271 citations · 414 across the 5 of their papers we have counts for
8 papers
Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder
B. Thielemann, Ch. Rüegg, H. M. Rønnow +12
We measure by inelastic neutron scattering the spin excitation spectra as a function of applied magnetic field in the quantum spin-ladder material (C5H12N)2CuBr4. Discrete magnon m…
Quantum Magnets under Pressure: Controlling Elementary Excitations in TlCuCl3
Ch. Rüegg, B. Normand, M. Matsumoto +7
We follow the evolution of the elementary excitations of the quantum antiferromagnet TlCuCl3 through the pressure-induced quantum critical point, which separates a dimer-based quan…
Huge Transverse Magnetization in the Field-Induced Phase of the Antiferromagnetic Molecular Wheel CsFe8
L. Schnelzer, O. Waldmann, M. Horvatić +5
The 1H-NMR spectrum and nuclear relaxation rate 1/T_1 in the antiferromagnetic wheel CsFe8 were measured to characterize the previously observed magnetic field-induced low-temperat…
Standing Spin Waves in an Antiferromagnetic Molecular Cr6 Horseshoe
S. T. Ochsenbein, O. Waldmann, A. Sieber +8
The antiferromagnetic molecular finite chain Cr6 was studied by inelastic neutron scattering. The observed magnetic excitations at 2.6 and 4.3 meV correspond, due to the open bound…
The mixed-valent manganese [3 x 3] grid [Mn(III)4Mn(II)5(2poap-2H)6](ClO4)10.10H2O, a mesoscopic spin-1/2 cluster
O. Waldmann, H. U. Güdel, T. L. Kelly +1
The magnetic susceptibility, and low-temperature magnetization curve, of the [3 x 3] grid [Mn(III)4Mn(II)5(2poap-2H)6](ClO4)10.10H2O is analyzed within a spin Hamiltonian approach.…
Field-induced magnetoelastic instabilities in antiferromagnetic molecular wheels
O. Waldmann, C. Dobe, S. T. Ochsenbein +2
The magnetic torque of the antiferromagnetic molecular wheel CsFe8 was studied down to 50 mK and in fields up to 28 T. Below ca. 0.5 K phase transitions were observed at the field-…