174 citations · 466 across the 6 of their papers we have counts for
6 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…
Field-Controlled Magnetic Order in the Quantum Spin-Ladder System (Hpip)2CuBr4
B. Thielemann, Ch. Rüegg, K. Kiefer +18
Neutron diffraction is used to investigate the field-induced, antiferromagnetically ordered state in the two-leg spin-ladder material (Hpip)2CuBr4. This "classical" phase, a conseq…
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…
Crystal-to-stripe reordering of sodium ions in NaxCoO2 (x>=0.75)
D. J. P. Morris, M. Roger, M. J. Gutmann +8
The sodium reordering in NaxCoO2 in the vicinity of room temperature is rationalized at high x in terms of phase transitions between square and striped phases. A striking hexagon-o…
Tetrahedra system Cudaca: high-temperature manifold of molecular configurations governing low-temperature properties
O. Zaharko, J. Mesot, L. A. Salguero +9
The Cudaca system composed of isolated Cu2+ S=1/2 tetrahedra with antiferromagnetic exchange should exhibit properties of a frustrated quantum spin system. ab initio density functi…
Emergent charge ordering in near half doped NaCoO
D. N. Argyriou, O. Prokhnenko, K. Kiefer +1
We have utilized neutron powder diffraction to probe the crystal structure of layered NaCoO near the half doping composition of 0.46 over the temperature range of 2…