College of Mechanical Engineering;
South China University of Technology;
Guangzhou 510641;
China Department of Physics and Material Science;
City University of Hong Kong;
83 Tat Chee Avenue;
Kowloon;
Hong Kong;
Department of Physics and Material Science;
City University of Hong Kong;
83 Tat Chee Avenue;
Kowloon;
Hong Kong;
College of Mechanical Engineering;
South China University of Technology;
Guangzhou 510641;
China;
College of Mechanical Engineering;
South China University of Technology;
Guangzhou 510641;
China;
College of Mechanical Engineering;
South China University of Technology;
Guangzhou 510641;
China;