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The low-energy ARPES and heat capacity of NaCoO: A DMFT study
C. A. Marianetti, K. Haule, O. Parcollet
The cobaltates have demonstrated a wide variety complex behavior. The Na rich region of the phase diagram displays various degrees of anomalous behavior, such as Curie-Weiss behavi…
Quantum Monte Carlo Impurity Solver for Cluster DMFT and Electronic Structure Calculations in Adjustable Base
Kristjan Haule
We generalized the recently introduced new impurity solver based on the diagrammatic expansion around the atomic limit and Quantum Monte Carlo summation of the diagrams. We present…
What is the valence of a correlated solid? The double life of delta-plutonium
J. H. Shim, K. Haule, G. Kotliar
Plutonium displays phase transitions with enormous volume differences among its phases and both its Pauli like magnetic susceptibility and resistivity are an order of magnitude lar…
Doping Dependence of the Redistribution of Optical Spectral Weight in BiSrCaCuO
F. Carbone, A. B. Kuzmenko, H. J. A. Molegraaf +10
We present the ab-plane optical conductivity of four single crystals of BiSrCaCuO (Bi2212) with different carrier doping levels from the strongly underdop…
Avoided Quantum Criticality near Optimally Doped High Temperature Superconductors
Kristjan Haule, Gabriel Kotliar
We study the crossover from the underdoped to the overdoped regime in the t-J model.The underdoped regime is dominated by the superexchange interaction, locking the spins into sing…
Optical Conductivity of the t-J model within Cluster Dynamical Mean Field Theory
Kristjan Haule, Gabriel Kotliar
We study the evolution of the optical conductivity in the t-J model with temperature and doping using the Extended Dynamical Cluster Approximation. The cluster approach results in…