Ward S, Mena M, Bouillot P, Kollath C, Giamarchi T, Schmidt KP, Normand B, Kramer KW, Biner D, Bewley R, Guidi T, Boehm M, Mcmorrow DF, Ruegg C (2017)
Publication Language: English
Publication Status: Published
Publication Type: Journal article
Publication year: 2017
Publisher: AMER PHYSICAL SOC
Book Volume: 118
Journal Issue: 17
DOI: 10.1103/PhysRevLett.118.177202
The challenge of one-dimensional systems is to understand their physics beyond the level of known elementary excitations. By high-resolution neutron spectroscopy in a quantum spin-ladder material, we probe the leading multiparticle excitation by characterizing the two-magnon bound state at zero field. By applying high magnetic fields, we create and select the singlet (longitudinal) and triplet (transverse) excitations of the fully spin-polarized ladder, which have not been observed previously and are close analogs of the modes anticipated in a polarized Haldane chain. Theoretical modeling of the dynamical response demonstrates our complete quantitative understanding of these states.
APA:
Ward, S., Mena, M., Bouillot, P., Kollath, C., Giamarchi, T., Schmidt, K.P.,... Ruegg, C. (2017). Bound States and Field-Polarized Haldane Modes in a Quantum Spin Ladder. Physical Review Letters, 118(17). https://doi.org/10.1103/PhysRevLett.118.177202
MLA:
Ward, S., et al. "Bound States and Field-Polarized Haldane Modes in a Quantum Spin Ladder." Physical Review Letters 118.17 (2017).
BibTeX: Download