Formation and shaping of magnetic nanoclusters in oxides, using ion implantation

使用离子注入在氧化物中形成和成形磁性纳米团簇

• 批准号: 189694715
• 负责人: Professor Dr. Carsten Ronning
• 金额: --
• 依托单位: iThemba Labs
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/189694715?language=en
• 关键词: Formation; shaping; magnetic; nanoclusters; oxides

Within this project we will train in particular South African M.Sc. and Ph.D. students in high quality research by bringing them into in an internationally respected research collaboration where they will work alongside their German fellow students and have access to high quality research mentoring and supervision. Furthermore, we will investigate the conditions required to synthesize magnetic nano-clusters by ion implantation of Fe and Co in oxides. The formation of the nano-clusters in the host matrices will be studied as functions of annealing temperature, implantation fluence, substrates, and co-doping. Specific manipulation of the shape of the clusters will be achieved using subsequent irradiation with swift heavy ions. Complementary structural (TEM, XRD) and magnetic characterization (VSM, MOKE, Mößbauer) of the prepared samples will finally lead to a deep understanding of (a) the formation mechanism and (b) the correlation between structure and magnetic properties of the embedded nanoclusters.

在这个项目中，我们将特别培养南非的硕士和博士。通过将学生带入国际知名的研究合作中，他们将与德国同学一起工作，并获得高质量的研究指导和监督。此外，我们将探讨所需的条件，通过离子注入铁和钴的氧化物合成磁性纳米团簇。在主机矩阵中的纳米簇的形成将被研究作为退火温度，注入能量密度，衬底，和共掺杂的函数。具体操纵的形状的集群将实现使用随后的照射与快速重离子。对制备的样品进行补充的结构（TEM，XRD）和磁性表征（VSM，MOKE，Mößbauer）将最终导致对（a）形成机制和（B）嵌入纳米团簇的结构和磁性之间的相关性的深入理解。

项目成果

Nanocluster formation in Co/Fe implanted ZnO

Co/Fe 注入 ZnO 中纳米团簇的形成

• DOI: 10.1007/s10751-014-1098-4
• 发表时间: 2015
• 期刊: Hyperfine Interactions

Shape manipulation of ion irradiated Ag nanoparticles embedded in lithium niobate

• DOI: 10.1088/0957-4484/27/14/145202
• 发表时间: 2016-02
• 期刊: Nanotechnology
• 影响因子: 3.5
• 作者: S. Wolf;J. Rensberg;A. Johannes;R. Thomae;F. Smit;R. Neveling;M. Moodley;T. Bierschenk;Matias Rodriguez;B. Afra;S. B. Hasan;C. Rockstuhl;M. Ridgway;K. Bharuth-Ram;C. Ronning