111 citations · 188 across the 5 of their papers we have counts for
5 papers
Statistics of spinons in the spin-liquid phase of Cs2CuCl4
Chung-Hou Chung, Klaus Voelker, Yong Baek Kim
Motivated by a recent experiment on Cs2CuCl4, we study the spin dynamics of the spin-liquid phase of the spin-1/2 frustrated Heisenberg antiferromagnet on the anisotropic triangula…
Unconventional Superconductivity in MgCNi3
Klaus Voelker, Manfred Sigrist
A multiband superconductor with a conventional phonon mechanism can develop an unconventional state with a nontrivial order parameter phase relation between the individual bands. W…
Multiparticle ring exchange in the Wigner glass and its possible relevance to strongly interacting two-dimensional electron systems in the presence of disorder
Klaus Voelker, Sudip Chakravarty
We consider a two-dimensional electron or hole system at zero temperature and low carrier densities, where the long-range Coulomb interactions dominate over the kinetic energy. In…
Dissipation-Driven Breakdown of Universality in Two-Dimensional Superconductors
Klaus Voelker
The influence of gapless dissipative degrees of freedom on the superconductor-insulator transition in two dimensions is investigated. We develop a series expansion for the free ene…
Wigner Glass, Spin-liquids, and the Metal-Insulator Transition
Sudip Chakravarty, Steven Kivelson, Chetan Nayak +1
Recent experiments on the two dimensional electron gas in various semiconductor devices have revealed an unexpected metal-insulator transition and have challenged the previously he…