Faking-out electrons to make them act like they are moving along graphene, or in a strong 60T magnetic field that doesn't really exist:
Molecular graphene heralds new era of 'designer electrons'
'Molecular Graphene' - Tunable Pseudomagnetic Field
And a similar experiment using Potassium atoms instead of Carbon Monoxide:
Research team finds way to simulate graphene Dirac points
Research team finds way to simulate graphene Dirac points