Author(s): S. Ward, M. Mena, P. Bouillot, C. Kollath, T. Giamarchi, K. P. Schmidt, B. Normand, K. W. Krämer, D. Biner, R. Bewley, T. Guidi, M. Boehm, D. F. McMorrow, and Ch. Rüegg
Singlet and triplet excitations are created in the spin ladder bis-piperidinium copper tetrachloride by applying a high magnetic field.

[Phys. Rev. Lett. 118, 177202] Published Fri Apr 28, 2017