PLZT纳米薄膜的制备及其特性研究

经溶胶-凝胶法制备出PLZT纳米多层膜,采用热重-差热、X射线衍射、拉曼光谱、SEM等对目标产物进行性能和微结构分析.结果表明:在 700℃下保温30min,得到粒径约为50～70nm钙钛矿结构的PLZT纳米薄膜,随Zr含量增大粒径变小,且由三方相向四方相转变.     

Nitrogen dilution effect for small angle GDH experiment in JLab Hall-A

In the GDH sum rule measurement in JLab Hall-A, to obtain the cross section of electron scattering on polarized ³He and its asymmetry in different helicity states, the dilution effect from unpolarized nitrogen mixed in the polarized ³He target were calculated at different kinematic settings.