State;
Key;
Laboratory;
of;
Tribology,;
Tsinghua;
University,;
Beijing;
100084,;
China;
State;
Key;
Laboratory;
of;
Tribology,;
Tsinghua;
University,;
Beijing;
100084,;
China;
State;
Key;
Laboratory;
of;
Tribology,;
Tsinghua;
University,;
Beijing;
100084,;
China;
interfacial; friction,; energy; dissipation,; molecular; dynamics; simulation,; superlubricity.;