Well, I did my MSc in physics on graphene quantum dots, so if you have any questions about how to prepare graphene and construct graphene/hexagonal boron nitride heterostructures for high quality, ask away. But I can already tell you that all the neat spin-locked states are not something you do in a home lab unless your home lab has some nice measurement amplifiers and possible a dilution refrigerator. You also need a cleanroom environment to prepare your graphene samples (complete with spincoater, plasma cleaning, and so on), bonding equipment and lot of other non-trivial equipment to actually get somewhere. And for contacting you need some form of lithography, reactive ion etching, gold sputtering... Not trivial. Graphene is a fun material, though. I always thought about using the odd properties of graphene to potentially build a desktop-sized Free Electron Laser, since surface ripples in graphene can lead to enormous pseudomagnetic fields, and charge carriers in graphene are (sorta) relativistic already. There was a research project on using graphene in FELs a few years ago, but I'm still waiting on papers from that. Also, now that large-scale CVD graphene in good quality is finally getting somewhere (my old group from university basically revolutionized the techniques, and now CVD graphene has the same or better properties than exfoliated graphene at millimeter sample sizes), I wonder how well an electrical capacitor made of graphene and hexagonal boron nitride would work. Imagine a few meters of continuous graphene in a stripe about 10 cm tall. Put a few layers of hBN on it (which is a very good insulator, chemically inert and has basically the same lattice structure as graphene), and roll it up into a capacitor. Since the stack of graphene and hBN is less than a 100 nm thick you should get quite a lot of layers in this capacitor, and potentially a huge capacity. But well, while CVD graphene is able to produce such large samples in the near future, hBN production is not there yet. The combination of graphene and hBN is still relatively new. If you want to do CVD graphene though, that's actually quite easy, you just need methane, a fused silica tube oven, and some copper.