基金
supported by the National Natural Foundation of China (No. 19934003)
the Natural Science Research Key Program of Anhui Educational Committee (No. KJ2011A259)
the Cultivating Base of Anhui Key Laboratory of Spintronics and Nano-materials Research Program(No. 2010YKF01
No. 2010YKF04)
the Professors’ and Doctors’ Research Startup Foundation of Suzhou University (Nos. 2011jb01 and 2011jb02)