Recent Experimental Progress of Fractional Quantum Hall Effect: 5/2 Filling State and Graphene

  title={Recent Experimental Progress of Fractional Quantum Hall Effect: 5/2 Filling State and Graphene},
  author={Xi Lin and Rui-Rui Du and Xincheng Xie},
  journal={National Science Review},
The phenomenon of fractional quantum Hall effect (FQHE) was first experimentally observed 33 years ago. FQHE involves strong Coulomb interactions and correlations among the electrons, which leads to quasiparticles with fractional elementary charge. Three decades later, the field of FQHE is still active with new discoveries and new technical developments. A significant portion of attention in FQHE has been dedicated to filling factor 5/2 state, for its unusual even denominator and possible… 
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