undergraduate students, providing motivation for more women and minority students to pursue advanced degrees, and generation of a diversified skilled workforce and informed public in nanoscience and nanotechnology issues. This proposal was received in response to Nanoscale Science and Engineering initiative, NSF 03-043, category NIRT. The success of the project will lead to the creation of self-assembled magnetic particles in thin-film media with smaller particle size, tighter size distribution, optimized compositions, and specified particle orientation. These capabilities are expected to lead to revolutionary progress in ultra-high density magnetic recording and spintronics. Similarly, the proposed self-assembly process will provide improved pinning sites for vortices in superconducting thin films and will result in more efficient operation of transmission cables, microwave, and tunneling electronic devices at higher temperatures. With respect to long term benefits, the proposed NIRT activities will lead to (i) strengthening nanomaterials based research at NCAT, (ii) education, and training programs for undergraduates, graduates and post-doctoral fellows from underrepresented groups, (iii) new learning opportunities for K-12 students and teachers, and (iv) motivating more women and minority students to pursue advanced degrees.