Parahydrogen-induced polarization at zero magnetic field.

@article{Butler2013ParahydrogeninducedPA,
  title={Parahydrogen-induced polarization at zero magnetic field.},
  author={M. Butler and Gwendal Kervern and Thomas Theis and Micah P. Ledbetter and Paul Joseph Ganssle and John W. Blanchard and Dmitry Budker and Alexander Pines},
  journal={The Journal of chemical physics},
  year={2013},
  volume={138 23},
  pages={
          234201
        }
}
We use symmetry arguments and simple model systems to describe the conversion of the singlet state of parahydrogen into an oscillating sample magnetization at zero magnetic field. During an initial period of free evolution governed by the scalar-coupling Hamiltonian HJ, the singlet state is converted into scalar spin order involving spins throughout the molecule. A short dc pulse along the z axis rotates the transverse spin components of nuclear species I and S through different angles… Expand

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