Double nuclear magnetic resonance in the weak ferromagnet YCrO3

Applications of 2D-NMR spectroscopy to measurements of the quadrupole splitting in magnetic materials are discussed using the weak ferromagnet YCrO₃ as a model system. A simple qualitative dissussion and results from computersimulations are given for various experiments. In systems with distributed electric field gradients the method provides a unique way to measure hyperfine field, quadrupole splitting and correlations between these local parameters.