Torres-Torres C
Sección de Estudios de Posgrado e Investigación, ESIME-Z, Instituto Politécnico Nacional, México, D.F., 07738, Mexico.
Nanotechnology. 2016 Jan 22;27(3):032501. doi: 10.1088/0957-4484/27/3/032501. Epub 2015 Dec 9.
Due to their selective and fascinating effects, metallic nanoparticles have become a very significant topic for science. A modification in morphology and structure of low-dimensional materials can result in extraordinary ultrafast physical phenomena. New findings related to electronic, optical and magnetic processes have emerged from surface plasmon resonance excitations in nanoparticles. Moreover, multi-functional systems can be obtained from the integration of different elements in a nanostructured configuration. Recently, Palmero et al (2015 Nanotechnology 26 461001) have reported magneto-optical Kerr effect explorations in individual FeCuCo nanowires; the influence of tailored morphologies exhibited by particular samples was analyzed. An important magnetization reversal action was revealed and it was concluded that the demagnetization may be responsible for vortex domain wall propagation. The report can provide a solid base for future research and immediate applications in modern spintronics or magnetic data storage can be contemplated.
由于其具有选择性且引人入胜的效应,金属纳米粒子已成为科学界一个非常重要的课题。低维材料的形态和结构的改变可能会导致非凡的超快物理现象。纳米粒子中的表面等离子体共振激发产生了与电子、光学和磁学过程相关的新发现。此外,通过将不同元素整合到纳米结构配置中,可以获得多功能系统。最近,帕尔梅罗等人(2015年,《纳米技术》26卷,461001)报道了对单个FeCuCo纳米线的磁光克尔效应的探索;分析了特定样品所呈现的定制形态的影响。揭示了一个重要的磁化反转作用,并得出结论,退磁可能是涡旋畴壁传播的原因。该报告可为未来的研究提供坚实的基础,并且可以考虑在现代自旋电子学或磁数据存储中的直接应用。