56 citations · 228 across the 23 of their papers we have counts for
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An effective Hamiltonian for phase fluctuations on a lattice: an extended XY model
Wonkee Kim, J. P. Carbotte
We derive an effective Hamiltonian for phase fluctuations in an s-wave superconductor starting from the attractive Hubbard model on a square lattice. In contrast to the common assu…
C-axis Response of a High-T_{c} Superconductor with D-Density Wave Order
Wonkee Kim, Jian-Xin Zhu, J. P. Carbotte +1
The microscopic origin of the pseudogap state which exists in the underdoped cuprates remains unknown. The -axis properties in the pseudogap regime are particularly anomalous. W…
Quasiparticle States around a Nonmagnetic Impurity in D-Density-Wave State of High- Cuprates
Jian-Xin Zhu, Wonkee Kim, C. S. Ting +1
Recently Chakravarty {\em et al.} proposed an ordered -density wave (DDW) state as an explanation of the pseudogap phase in underdoped high-temperature cuprates. We study the co…
C-axis Optical Sum Rule in Josephson Coupled Vortex State
Wonkee Kim, J. P. Carbotte
Observed violations of the -axis optical sum rule can give important information on deviations from in-plane Fermi liquid behavior and on the nature of interlayer coupling betwe…