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
Article Name Publication Type Journal Name ISSN No Volume Year URL DOI
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 2022 https://doi.org/10.1140/epjp/s13360-022-02970-7

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 2020
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 2022
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 2020
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 2019 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 2019 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 2019 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 2018 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 2018 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 2017 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 2017 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 2017 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 2017 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) 2012 No DOI

Metastable impurity perturbed states of 2-D quantum dots Research Papers in Peer Reviewed Journals Chem. Phys. Lett. 0009-2614 468 2009 https://doi.org/10.1016/j.cplett.2008.12.005

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 2008 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 2008 https://doi.org/10.1016/j.chemphys.2007.11.012

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 2008 https://doi.org/10.1016/j.cplett.2008.05.095

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 2007 https://doi.org/10.1016/j.chemphys.2006.12.014

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 2007 https://doi.org/10.1002/qua.21535

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 2007 https://doi.org/10.1016/j.cplett.2006.11.075

Response Properties of 2-electron 2-D Quantum Dots : Triplet versus Singlet Research Papers in Peer Reviewed Journals Computing Letters 1574-0404 3 2007 http://dx.doi.org/10.1163/157404007782913444

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 2006 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 2005 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 2004 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 2004 https://doi.org/10.1016/j.cplett.2004.08.091

Research Projects
Title of the Project Project Type Year Of Sanction Output Start Date End Date
Exact AB Initio Formalism … Magnetic Field Major 2017 Research Papers 2017-08-16 2020-07-12
Multi-exciton .. Multi-Pole Expansion Major 2017 Research Publications 2017-07-11 2019-04-30
Novel Approaches to Multi-Carrier Phenomena of Quantum Dots Major 2013 Research Publications 2013-04-04 2017-09-30
Professional development programmes
Title of the Programme Sponsoring Institution Organising Institution Association as type
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
Seminar / Conference Details / Workshops
Title of the Activity Attended As Date
Many-body systems in Lateral (Electrical)... Molecules to Superlattices Invited Talk 2019-10-07
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 2018-03-07
Multi-carrier systems in Lateral (Electrical) and Transverse (Magnetic) Confinements by Multi-pole Expansion: Atoms, Molecules to Superlattices Invited Talk 2019-02-14
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 2021-12-13
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 2022-05-26
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