71 citations · 156 across the 9 of their papers we have counts for
6 papers · 1 filter
Impurity effects in the quantum kagome system ZnCu3(OH)6Cl2
R. Chitra, M. J. Rozenberg
Motivated by the recent experiments on the new spin half Kagome compound ZnCu3(OH)6Cl2, we study a phenomenological model of a frustrated quantum magnet. The model has a spin liqui…
Disorder effects in the quantum kagome antiferromagnet ZnCu3(OH)6Cl2
M. J. Rozenberg, R. Chitra
The recent NMR experiments on ZnCu3(OH)6Cl2 motivate our study of the effect of non- magnetic defects on the antiferromagnetic spin-1/2 kagome lattice. We use exact diagonalization…
Electronic state of a doped Mott-Hubbard insulator at finite temperatures studied using the dynamical mean-field theory
A. Camjayi, R. Chitra, M. J. Rozenberg
We study the electronic state of the doped Mott-Hubbard insulator within Dynamical Mean Field Theory. The evolution of the finite temperature spectral functions as a function of do…
Zero field Wigner crystal
R. Chitra, T. Giamarchi
A candidate for the insulating phase of the 2D electron gas, seen in high mobility 2D MOSFETS and heterojunctions, is a Wigner crystal pinned by the incipient disorder. With this i…
Thermal transport in one-dimensional spin gap systems
E. Orignac, R. Chitra, R. Citro
We study thermal transport in one dimensional spin systems both in the presence and absence of impurities. In the absence of disorder, all these spin systems display a temperature…
Effect of coulomb long range interactions on the Mott transition
R. Chitra, G. Kotliar
We reconsider the Mott transition problem in the presence of long range Coulomb interactions. Using an extended DMFT, that sums an important class of diagrams absent in ordinary DM…