【摘要】 以磁共振压力显微和半导体核子自旋态研究为目的,采用电子束和等离子体刻印方法制备硅振荡器,脉冲调制序列控制磁共振条件频率和旋转框架翻转,依据样品的自旋-晶格弛豫时间和自旋-自旋弛豫时间,获得了共振显微压力,测试了压力显微的灵敏度。结果表明,光刻的探头具有高Q值和软悬臂低倔强系数K,磁共振压力通过扫描片段和激光光纤干涉得到了极其微小的压力。光刻探头的共振压力显微具有高空间分辨率,兼具核磁共振成像(MRI)和原子压力显微技术(AFM)优点,是一种重要的核自旋探测技术和三维原子分辨率成像的有力方法。更多还原

【Abstract】 Aiming at fabric silicon cantilever and spins study, the resonance force microscopy system was present. The silicon cantilever was fabriced to perfect the Q,K value. Moreover, combining with pulse sequence control and the spin rotate frame system, the experiments analyse the small resonance force and sensitivity. The results show that fabric silicon cantilever have high Q and soft K, the resonance slice and fiber interferometer gain the effective force oscillating, and greatly improved the spatial resolution. The system had advantage of MRI and AFM characteristics. In addition, the simulation indicates that it is powerful tool of magnetic resonance force technology and useful way to 3D atomic resolution microscopy imaging.更多还原