These are two NMR shielding tensors computed for a (8,0) carbon nanotube with a Stone-Wales defect. The defect site is colored to show the heptagon-pentagon pattern of the defect.
In addition, advanced superconductors make the design of extremely compact NMR magnets possible. This, along with active shielding's ability to minimize stray fields, is a major advantage when ...
Recent work focuses on the NMR properties of heavy-atom spin-1/2 nuclei such as 207Pb, 199Hg, and 119Sn. NMR chemical shielding in these materials is sensitive to the local electronic environment, and ...