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Hire SK Y.
India
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Hire Dr. S. K.

Profile Summary
Subject Matter Expertise
Services
Research Scientific and Technical Research
Work Experience

Research Assistant/Teaching Assistant

BRA BU

January 2019 - Present

Education

PhD (Physics)

IIT Patna

December 2013 - Present

Certifications
  • Certification details not provided.
Publications
JOURNAL ARTICLE
Kumar, S., Kar, M.(2022). Magnetic phase diagram of BHF-NZFO composite at room temperature . Ceramics International. 48. (20). p. 30574-30581.
Alka Singh, Kumar Mukesh Ranjan, Sunil Kumar(2021). Electrical transport mechanism of aluminum substituted barium hexaferrite magnetic semiconductor . Journal of Materials Science: Materials in Electronics. 32. (4). p. 4110--4124. Springer Science and Business Media {LLC}
Singh, A., Ranjan, K.M., Kumar, S.(2021). Electrical transport mechanism of aluminum substituted barium hexaferrite magnetic semiconductor . Journal of Materials Science: Materials in Electronics. 32. (4). p. 4110-4124.
Kumar, N., Singh, R.K., Kumar, S., Kumar, P.(2021). Tuning in optical, magnetic and Curie temperature behaviour of nickel ferrite by substitution of monovalent K<sup>+1</sup> ion of Ni<sub>0·8</sub>K<sub>0·2</sub>Fe<sub>2</sub>O<sub>4</sub> nanomaterials for multifunctional applications . Physica B: Condensed Matter. 606.
Kumar, S., Guha, S., Supriya, S., Pradhan, L.K., Kar, M.(2020). Correlation between crystal structure parameters with magnetic and dielectric parameters of Cu-doped barium hexaferrite . Journal of Magnetism and Magnetic Materials. 499.
Guha, S., Kumar, R., Kumar, S., Pradhan, L.K., Pandey, R., Kar, M.(2020). Crystal structure and magnetic properties study on ferromagnet Fe<sub>2</sub>MnSi<sub>0.75</sub>Al<sub>0.25</sub> Heusler alloy . Physica B: Condensed Matter. 579.
Kumar, S., Supriya, S., Pradhan, L.K., Pandey, R., Kar, M.(2020). Grain size effect on magnetic and dielectric properties of barium hexaferrite (BHF) . Physica B: Condensed Matter. 579.
Manglam, M.K., Kumari, S., Pradhan, L.K., Kumar, S., Kar, M.(2020). Lattice strain caused magnetism and magnetocrystalline anisotropy in Zn modified barium hexaferrite . Physica B: Condensed Matter. 588.
Kumar, S., Kumar Pradhan, L., Kumar Manglam, M., Kar, M.(2020). Magnetic interaction between BHF (BaFe<sub>12</sub>O<sub>19</sub>) and BTO (BaTiO<sub>3</sub>) in BTO – BHF nanocomposite . Journal of Magnetism and Magnetic Materials. 498.
Kumar, S., Laha, R., Kar, M.(2020). Raman Characterization of polycrystalline barium hexaferrite nanoparticles: SERS of nanoparticles in powder form . Physica B: Condensed Matter. 579.
Pandey, R., Kumar Pradhan, L., Kumari, S., Kumar Manglam, M., Kumar, S., Kar, M.(2020). Surface magnetic interactions between Bi<sub>0.85</sub>La<sub>0.15</sub>FeO<sub>3</sub> and BaFe<sub>12</sub>O<sub>19</sub> nanomaterials in (1-x)Bi<sub>0.85</sub>La<sub>0.15</sub>FeO<sub>3</sub>-(x)BaFe<sub>12</sub>O<sub>19</sub> nanocomposites . Journal of Magnetism and Magnetic Materials. 508.
Pandey, R., Pradhan, L.K., Kumar, S., Supriya, S., Singh, R.K., Kar, M.(2019). Correlation between lattice strain and physical (magnetic, dielectric, and magnetodielectric) properties of perovskite-spinel (Bi<sub>0.85</sub>La<sub>0.15</sub>FeO<sub>3</sub>)<sub>(1-x)</sub>-(NiFe<sub>2</sub>O<sub>4</sub>)<sub>(x)</sub> composites . Journal of Applied Physics. 125. (24).
Pradhan, L.K., Pandey, R., Kumar, S., Kumari, S., Kar, M.(2019). Evidence of compositional fluctuation induced relaxor antiferroelectric to antiferroelectric ordering in Bi <sub>0.5</sub> Na <sub>0.5</sub> TiO <sub>3</sub> –Bi <sub>0.5</sub> K <sub>0.5</sub> TiO <sub>3</sub> based lead free ferroelectric . Journal of Materials Science: Materials in Electronics. 30. (10). p. 9547-9557.
Kumar, S., Kumar Manglam, M., Supriya, S., Kumar Satyapal, H., Kumar Singh, R., Kar, M.(2019). Lattice strain mediated dielectric and magnetic properties in La doped barium hexaferrite . Journal of Magnetism and Magnetic Materials. 473. p. 312-319.
Guha, S., Kumar, S., Datta, S., Manglam, M.K., Kar, M.(2019). Metal to semimetal transition and magnetic critical behavior at room temperature in the full Heusler alloy Fe<sub>2</sub>MnSi . Journal of Physics D: Applied Physics. 52. (50).
Pradhan, L.K., Pandey, R., Kumar, S., Kar, M.(2019). Role of tricritical triple point type morphotropic phase boundary (multiple crystalline phases) on energy storage density in Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub> based solid solution . Materials Research Express. 6. (9).
Supriya, S., Kumar, S., Kar, M.(2019). Structural and Electrical Properties of CFO Nanoparticle- Filled PVA . Journal of Electronic Materials.
Singh, R.K., Kumar, S., Aman, A.K., Karim, S.M., Kumar, S., Kar, M.(2019). Study on physical properties of Ayurvedic nanocrystalline Tamra Bhasma by employing modern scientific tools . Journal of Ayurveda and Integrative Medicine. 10. (2). p. 88-93.
Pandey, R., Pradhan, L.K., Kumar, S., Kar, M.(2018). Crystal structure, magnetic and dielectric properties of (1-x) BiFe<sub>0.80</sub>Ti<sub>0.20</sub>O<sub>3</sub> – (x)Co<sub>0.5</sub>Ni<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> multiferroic composites . Journal of Alloys and Compounds. 762. p. 668-677.
Kumar, S., Supriya, S., Pandey, R., Pradhan, L.K., Singh, R.K., Kar, M.(2018). Effect of lattice strain on structural and magnetic properties of Ca substituted barium hexaferrite . Journal of Magnetism and Magnetic Materials. 458. p. 30-38.
Kumar, S., Supriya, S., Kar, M.(2018). Enhancement of dielectric constant in polymer-ceramic nanocomposite for flexible electronics and energy storage applications . Composites Science and Technology. 157. p. 48-56.
Supriya, S., Kumar, S., Pradhan, L.K., Pandey, R., Kar, M.(2018). Multiple electrical phase transitions in nanocrystalline aluminium-substituted cobalt ferrite . International Journal of Modern Physics B. 32. (32).
Pradhan, L.K., Pandey, R., Kumar, S., Supriya, S., Kar, M.(2018). Octahedral distortion due to oxygen vacancy reduction in La<sup>3+</sup> modified BNT-BTO solid solutions near morphotropic phase boundary . Journal of Physics D: Applied Physics. 51. (37).
Kumar, S., Supriya, S., Kar, M.(2018). PVDF, Barium Hexaferrites, and rGO Nanocomposite for High Energy Density Capacitor . IEEE Transactions on Nanotechnology. 17. (6). p. 1129-1132.
Kumar, S., Supriya, S., Kar, M.(2017). Correlation between temperature dependent dielectric and DC resistivity of Cr substituted barium hexaferrite . Materials Research Express. 4. (12).
Kumar, S., Supriya, S., Pradhan, L.K., Kar, M.(2017). Effect of microstructure on electrical properties of Li and Cr substituted nickel oxide . Journal of Materials Science: Materials in Electronics. 28. (22). p. 16679-16688.
Supriya, S., Kumar, S., Kar, M.(2017). Electrical Properties and Dipole Relaxation Behavior of Zinc-Substituted Cobalt Ferrite . Journal of Electronic Materials. 46. (12). p. 6884-6894.
Supriya, S., Kumar, S., Kar, M.(2017). Impedance and DC resistivity studies on chromium substituted cobalt ferrite . Journal of Materials Science: Materials in Electronics. 28. (14). p. 10652-10673.
Kumar, S., Supriya, S., Kar, M.(2017). Multiple electrical phase transitions in Al substituted barium hexaferrite . Journal of Applied Physics. 122. (22).
Supriya, S., Kumar, S., Kar, M.(2016). Correlation between AC and DC transport properties of Mn substituted cobalt ferrite . Journal of Applied Physics. 120. (21).
CONFERENCE PAPER
Manglam, M.K., Rout, S.N., Kumari, S., Kumar, S., Kar, M.(2022). Structural, magnetic and optical properties of (0.45) Ni<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> + (0.55) BaFe<sub>12</sub>O<sub>19</sub> composite . Materials Today: Proceedings. 57. p. 418-421.
Pandey, R., Pradhan, L.K., Kumar, S., Kar, M.(2018). AC and DC conductivity study on Ca substituted bismuth ferrite . AIP Conference Proceedings. 1953.
Supriya, S., Kumar, S., Kar, M.(2018). Band gap engineering of zinc substituted cobalt ferrite for optoelectronic applications . 2017 IEEE 12th Nanotechnology Materials and Devices Conference, NMDC 2017. 2018-January. p. 33-34.
Kumar, S., Supriya, S., Pandey, R., Pradhan, L.K., Kar, M.(2018). Crystal structure and magnetic properties of Cr doped barium hexaferrite . AIP Conference Proceedings. 1942.
Supriya, S., Kumar, S., Pandey, R., Pradhan, L.K., Kar, M.(2018). Ferroelectric like behavior in Cr substituted cobalt ferrite . AIP Conference Proceedings. 1953.
Supriya, S., Kumar, S., Kar, M.(2018). Grain size and grain boundary effect on dielectric behavior of nanocrystalline cobalt ferrite . 2017 IEEE 12th Nanotechnology Materials and Devices Conference, NMDC 2017. 2018-January. p. 165-166.
Pradhan, L.K., Pandey, R., Kumar, S., Kar, M.(2018). Lead free Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub> (BNT) and polyvinylidene fluoride (PVDF) based nanocomposite for energy storage applications . AIP Conference Proceedings. 1953.
Kumar, S., Supriya, S., Kar, M.(2018). PVDF, barium hexaferrites and rGO nanocomposite for high energy density capacitor . 2017 IEEE 12th Nanotechnology Materials and Devices Conference, NMDC 2017. 2018-January. p. 99-100.
Pradhan, L.K., Pandey, R., Kumar, S., Supriya, S., Kar, M.(2018). Role of lattice distortion on diffuse phase transition temperatures in Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-BaTiO<sub>3</sub> [BNBTO] solid solutions . AIP Conference Proceedings. 1942.
Kumar, S., Supriya, S., Pradhan, L.K., Pandey, R., Kar, M.(2018). Simultaneous effect of crystal lattice and non magnetic substitution on magnetic properties of barium hexaferrite . AIP Conference Proceedings. 1953.
Pandey, R., Guha, S., Pradhan, L.K., Kumar, S., Supriya, S., Kar, M.(2018). Study of hopping type conduction from AC conductivity in multiferroic composite . AIP Conference Proceedings. 1953.
Supriya, S., Kumar, S., Kar, M.(2017). CFO-Graphene nano composite for High Performance Electrode Material . Materials Today: Proceedings. 4. (4). p. 5651-5656.
Kumar, S., Supriya, S., Kar, M.(2017). Effect of Sintering Temperature on Electrical Properties of BHF Ceramics Prepared by Modified Sol-Gel Method . Materials Today: Proceedings. 4. (4). p. 5517-5524.
Supriya, S., Kumar, S., Kar, M.(2017). Enhanced dielectric of PVDF-CoFe<sub>1.5</sub>Cr<sub>0.5</sub>O<sub>4</sub> for capacitor application . AIP Conference Proceedings. 1832.
Kumar, S., Supriya, S., Kumar, P., Kar, M.(2016). Dielectric investigations on co-substituted bismuth ferrite (Bi<sub>1-x</sub>La<sub>x</sub>Fe<sub>1-x</sub>Mn<sub>x</sub>O<sub>3</sub>) . AIP Conference Proceedings. 1728.
Supriya, S., Kumar, S., Kar, M.(2016). Grain size effect on activation energy in spinel CoFe<sub>2</sub>O<sub>4</sub> ceramic . AIP Conference Proceedings. 1731.
Supriya, S., Kumar, S., Kar, M.(2016). Impedance spectroscopy studies in cobalt ferrite-reduced graphene oxide nanocomposite . AIP Conference Proceedings. 1728.