Department of Electronics, Peking University, Beijing 100871;
Dynamique des Transferts aux Interfaces (DTI-CNRS), Faculté des Sciences, Université de Reims, 51687 Reims Cedex 02, France;
Department of Electronics, Peking University, Beijing 100871;
Department of Electronics, Peking University, Beijing 100871;
Department of Electronics, Peking University, Beijing 100871;
Dynamique des Transferts aux Interfaces (DTI-CNRS), Faculté des Sciences, Université de Reims, 51687 Reims Cedex 02, France;
Department of Electronics, Peking University, Beijing 100871;