Proximity screening placing conducting gates 1 nm away from carbon lattice pushes graphene electronic charge homogeneity orders of magnitude

https://phys.org/news/2025-09-proximity-screening-graphene-electronic-quality.html

"despite theoretical superiority/ unique Dirac electrons, graphene underperforms gallium arsenide semiconductor heterostructure in high-quality 2D electron systems... disorder from bumpy electron-hole landscape disrupting electron flow, overcome placing flat graphite crystal close to graphene layer, separated by 3 to 4 hexagonal boron nitride atomic layers, graphite acting as gate generating opposite charge canceling out disturbance... less magnetism... quantum computing, high-frequency electronics, precision metrology"