| Title | Dr. | First Name | Sumalay | Last Name | Roy |
|
|
|---|---|---|---|---|---|---|---|
| Designation | Assistant Professor | ||||||
| Department | Department of Physics and Astrophysics | ||||||
| Webpage | |||||||
| Phone.no | 011-27667075 | ||||||
| Employement Info | |||||||
|---|---|---|---|---|---|---|---|
| Employee Type | Nature Of Employment | ||||||
| Teaching | Permanent | ||||||
| Educational | |||||||
|---|---|---|---|---|---|---|---|
| Degree/Certification | Institution | Year | |||||
| Ph.D. - Non-magnetic and Magnetic multilayers: Microstrcutures, Properties and Their ion-beam Modifications | Jadavpur University (Indian Association for the Cultivation of Science) | ||||||
| Qualifications | |||||||
|---|---|---|---|---|---|---|---|
| Examination Name | Conducted By | Date of Passing | |||||
| NET | Council of Scientific & Industrial Research (CSIR)-University Grants Commission (UGC) | 2001-02-01 | |||||
| Montorship | |||||||
|---|---|---|---|---|---|---|---|
| Student Name | Affiliation of the student | Duration Of Mentoring | |||||
| Mr. Sandip Mandal | Indian Institute of Technology, Kharagpur | ||||||
| Ms. Shailja Saxena | Institute of Chemical Technology, Mumbai | ||||||
| Teaching experience inside the Institution | |||||||
|---|---|---|---|---|---|---|---|
| Designation | Institution | Duration From | Duration To | ||||
| Assistant Professor | University of Delhi | 2016-04-18 | 2023-10-27 | ||||
| Expert Consultant in IBIQuS project | Indian Association for Cultivation of Science | 2016-01-01 | 2016-03-31 | ||||
| Guest Scientist | Max Plank Institute of Microstructurephysics | 2012-02-22 | 2015-12-31 | ||||
| Subjects Taught | |||||||
|---|---|---|---|---|---|---|---|
| Activity Type | Course Title | From | To | Semester | Total Classes Assigned | Number of Classes Taught | |
| Practical | Computational Physics Lab (Core) | 2016-07-20 | 2016-11-15 | 3 | 10 | 10 | |
| Practical | Advance Solid State Physics Lab (Elective) | 2017-01-02 | 2017-04-27 | 4 | 8 | 8 | |
| Tutorial | Statistical Mechanics (Core -Theory) | 2017-01-02 | 2017-04-27 | 2 | 4 | 4 | |
| Practical | Computaional Physics Lab (Core) | 2017-07-20 | 2017-11-16 | 3 | 10 | 10 | |
| Tutorial | Statistical Mechanics (Core-Theory) | 2018-01-01 | 2018-04-27 | 2 | 4 | 4 | |
| Practical | Advanced Solid State Physics Lab (Elective) | 2018-01-01 | 2018-04-27 | 4 | 8 | 8 | |
| Practical | Computational Physics Lab (Core) | 2018-07-20 | 2018-11-16 | 3 | 9 | 9 | |
| Practical | Laser and Spectroscopy Lab. (Elective) | 2019-01-01 | 2019-04-29 | 4 | 8 | 8 | |
| Tutorial | Statistical Mechanics (Core-Theory) | 2019-01-01 | 2019-04-29 | 2 | 4 | 4 | |
| Practical | Nanomaterials Lab. I (Elective) | 2019-07-20 | 2019-11-16 | 3 | 8 | 8 | |
| Lecture | Solid State Physics (Core-Theory) | 2020-01-01 | 2020-05-18 | 2 | 3 | 3 | |
| Practical | Computational Physics Lab. (Core) | 2020-07-20 | 2020-11-16 | 3 | 12 | 12 | |
| Practical | Solid State Physics Lab. (Core) | 2021-04-01 | 2021-08-03 | 2 | 8 | 8 | |
| Lecture | Solid State Physics (Core-Theory) | 2021-04-01 | 2021-08-03 | 2 | 3 | 3 | |
| Practical | Advanced Solid State Physics Lab. - I (Elective) | 2021-08-16 | 2021-12-12 | 3 | 8 | 8 | |
| Lecture | Advanced Solid State Physics II (Elective-Theory) | 2022-01-03 | 2022-04-27 | 4 | 4 | 4 | |
| Lecture | Solid State Physics (Core-Theory) | 2022-04-16 | 2022-08-01 | 2 | 3 | 3 | |
| Practical | Computational Physics Lab (core) | 2022-08-26 | 2022-12-13 | 3 | 12 | 12 | |
| Practical | Solid State Physics (Core Lab) | 2022-12-12 | 2023-03-23 | 1 | 8 | 8 | |
| Lecture | Solid State Physics (Core Theory) | 2023-04-17 | 2023-08-03 | 2 | 3 | 3 | |
| Practical | Computational Physics (Core Lab) | 2023-09-01 | 2023-12-21 | 3 | 16 | 16 | |
| Research Guidance | |||||||
|---|---|---|---|---|---|---|---|
| PhD scholars under Supervision | Awarded PhD | Submitted | |||||
| 1 | 1 | ||||||
| Research Publications | |||||||
|---|---|---|---|---|---|---|---|
| Article Name | Publication Type | Journal Name | ISSN No | Volume | Year | URL | DOI |
| Study of sputtered particles from gold nano-islands due to MeV self-ion irradiation | Research Papers in Peer Reviewed Journals | Nuclear Instruments and Methods in Physics Research B | 0168-9002 | 212 | 2003 | 10.1016/S0168-583X(03)01491-5 | |
| Pattern growth of Ge films on PtBA polymer substrates | Research Papers in Peer Reviewed Journals | Physica E | 1386-9477 | 27 | 2005 | 10.1016/j.physe.2004.11.010 | |
| High resolution X-ray diffraction study of some aspects governing epitaxial growth | Research Papers in Peer Reviewed Journals | Indian Journal of Physics | 0973-1458 | 79 | 2005 | NA | |
| Proton microbeam effects on PtBA polymer | Research Papers in Peer Reviewed Journals | Bulletine of Materials Science | 0250-4707 | 29 | 2006 | NA | |
| Preferential heights in the growth of Ag islands on Si(111)-(7x7) surfaces | Research Papers in Peer Reviewed Journals | Surface Science | 0039-6028 | 601 | 2007 | 10.1016/j.susc.2006.10.026 | |
| Coexistent compressive and tensile strain in Ag thin films on Si(111)-(7X7) surfaces | Research Papers in Peer Reviewed Journals | Applied Surface Science | 1694332 | 253 | 2007 | 10.1016/j.apsusc.2007.05.051 | |
| Temperature dependent changes in structural and magnetic properties of heavy ion irradiated nanoscale Co/Pt multilayers | Research Papers in Peer Reviewed Journals | New Journal of Physics | 1367-2630 | 9 | 2007 | 10.1088/1367-2630/9/6/164 | |
| Microstructural evolution, atomic migration and FePt nanoparticle formation in ion-irradiated Pt(Fe)/ C(Fe) multilayers | Research Papers in Peer Reviewed Journals | Journal of Applied Physics | 1089-7550 | 102 | 2007 | 10.1063/1.2752150 | |
| Microstructures of a Pt/Ni/C multilayer system: An X-ray reflectivity and ion scattering study | Research Papers in Peer Reviewed Journals | Journal of Nanoscience and Nanotechnology | 1533-4899 | 7 | 2007 | 10.1166/jnn.2007.791 | |
| Estimation of diffusion co-efficient by photoemission electron microscopy in ion-implanted nanostructures | Research Papers in Peer Reviewed Journals | Applied Surface Science | 1694332 | 256 | 2009 | doi:10.1016/j.apsusc.2009.08.022 | |
| Ion-irradiated laterally graded Ni/C multilayers: A combined X-ray standing wave and X-ray reflectivity analysis. | Research Papers in Care Listed Journals | Japanese Journal of Applied Physics | 1347-4065 | 50 | 2011 | 10.1143/JJAP.50.052501 | |
| X-ray standing waves in a multi-trilayer system with linearly varying period. | Research Papers in Care Listed Journals | Applied Surface Science | 1694332 | 257 | 2011 | 10.1016/j.apsusc.2011.03.127 | |
| Ion-irradiation induced evolution of nanostructure in a double-graded multi-trilayer system | Research Papers in Peer Reviewed Journals | Applied Surface Science | 1694332 | 258 | 2011 | 10.1016/j.apsusc.2011.12.074 | |
| Ion beam induced mixing in a Si/Co/Si system involving ultrathin layers: A grazing incidence x-ray standing wave study. | Research Papers in Peer Reviewed Journals | Physica Status Solidi A | 1862-6319 | 209 | 2012 | 10.1002/pssa.20112776 | |
| Interfacial mixing in as-deposited Si/Ni/Si layers analyzed by x-ray and polarized neutron reflectometry | Research Papers in Peer Reviewed Journals | Applied Surface Science | 1694332 | 263 | 2012 | http://dx.doi.org/10.1016/j.apsusc.2012.09.132 | |
| Ascertaining the nanocluster formation within an ion-irradiated Pt/Ni/C multi-trilayer with X-ray absorption spectroscopy | Research Papers in Peer Reviewed Journals | Journal of Synchrotron Radiation | 1600-5775 | 20 | 2013 | 10.1107/S090904951204157X | |
| X-ray analysis of Wurtzite type CoO (111) films on Ir (001): Correlation of structure, stress, electronic and magnetic properties | Research Papers in Care Listed Journals | Physical Review B | 2469-99679 | 89 | 2014 | 10.1103/PhysRevB.89.165428 | |
| Tuning the Dirac point position in Bi2Se3 (0001) via surface carbon doping | Research Papers in UGC listed Journals | Physical Review Letters | 1079-7114 | 113 | 2014 | 10.1103/PhysRevLett.113.116802 | |
| Atomic relaxations at the (0001) surface of Bi2Se3 single crystals and ultrathin films | Research Papers in UGC listed Journals | Physical Review B | 2469-9969 | 90 | 2014 | 10.1103/PhysRevB.90.155456 | |
| Atomic and electronic structure of bismuth-bilayer-terminated Bi2Se3(0001) prepared by atomic hydrogen etching | Research Papers in Peer Reviewed Journals | Physical Review B | 2469-9969 | 91 | 2015 | 10.1103/PhysRevB.91.205430 | |
| Surface alloying and iron selenide formation in Fe/Bi2Se3 observed by x-ray absorption fine structure experiments | Research Papers in Care Listed Journals | Physical Review B | 2469-9969 | 92 | 2015 | 10.1103/PhysRevB.92.045423 | |
| Observation and Structure Determination of an Oxide Quasicrystal Approximant | Research Papers in Care Listed Journals | Physical Review Letters | 1079-7114 | 117 | 2016 | 10.1103/PhysRevLett.117.095501 | |
| The Kepler tiling as the oldest complex surface structure in history: X-ray structure analysis of a two dimensional oxide quasi-crystal approximant | Research Papers in Care Listed Journals | Zeitschrift für Kristallography | 1433-7266 | 231(12) | 2016 | 10.1515/zkri-2016-2004 | |
| Geometric and electronic structure of the Cs-doped Bi2Se3 (0001) surface. | Research Papers in Care Listed Journals | Physical Review B | 2469-9969 | 95 | 2017 | 10.1103/PhysRevB.95.205429 | |
| X-ray structure analysis of ultra-thin silver films on the (0001) surface of the topological insulator Bi2Se3 | Research Papers in Care Listed Journals | Physica Status Solidi-Rapid Research Letter | .1862-6270 | 12 | 2018 | 10.1002/pssr.201800138 | |
| Towards x-ray waveguide formation upon ion irradiation of a Co thin film on Si(111) | Research Papers in Care Listed Journals | Materials Research Express | 2053-1591 | 6 | 2019 | https://doi.org/10.1088/2053-1591/ab059a | |
| Periodic stacking of two dimensional Bismuth bi-layers in Bismuth stearate thin films | Research Papers in Scopus Listed Journals | Journal of Physics : Condensed Matter | 1361-648X | 35 | 2023 | doi.org/10.1088/1361-648X/acd42e | |
| Research Projects | |||||||
|---|---|---|---|---|---|---|---|
| Title of the Project | Project Type | Year Of Sanction | Output | Start Date | End Date | ||
| UGC-FRP Start up Grant | Minor | 2018 | 2018-03-22 | 2021-03-21 | |||
| Growth of periodic multi-bi-layer structure of high Z metals on the surface of three dimensional topological insulators | Major | 2019 | 2019-12-26 | 2023-06-25 | |||
| Professional development programmes | |||||||
|---|---|---|---|---|---|---|---|
| Title of the Programme | Sponsoring Institution | Organising Institution | Association as | type | |||
| Online Refresher Course on Physical Sciences and Nano Sciences | University Grants Commission (UGC) | UGC-Human Resource Development Centre (HRDC) Jawaharlal Nehru University | Attending | Refresher Program | |||
| Two weeks Online Refresher Course on "Engineering, Physical Sciences and Management" | IEEE Delhi Section and Industry Institute Partnership Cell (IIPC), AICTE | Bharati Vidyapeeth’s Institute of Computer Applications and Management (BVICAM), New Delhi | Attending | Refresher Program | |||
| Four weeks Orientation programme (OR94) | HRDC-University Grants Commission (UGC) | Centre for Professional Development in Higher Education (CPDHE), University of Delhi (HRDC-UGC) | Attending | Orientation Programme | |||
| Seminar / Conference Details / Workshops | |||||||
|---|---|---|---|---|---|---|---|
| Title of the Activity | Attended As | Date | |||||
| High resolution x-ray diffraction study of some aspects governing epitaxial growth | Poster Presentation | 2004-08-26 | |||||
| X-ray reflectometric micro-structural study of multilayers | Poster Presentation | 2005-10-25 | |||||
| Molecular ordering in lead stearate Langmuir Blodgett film on different hydrophilic substrates | Poster Presentation | 2005-12-08 | |||||
| Microstructure of Pt/Ni/C multilayer system: An x-ray reflectivity and ion-scattering study | Poster Presentation | 2006-03-17 | |||||
| A combined x-ray standing wave and reflectometric characterization of a Pt/Ni/C multi-trilayer structure | Poster Presentation | 2007-10-10 | |||||
| Effect of ion-beam mixing on magnetic exchange bias in nanoscale Si/Co/Si system | Oral Presentation | 2009-12-10 | |||||
| Effect of ion beam mixing on magnetic exchange bias in a nanoscale Si/Co/Si system | Poster Presentation | 2010-12-03 | |||||
| X-ray standing wave in a multi-trilayer system with linearly varying period | Poster Presentation | 2010-12-28 | |||||
| Structure, stress and magnetism of CoO(111) monolayers on Ir (001) | Poster Presentation | 2013-10-01 | |||||
| Structure, stress and magnetism of CoO(111) monolayers on Ir (001) | Invited Talk | 2014-02-27 | |||||
| Ultrathin films of CoO(111) monolayers on Ir (001) : Structure, stress, electronic and magnetic properties | Oral Presentation | 2014-04-03 | |||||
| Modifications in atomic structure and correlated electronic properties of Bi2Se3(0001) surface doped with non-metalic elements | Invited Talk | 2015-12-10 | |||||
| Atomic structure and correlated electronic properties of un-doped and doped Bi2Se3(0001) surfaces | Invited Talk | 2017-11-25 | |||||
| Undoped and doped Bi2Se3(0001) surface: Atomic structures and correlated electronic properties | Invited Talk | 2018-07-06 | |||||
| Solid State Physics: Conceptual and problem based approach | Invited Talk | 2020-10-08 | |||||
| Invited speaker at the value-added e-workshop - Energetic Beam Technology: From Materials Engineering to Diagnostics | Speaker | 2021-06-25 | |||||
| Invited speaker in International Conference on “Electron Microscopy” & XLI Annual Meeting of Electron Microscope Society of India organized by Department of Physics and Astrophysics, University of Delhi, Delhi, India | Speaker | 2023-02-10 | |||||
| Invited speaker in International Conference on Atomic, Molecular, Material, Nano&OpticalPhysics with Applications (ICAMNOP-2023) | Speaker | 2023-12-20 | |||||