The design of a multi-channel spin polarimeter

All commercial electron spin polarimeters work in single channel mode, which is the bottleneck of researches by spin-resolved photoelectron spectroscopy. By adopting the time inversion antisymmetry of magnetic field, we developed a multichannel spin polarimeter based on normal incident VLEED. The key point to achieve the multi-channel measurements is the spatial resolution of the electron optics. The test of the electron optics shows that the designed spatial resolution can be achieved and an image type spin polarimeter with 100 times 100, totally ten thousand channels is possible to be realized.Comment: submitted to Chinese Physics

Institutional Labour Market Segmentation in China

As the excessive labour market segmentation has negatively affected China’s social and economic development in many ways, this paper describes the status quo of China’s labour market segmentation and the segmentation’s history since 2000. In addition, the paper analyzes institutional factors that affect labour market segmentation among different groups and assesses the effects of specific policies that are closely related to the development of the labour market. More specifically, this paper reviews key labour market policies and programs introduced during the last decade and analyzes the impact of the Minimum Wage Policy, the Labour Contract Law and the Household Registration System (hukou) on labour market segmentation. At last, it offers several policy recommendations to reduce the China’s labour market segmentation