人造自旋冰是具有二维纳米结构的人造磁性材料，由于其存在的磁性阻挫机制与自旋冰晶体类似，但是拥有易于调控以及可被纳米显微工具所观测的优点，近年来引起广泛的研究。本项目以制备高质量人造自旋冰样品为基础，以其在外界磁场，微波激发的响应以及实空间观测为主要研究手段，来研究其动力学以及热力学行为以及非周期性结构中的阻挫对此的影响。拟展开的工作如下：1）各种结构及尺寸的人造自旋冰制备以及在此基础上的的磁性反转特性测量。2）用微波激发来研究包括非周期性结构在内的各类人造自旋冰在GHz 频率范围的各种自旋波激发模式以及磁偶极相互作用对此的影响。3）寻找低居里温度的磁性材料来展开人工自旋冰的动力学以及热力学实空间观测。通过以上研究揭示几何阻挫在磁动力学行为中的作用。

Artificial spin ice is 2-D magnetic artificial nano-structure, due to its frustration mechanism analogous to the real spin ice, while possess additional advantage such as easily tuned structure and can be imaged by nano microscopy tool, has been intensively investigated recently..Our project focus on quasi-periodic structure based artificial spin ice: based on investigation of its dynamic and thermal-dynamic behavior when subject to the external magnetic field and microwave, we are aiming to study its unique phase transition phenomenon and the geometry frustration induced effect. The work we are going to carried out list below: 1) Fabricate different geometry and different size based artificial spin ice sample and carry out the magnetic reversal properties measurement based on these sample. 2) The magnetization excitation in different geometry include quasi-periodic structure studied by broadband ferromagnetic resonance (FMR) measurement in GHZ frequency as well as the influence of dipole interaction . 3) Seeking low Tc magnetic material for real space observation of the thermal dynamic behavior and thermal-equilibrium process. Based on the investigation above, we are aiming to reveal the role of frustration in dynamic behavior and thermal-equilibrium process of artificial spin ice system.