https://research.ibm.com/publications/fqhe-states-of-high-mobility-n-sisilessinfgreater1-xlessinfgreatergelessinfgreaterxlessinfgreater-heterostructures-in-pulsed-magnetic-fields
FQHE states of high mobility n-Si/Si1-xGex heterostructures in pulsed magnetic fields for Solid...
magnetic fieldsfqhestateshighmobility