In what way is graphene’s Quantum Hall Effect (QHE) different from the conventional quantum hall effect?

In what way is graphene’s Quantum Hall Effect (QHE) different from the conventional quantum hall effect? Correct Answer Plateaus occur at 1e2/h

Graphene exhibits the quantum hall effect with respect to conductivity quantization. This effect is anomalous. It shows subtle difference from the conventional hall effect. Here plateaus occur at half integers of (4e2/h) rather than the typical (4e2/h).

Related Questions

Which of the following factors is not responsible for the maintenance of Quantum Hall Effect (QHE) in graphene at high temperatures?