73 citations · 311 across the 10 of their papers we have counts for
10 papers
Multiscale QM/MM Molecular Dynamics Study on the First Steps of Guanine-Damage by Free Hydroxyl Radicals in Solution
Ramin M. Abolfath, P. K. Biswas, R. Rajnarayanam +3
Understanding the damage of DNA bases from hydrogen abstraction by free OH radicals is of particular importance to reveal the effect of hydroxyl radicals produced by the secondary…
Ferromagnetism in transparent Mn(II)-doped indium tin oxide films prepared by sol-gel process
Susmita Kundu, Dipten Bhattacharya, Jiten Ghosh +2
We observe remarkably strong room temperature ferromagnetism (~1.5 Bohr Magneton/Mn) in optically transparent Mn(II)-doped indium tin oxide (ITO) films. The nanocrystalline films w…
A new ab initio method of calculating and positron annihilation rates using coupled-channel T-matrix amplitudes
P K Biswas
A new {\it ab initio} theoretical formulation to calculate and hence the positron annihilation rates is presented using the on-shell and half-offshell T-matrix scattering…
Scattering of positronium from singly ionized helium and appearing resonances
P K Biswas, H. M. Gupta
The coupled-channel model [Phys. Rev. A {\bf 59}, 363 (1999)] that yields converged low-energy phase shifts, and exact binding and resonance features in Ps-H [Phys. Rev. A {\bf 59}…
Effect of H ion formation on Positronium-Hydrogen elastic scattering
P K Biswas
Effect of charge-transfer recombination for positronium (Ps) scattering is studied on Ps-H system using coupled-channel formalism considering a new rearrangement channel Ps+H --> e…
Positronium atom scattering by H_2 in a coupled-channel framework
P. K. Biswas, Sadhan K. Adhikari
The scattering of ortho positronium (Ps) by H has been investigated using a three-Ps-state [Ps(1s,2s,2p)HX )] coupled-channel model and using Born approximation f…