271 citations · 625 across the 4 of their papers we have counts for
5 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…
Thermodynamics of the Spin Luttinger-Liquid in a Model Ladder Material
Ch. Rüegg, K. Kiefer, B. Thielemann +11
The phase diagram in temperature and magnetic field of the metal-organic, two-leg, spin-ladder compound (C5H12N)2CuBr4 is studied by measurements of the specific heat and the magne…
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…
Diverging thermal expansion of the spin-ladder system (CHN)CuBr
T. Lorenz, O. Heyer, M. Garst +4
We present high-resolution measurements of the -axis thermal expansion and magnetostriction of piperidinium copper bromide \hp. The experimental data at low temperatures i…
Quantum Statistics of Interacting Dimer Spin Systems
Ch. Rüegg, B. Normand, M. Matsumoto +7
The compound TlCuCl3 represents a model system of dimerized quantum spins with strong interdimer interactions. We investigate the triplet dispersion as a function of temperature by…