46 citations · 150 across the 6 of their papers we have counts for
6 papers
Heat transport of the spin-ice materials HoTiO and DyTiO
S. Scharffe, G. Kolland, M. Valldor +3
The elementary excitations of the spin-ice materials HoTiO and DyTiO in zero field can be described as independent magnetic monopoles. We investigate the in…
Hysteresis and Relaxation Effects in the Spin-Ice Compound DyTiO studied by Heat Transport
Simon Scharffe, Gerhard Kolland, Martin Hiertz +2
The low-temperature thermal conductivity of the spin-ice compound DyTiO shows pronounced hysteresis as a function of magnetic field. Here, we investigate how these…
Magnetic phase diagrams, domain switching and a quantum phase transition of the quasi-1D Ising-like antiferromagnet BaCo2V2O8
S. K. Niesen, G. Kolland, M. Seher +5
In the effective Ising spin-1/2 antiferromagnetic chain system BaCoVOc$, t…
Anisotropic Monopole Heat Transport in the Spin-Ice Compound DyTiO
G. Kolland, M. Valldor, M. Hiertz +2
We report a study of the thermal conductivity of the spin-ice material DyTiO. From the anisotropic magnetic-field dependence of κ$ and by additional measurements on…
Thermal Conductivity and Specific Heat of the Spin-Ice Compound DyTiO: Experimental Evidence for Monopole Heat Transport
G. Kolland, O. Breunig, M. Valldor +3
Elementary excitations in the spin-ice compound DyTiO can be described as magnetic monopoles propagating independently within the pyrochlore lattice formed by magnetic…
Gibbs' paradox and black-hole entropy
Claus Kiefer, Gerhard Kolland
In statistical mechanics Gibbs' paradox is avoided if the particles of a gas are assumed to be indistinguishable. The resulting entropy then agrees with the empirically tested ther…