In continuous wave spectroscopy, this quantity is varied at constant frequency.
The horns on a Pake (payk) doublet occur where this quantity is either parallel or perpendicular to the EFG tensor. In the lab frame, the tip angle is de ned with respect to this quantity, which, by convention, points along the z-axis. In continuous wave spectroscopy, this quantity is varied at constant frequency. Shimming homogenizes this vector quantity. DiÂ·polar broadening is minimized when the angle between it and a solid sample is 54.74 degrees, or the magic angle. The energy difference between two spin states is this quantity times the gyromagnetic ratio times h-bar. The local value for this quantity decreases in aromatic compounds, giving them high chemical shi0s since their protons are shielded. Nuclear spins precess about this vector in NMR. For 10 points, name this quantity measured in teslas.
The horns on a Pake (payk) doublet occur where this quantity is either parallel or perpendicular to the EFG tensor.
external magnetic  eld [or B; or H; or B-nought; or H-nought; prompt on  eld strength; prompt on external  eld strength]