Ph.D. (Thesis title: Study of Structural, Magnetic and Magneto-dielectric Properties of Some Synthesized Multiferroics) in Physics, Institute of Science, Department of Physics, Banaras Hindu University, Varanasi, India; ( 2016)

M.Tech. in Ceramic Engineering (First Division With Honours), Department of Ceramic Engineering, IIT(BHU), Varanasi, India; (2012)

M.Sc. in Physics (First Division), Gurukula Kangri University, Haridwar, India; (2007)

B.Sc. (PCM) (First Division), Ch. Charan Singh University, Meerut, India; (2005)  

Achievements:

• Received MHRD fellowship during M.Tech. from IIT(BHU), Varanasi, India; (2010-2012)
• Qualified National Eligibility Test (NET) in Physics organized by CSIR & UGC, New Delhi, India; (2011)
• Qualified Graduate Aptitude Test in Engineering (GATE) in Physics two times organized by IITs, India; (2010 & 2012)
• Qualified Join Entrance Screening Test (JEST) in Physics organized by Indian Research Institutes; (2010)

• Assistant Professor (Level-11), Department of Physics, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India; (08 years till January 2021)
• Managing Guest Editor, Journal of Materials Today Proceedings (Elsevier)

Research Interest:

Novel Functional Ferroic Materials:

• Multiferroic materials
• Magnetoelectric memory materials
• Magnetoelectric coupling in BiFeO₃-based composites/solid solutions
• Magnetoelectric coupling in doped CoFe₂O₄ and CoFe₂O₄-ferroelectric/multiferroic composites
• Low temperature magnetic and transport properties of half metallic LaSrMnO₃-based nanocomposites

Multiferroics - Multiferroic materials are those that possess more than one ferroic properties simultaneously that are coupled. Usually broad transitions in dielectric spectra are observed in many of these multiferroic candidates that are reported in literature either as relaxor ferroelectrics with frustrated ferroelectricity or are explained on the basis of Maxwell-Wagner capacitor model that suggests that the observed relaxation and dielectric enhancement may be the artefacts of space charge contributions. The ferromagnetic transition temperature near this broad transition in dielectric spectra confirms the evidance of magnetoelectric coupling. An important issue faced by the researchers in the field is thus to establish the origin of broad transitions usually observed in dielectric spectra.

DMS:

• Magnetic nanoparticles, diluted magnetic semiconductor

Photovoltaics (Perovskite Solar Cells):

• Perovskite Solar Cell for high performance photovoltaic parameters
• Organic-inorganic and purely inorganic Perovskite Solar Cells

First Principal DFT Calculations:

• Electronic structure calculations of solids using density functional theory (DFT) by Wien2K Software

Key Skills:

• XRD for structural investigation
• SEM/TEM for surface morphology and microstructure
• Electronic and Magnetic-transport properties from low temperature to RT
• VSM for magnetization measurement
• P-E loop tracer for P vs E and P vs M measurement
• LCR meter for Magneto-dielectric measurement
• Impedance Analyzer for dielectric, conductivity and impedance spectroscopy measurement
• SCAPS-1D simulation software for inorganic and hybrid (Organic-inorganic) Perovskite Solar Cell heterostructures

Details of Significant Contributions (Main Objectives of Our Research Group):

Till now, we have synthesized and optimized various noval multiferroic materials and study their basic as well as advanced physical properties. Now, efforts have been made to prepare thin films as well as other nanostructures for the various device applications. Apart from it, as we all know that the green energy is the real need of the time of the whole world, we have started work on the lead-free perovskite solar cells (purely inorganic as well as organic-inorganic halide perovskites) and optimized various hetrostructures via computational approch (SCAPS-1D simulation). Now, efforts have been made to make these comutaional simulation in the real experimental work and give a real replacement in solar cells with cost effcetive, green maerial based Solar Pannels to whole world.

Although, other key problems that we want to consider are as follows:

• Room temperature ME coupling in the novel functional materials
• Low leakage and high remenancy
• New exact mechanism for the achievement of ME coupling
• Control and understanding of dynamics on the switching
• Exploration of quantum criticality
• Ultrathin films with robustly coupled FE–magnetic order parameters at room temperature
• Reduction in the voltage near 100 mV for the materials
• Develop a design for FE material, with ultralow power (attojoule) and stable polarization (~1–5 mC/cm²)
• Compatibility with conventional silicon technology processing method need to be addressed for new generation device applications with improving functionalities
• Searching materials of high performance photovoltaic parameters via simulation as well as experimental approaches
• Interested to develope green (lead-free) materials-based Solar Cells to develope environment friendly Solar Pannels with reduced cost

• Electricity, Magnetism and Electromagnetic Theory
• Elements Modern Physics
• Quantum Mechanics
• Solid State Physics
• Physics of Devices and Instruments
• Basic Physics Laboratory
• Digital Electronics Laboratory
• Elements Modern Physics Laboratory

List of Ongoing/Completed/Submitted Reserach Projects (Major/Minor Grants):

Research Collaborations:

• Prof. Anup K. Ghosh, Dept of Physics, BHU, Varanasi India
• Prof. O. P. Thakur, Dept. of Physics, NSIT, University of Delhi, India
• Prof. Oscar Raymond Herera, Universidad Nacional Autónoma de México
• Prof. J.M. Siqueiros, Universidad Nacional Autónoma de México
• Prof. Om Parkash, Dept. of Ceramic Engineering, IIT(BHU), Varanasi, India
• Prof. Devendra Kumar, Dept. of Ceramic Engineering, IIT(BHU), Varanasi, India
• Prof. Sandeep Chatterjee, Dept. of Physics, IIT(BHU), Varanasi, India
• Dr. Ashok Kumar (Scientist E-II), National Physical Laboratory, New Delhi, India
• Dr. Avneesh Anshul (Scientist) , AMPRI, Bhopal, India
• Dr. Arvind Kumar, Dept. of Physics, ARSD College, University of Delhi, India
• Dr. Shiv Kumar, Hiroshima University, Japan
• Dr. Ajit Kumar, Yeungnam University, Republic of Korea
• Dr. Subhash Sharma, Universidad Nacional Autónoma de México
• Prof. Pramod Kumar Singh, SBSR, Sharda University, Gr. Noida
• Prof. Ram Chandra Singh, SBSR, Sharda University, Gr. Noida
• Dr. Abhishek Singh Rajput, TIFR, Mumbai, India
• Dr. Brijmohan Prajapati, Deshbandhu College, University of Delhi, India

Research Publications: International Journal Publications :

• 53 published and 05 under review (Peer Reviewed and Scopus Indexed)
• Corresponding author publications after Ph.D.: 16
• Total Corresponding author publications: 23
• Total (Corresponding + First) author publications: 29
• Managing Guest Editor, Materials Today Proceedings (Elsevier)
• Acting as a Reviewer for various International Journals of high repute
• Best Reviewer recognition award by various International Journals of high repute

Typical Published Journals of high repute and their impact factors:

• Applied Physics Letters (3.597)
• Journal of Applied Physics (2.370)
• Journal of Alloys and Compounds (4.650)
• Material Letters (3.204)
• Journal of Materials Chemistry C (7.059)
• RSC Advances (3.119)
• Journal of Materials Science: Materials in Electronics (2.22)
• Physics E (3.57)
• Ceramic International (3.830)
• Optical Materials (2.779)
• OPTIK (2.187)
• Journal of Electronic Materials (1.774)
• Chemical Physics (1.771)
• The European Physical Journal Plus (3.228)
• Solid State Communications (1.521)
• Materials Today Communications (2.678)

List of International Research Publications:

Talk and Participation in International/National Conferences/Webinar/OC/FDP/RC:

• Coordinator, Department of Physics (2020-2021)
• Lead Guest Editor, Materials Today Proceedings (Elsevier)
• Coordinator, Campus Improvement Committee (2018-2020)
• Administrative Officer, SOL, ARSD College Center of  University of Delhi
• COVID19 Task Force member for College
• NIRF Committee member for College
• NAAC  Committee Member for College
• Coordinator, Practical Examination
• Head Examiner, University Paper Setting Committee
• Convener, Departmental Admission Committee B.Sc. (Honours & Physical Science)
• Acting as a Reviewer for many International Journals of high repute
• Co-convener, Online National conference (RAFM-2020)

• Under the two research projects (Innovation and Star Innovative) funded by University of Delhi, more than twenty undergraduate students have been trained with the basic synthesis methods and published their work in international journals of repute including the participation and presentation in various national and international conferences.
• We have achived and trying to do more to trained our undergraduate students and want to develop their interest in reserach.
• Always welcome to outsider (national and/international) students of graduate or postgraduate level those are looking for the reserach projects (minimum six months duration). Such students can directly mail to me and follow the proper channel.
• Ph.D Student (Under joint supervision of CSIR-NEERI, Nagpur, India):                                          (1) Mr. Abhishek Raj (pursuing)

Reviewer of the following international journals:

• Scientific Reports (Nature Publishing Group)
• Materials Research Bulletin (Elsevier Publising Group)
• Journal of Materials Science: Materials in Electronics 
• Journal of Electronic Materials 
• Chemical Physics 
• Journal of Electroanalytical Chemistry
• Journal of Computational Electronics and many more