We propose a robust and highly efficient NMR technique to create singlet spin order from
longitudinal spin magnetization in coupled spin-½ pairs and to perform backward
conversion (singlet order)→ magnetization. In this method we exploit adiabatic ramping of
an RF-field in order to drive transitions between the singlet state and the T±triplet states of a
spin pair under study. We demonstrate that the method works perfectly for both strongly and
weakly coupled spin pairs, providing a conversion efficiency between the singlet spin order …

We propose a robust and highly efficient NMR technique to create singlet spin order from
longitudinal spin magnetization in coupled spin-1/2 pairs and to perform backward
conversion (singlet order) $\to $ magnetization. In this method we exploit adiabatic switching
of an RF-field in order to drive transitions between the singlet state and the $ T_\pm $ triplet
states of a spin pair under study. We demonstrate that the method works perfectly for both
strongly and weakly coupled spin pairs, providing a conversion efficiency between the …