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19 papers · 2 filters
Nonequilibrium-induced metal-superconductor quantum phase transition in graphene
So Takei, Yong Baek Kim
We study the effects of dissipation and time-independent nonequilibrium drive on an open superconducting graphene. In particular, we investigate how dissipation and nonequilibrium…
Kondo Effect in Spin Chains
Nicolas Laflorencie, Erik S. Sørensen, Ian Affleck
The free electron Kondo problem can be described by a one-dimensional (1D) model because only the s-wave part of the electronic wave-function is affected by the Kondo coupling. Sin…
Observation of a 500meV Collective Mode in LaSrCuO and NdCuO
J. P. Hill, G. Blumberg, Young-June Kim +9
Utilizing resonant inelastic x-ray scattering, we report a previously unobserved mode in the excitation spectrum of LaSrCuO at 500 meV. The mode is peaked around th…
Charge-transfer exciton in La2CuO4 probed with resonant inelastic x-ray scattering
D. S. Ellis, J. P. Hill, S. Wakimoto +4
We report a high-resolution resonant inelastic x-ray scattering study of La2CuO4. A number of spectral features are identified that were not clearly visible in earlier lower-resolu…
Theory of Néel and Valence-Bond-Solid Phases on the Kagome Lattice of Zn-paratacamite
Michael J. Lawler, Lars Fritz, Yong Baek Kim +1
Recently, neutron scattering data on powder samples of Zn-paratacamite, ZnCu(OH)Cl, with small Zn concentration has been interpreted as evidence for valence b…
Intimate relations between electronic nematic, d-density wave and d-wave superconducting states
Hae-Young Kee, Hyeonjin Doh, Thomas Grzesiak
This paper consists of two important theoretical observations on the interplay between l = 2 condensates; d-density wave (ddw), electronic nematic and d-wave superconducting states…