Title Prof. First Name RAM Last Name HAZRA
Designation Associate Professor
Department Department of Chemistry
Email rkhazra@chemistry.du.ac.in
Webpage
Phone.no 9958272924
Employement Info
Employee Type Nature Of Employment
Teaching Permanent
Research Publications
Title of Article Type of Publication Name of Journal ISSN Journal Volume Year Link to Article DOI (Digital Object Identifier)
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 Research Papers in Peer Reviewed Journals European Physical Journal Plus 21905444 137 https://doi.org/10.1140/epjp/s13360-022-02970-7
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 Research Papers in Peer Reviewed Journals Physics Open 11
Full-scale analytical perturbation calculation of He-isoelectronic series with Hydrogenic bound states via Green's function expansion (monopole) of Coulomb interactions. Research Papers in Peer Reviewed Journals Molecular Physics e1770881
Multi-electron anisotropic quantum dots/ TMDCs/ CNT families under magnetic field: Analytical treatment to first Brillouin zone of Fermi liquid model Research Papers in Peer Reviewed Journals Molecular Physics 0026 -8976 e176 1472
Analytical Treatment to Helium isoelectronic ions via Green expansion of Coulomb interactions: perturbation calculations of ground-state energies via Hydrogenic orbitals Research Papers in Peer Reviewed Journals Journal of Indian Chemical Society 0019-4522 96 https://doi.org/10.1016/j.jics.2022.100786
Electronic spectra and chemical potential of 2-D multi-electron quantum dots in magnetic field: exact multi-pole expansion of coulomb correlation Research Papers in Peer Reviewed Journals Journal of Physics Communications 2399-6528 3 doi:10.1088/2399-6528
Binding energies and chemical potential of neutral and charged exciton-complexes of transition metal dichalcogenides/anisotropic 2-D quantum dots in magnetic field by exact multi-pole expansion of coulomb correlations Research Papers in Peer Reviewed Journals Physica E: Low-dimensional systems and Nanostructures 108 https://doi.org/10.1016/j.physe
Shell structure and paramagnetism of 3-D N-e anisotropic (ellipsoidal) quantum dots: exact multi-pole expansion of coulomb interaction under Fermionic exchange symmetry Research Papers in Peer Reviewed Journals AIP Advances 2158-3226 8 https://doi.org/10.1063/1.3555832
Addition energy and magnetization of 3-D multicarrier anisotropic quantum dots in magnetic field by exact multi-pole expansion of coulomb correlations Research Papers in Peer Reviewed Journals Physica E: Low-dimensional systems and Nanostructures 1386-9477 104 https://doi.org/10.1016/j.physe
Strongly correlated excitons of regular/irregular planar superlattices in magnetic field: size extensive bi- and tri-exciton systems by multipole expansion Research Papers in Peer Reviewed Journals ACS Omega 7410-7423 2 https://doi.org/10.1021/acsomega.7b00886
Multi-excitonic (n=1, 2 and 3) quantum dots in magnetic field: Analytical mapping of πcorrelations (exchange) by multipole expansion Research Papers in Peer Reviewed Journals Physica E: Low-dimensional systems and Nanostructures 1386-9477 88 https://doi.org/10.1016/j.physe.2017.01.008
Exact e-e (exchange) correlations of 2-D quantum dots in magnetic field: Size extensive-electron systems via multi-pole expansion Research Papers in Peer Reviewed Journals Physica E: Low-dimensional systems and Nanostructures 1386-9477 88 https://doi.org/10.1016/j.physe.2016.11.015
Exact spectra of strong coulomb correlations of 3-D 2-e harmonic dots in magnetic field Research Papers in Peer Reviewed Journals Physica E: Low-dimensional systems and Nanostructures 1386-9477 85 https://doi.org/10.1016/j.physe.2016.08.007
Rabi Type oscillations in damped two-dimensional single electron quantum dots Research Papers in Peer Reviewed Journals Cent. Euro. J. Phys. 1895-1082 10 (4) No DOI
Metastable impurity perturbed states of 2-D quantum dots Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 468 https://doi.org/10.1016/j.cplett.2008.12.005
Information entropy and level spacing distribution based signatures of quantum chaos in electron doped 2D single carrier quantum dots Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 460 https://doi.org/10.1016/j.cplett.2008.05.095
Response Dynamics of 2-D Quantum Dots in the presence of time-varying Fields: Anharmonicity and Pulse shape effects Research Papers in Peer Reviewed Journals Chemical Physics 0301-0104 345 https://doi.org/10.1016/j.chemphys.2008.01.042
Modulation of the electronic states of 2-D single carrier quantum dots due to presence of hole doped impurity perturbations Research Papers in Peer Reviewed Journals Chemical Physics 0301-0104 344 https://doi.org/10.1016/j.chemphys.2007.11.012
Response Properties of 2-electron 2-D Quantum Dots : Triplet versus Singlet Research Papers in Peer Reviewed Journals Computing Letters 1574-0404 3 http://dx.doi.org/10.1163/157404007782913444
Quantum Adiabatic Switching Route to the Impurity Modulated states of 2-D Quantum Dots With different switching functions Research Papers in Peer Reviewed Journals Int. J. Quant. Chem. 0020-7608 108 https://doi.org/10.1002/qua.21535
Linear and Non-linear response of 2-D single carrier dots: Role of impurity perturbations Research Papers in Peer Reviewed Journals Chemical Physics 0301-0104 333 https://doi.org/10.1016/j.chemphys.2006.12.014
Linear and Non-linear optical response properties of singlet 2-electron quantum dots Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 434 https://doi.org/10.1016/j.cplett.2006.11.075
Response of Energy Levels and Wavefunctions of 2-D Artificial Atoms to Changes in Parameters in the Hamiltonian Research Papers in Peer Reviewed Journals J. Theo. Comp. Chem. 1793-6888 5 https://doi.org/10.1142/S0219633606002118
Maximizing second hyperpolarizability of single carrier 2D quantum dots: Interplay of strengths of confining potential, magnetic field and anharmonicity Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 405 https://doi.org/10.1016/j.cplett.2005.02.040
Non-linear optical response of single carrier 2-D anharmonic Quantum dots Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 397 https://doi.org/10.1016/j.cplett.2004.08.091
A linear variational route to the polarizability of 2-D artificial atoms: effects of anharmonicity in the confinement potential Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 388 https://doi.org/10.1016/j.cplett.2004.08.091
Research Projects
Project Title Project Type Year Of Sanction Outcome/Output Duration
Exact AB Initio Formalism … Magnetic Field Major 2017 Research Papers 16-08-2017 To 12-07-2020 (2 years, 10 months, 26 days)
Multi-exciton .. Multi-Pole Expansion Major 2017 Research Publications 11-07-2017 To 30-04-2019 (1 years, 9 months, 19 days)
Novel Approaches to Multi-Carrier Phenomena of Quantum Dots Major 2013 Research Publications 04-04-2013 To 30-09-2017 (4 years, 5 months, 26 days)
Professional Development Programmes
Programme Title Sponsoring Institution Organizing Institution Role Type of Programme
Online Refresher Course in Chemistry for Higher Education SWAYAM, AICTE, Govt. of India SWAYAM, AICTE, Govt. of India Attending Refresher Program
Refresher Course in Indian Folklore, Culture & Traditions (IDC)* UGC UGC Attending Refresher Program
Refresher Course on Chemistry UGC-HRDC Attending Refresher Program
Workshop on Quantitative Research Methodology on Few-body quantum Chemistry NATIONAL CHIAO TUNG UNIVERSITY, TAIWAN NATIONAL CHIAO TUNG UNIVERSITY, TAIWAN Attending Short Term Program
Field Trial and Finalization of Training Package in Chemistry at Hr. Secondary Stage NCERT NCERT Attending Short Term Program
Development of Training Package in Chemistry at Higher Secondary Stage NCERT NCERT Attending Short Term Program
Refresher Course on Chemistry UGC-HRDC University of Delhi Attending Refresher Program
OR-75, University of Delhi UGC-ASC University of Delhi Attending Orientation Programme
Talk Poster Presented
Name of the Activity Role Date of Activity
Many-body systems in Lateral (Electrical)... Molecules to Superlattices Invited Talk 07-10-2019
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 Invited Talk 07-03-2018
Multi-carrier systems in Lateral (Electrical) and Transverse (Magnetic) Confinements by Multi-pole Expansion: Atoms, Molecules to Superlattices Invited Talk 14-02-2019
Electronic structure of He-isoelectronic series: a comparative study between perturbation and multi-configuration variational approaches with analytical multi-pole integrals of Greenꞌs function expansion of Coulomb interactions Invited Talk 13-12-2021
Analytical multi-configuration variation method for ground-state and ionization energies of He and Period-II elements using Green′s function expansion of Coulomb (exchange) interaction for H-like basis set Invited Talk 26-05-2022
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