Ram_Kuntal_Hazra

Dr. Ram Kuntal Hazra

(Associate Professor)

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Dr. Ram Kuntal Hazra is currently serving in the Department of Chemistry as an Associate Professor. He is working in the department since April 2010. He obtained his Master’s degree from IIT Roorkee, Uttaranchal. He qualified the National Eligibility Test (NET, UGC-CSIR) in December 2000 and in June 2003 and secured a position within top 20% in NET December 2000 and was called for Dr. S P M Fellowship. He qualifiedGraduate Aptitude Test of Engineering (IIT Kanpur, February 2001 with rank 44). Dr. R. K. Hazra received his doctoral degree from Department of Physical Chemistry in Indian Association for Cultivation of Science (IACS), affiliated to Jadavpur University, Kolkata under supervision of Professor S P Bhattacharyya. He did his research work as a theoretical chemist in the realm of optical responses, controlled excitation, and impact of impurities on single 2D quantum dots. Dr. Hazra joined the theoretical/computational group of Professor Dr. Michelle Parrinello in Swiss Federal Institute of Technology, ETH-Zurich (2008-2009). He was awarded Dr. D. S. Kothari Post-Doctoral Fellowship under the mentor Professor Kamal Bhattacharya in the Department of Chemistry, University of Calcutta.  His research group mainly focusses on development of many-body interactions in lateral (electrical) and transverse (magnetic) confinements by Coulomb’s Green function in generic coordinates. Condensed matter physics generally deals with electron-electron, electron-hole, and electron-phonon interactions. On the other hand, chemistry deals with atoms, molecules and ions that can be imagined as many-center many-electron structures where the two-center one-electron and the two-center two-electron systems act as building blocks. Therefore, we are currently trying to develop feasible analytical quantum mechanical methods for moderately large systems, e.g., small microclusters.

Selected Publications:

  1. ‘Binding energies and current density of heavy-hole trions of monolayer transition metal dichalcogenides: analytical perturbation treatment of Coulomb interaction with 2D H-like basis set’, B. Kapil, S. Sharma, P. Aggarwal and R. K. Hazra, Eur. Phys. J. Plus, 137, 809 (2022).
  2. ‘Heavy-hole bilayer trions of transition metal dichalcogenides by analytical treatment to model He-isoelectronic ions upto dipole factor of Green′s function expansion of Coulomb interaction’, S. Sharma, B. Kapil, P. Aggarwal and R. K. Hazra, Physics Open, 11, 100107 (2022).
  3. ‘Strongly Correlated Excitons of Regular/irregular Planar Quantum Dots in Magnetic Field: Size Extensive Bi- and Tri-Exciton (e-h-e-h and e-e-h/e-h-h) Systems by Multipole Expansion’, H. Kaur, S. Singh, P. Aggarwal, S. Sharma, S. Yadav and R. K. Hazra, Am. Chem. Soc. Omega 2,7410-7423 (2017).
  4. ‘Multi-excitonic (N=1,2 and 3) quantum dots in magnetic field: Analytical mapping of correlations (exchange) by multipole expansion’, S. Singh, H. Kaur, S. Sharma, P. Aggarwal and R. K. Hazra, Physica E: Low-dimensional Systems and Nano-structures88,289(2017).
  5. ‘Exact e-e (exchange) correlations of 2-D quantum dots in magnetic field: Size extensive N =3, 4,, n-electron systems via multi-pole expansion’, P. Aggarwal, S. Sharma, S.Singh, H. Kaur and R. K. Hazra, Physica E: Low-dimensional Systems and Nano-structures88,26(2017).
  6. ‘Exact spectra of strong coulomb correlations of 3-D 2-e harmonic dots in magnetic field’,
    P. Aggarwal, S. Sharma, H. Kaur, S. Singh, and R. K. Hazra, Physica E: Low dimensional Systems and Nano-structures 85, 56 (2017).