Break point on the auto-correlation function of Elsässer variable z- in the super-Alfvénic solar wind fluctuations

Chuan-Yi Tu1, Xin Wang2, Jiansen He1 and Linghua Wang3, (1)Peking University, Beijing, China, (2)Beihang University, School of Space Science and Environment, Beijing, China, (3)Peking University, Institute of Space Physics and Applied Technology, Beijing, China