326 citations · 1.7k across the 59 of their papers we have counts for
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Theory of excited state absorptions in phenylene-based -conjugated polymers
Alok Shukla, Haranath Ghosh, S. Mazumdar
Within a rigid-band correlated electron model for oligomers of poly-(paraphenylene) (PPP) and poly-(paraphenylenevinylene) (PPV), we show that there exist two fundamentally differe…
Designing emissive conjugated polymers with small optical gaps: a step towards organic polymeric infrared lasers
Alok Shukla, Sumit Mazumdar
We show that chemical modification of the trans-polyacetylene structure that involves substitution of the backbone hydrogen atoms with conjugated side groups, leads to reduction of…
Metal-insulator and insulator-insulator transitions in the quarter-filled band organic conductors
K. C. Ung, S. Mazumdar, D. Toussaint
The theory of the 2k_F and 4k_F instabilities in quarter-filled band organic conductors is revisited. The phase angles of the 2k_F bond and charge density waves are shown to change…
Pairing on Small Clusters in the Peierls-Hubbard Model: Implications for C
J. Tinka Gammel F. Guo, D. Guo, K. C. Ung +1
We study the pairing within the Peierls-Hubbard Model for electron- and hole-doped analogs of C accessible to exact diagonalization techniques (cube, truncated tetrahedron,…
Infinite Volume Extrapolations of Finite Cluster Calculations, ---How Correct are These?
S. Mazumdar, F. Guo, D. Guo +2
Extrapolations of numerical data obtained from finite cluster calculations to the infinite volume limit can often give incorrect results. We discuss four separate cases: (a) the in…