Dr. B. Sathyamoorthy

@dsu.edu.in

Assistant Professor of Physics
Dayananda Sagar University, Bangalore

Dr. B. Sathyamoorthy


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https://researchid.co/rbsathyamoorthy

RESEARCH, TEACHING, or OTHER INTERESTS

Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Materials Science, Ceramics and Composites
8

Scopus Publications

184

Scholar Citations

5

Scholar h-index

3

Scholar i10-index

Scopus Publications

  • Field-induced ferromagnetism and enhanced electrical conductivity in sol-gel synthesized Sm0.5Ca0.25Sr0.25CoO3 nanoparticles
    B. Sathyamoorthy, G. Chandrasekaran
    Materials Science and Engineering B, 2026
  • Structural, electrical and magnetic properties of Sr doped nickel ferrite using sol-gel auto combustion route
    Raja, Akhil Alexander, B. Sathyamoorthy, G. Chandrasekaran
    Aip Conference Proceedings, 2019
    Nanocrystalline undoped and strontium doped nickel ferrite particles are synthesized using sol-gel auto combustion method with citric acid as the chelating agent. X-ray diffraction patterns reveal the formation of pure spinel ferrite structure with lattice parameters of 8.329 Å and 8.332 Å for undoped and Sr doped nanoparticles respectively. FTIR spectra show two main absorption bands such as the stretching and bending vibrations of the prepared spinel ferrite. The high-frequency absorption band υ1 at 592-584 cm−1 is assigned to the stretching vibration of the tetrahedral metal-oxygen and lower frequency absorption band υ2 at 403-406 cm−1 is attributed to the vibrations of octahedral (Fe-O) modes of Ni1-xSrxFe2O4. The Raman spectra confirm the formation of cubic spinel structure. The prepared Ni1-xSrxFe2O4 samples show five active modes such as A1g+ Eg+3T2g. AC electrical conductivity of prepared samples show frequency-dependent behaviour and it obeys the Jonscher’s universal power law. The conductivity increases with increasing frequency. It indicates that the conductive grains become more active thereby promoting the hopping between Fe3+ and Fe2+ ions, which enhance the hopping conduction. The dielectric constant decreases sharply at low frequency region and attains constant value at high frequency. The magnetic measurements of Ni1-xSrxFe2O4 nanoparticles are measured at 10 K and 300 K. It shows that increased coercivity and good saturation at 10 K due to strontium doping.
  • Observation of spin glass ordering and Griffiths-like phase in polycrystalline Sm0.75Sr0.25CoO3 nanoparticles
    B. Sathyamoorthy, A. Raja, G. Chandrasekaran
    Journal of Materials Science Materials in Electronics, 2018
  • Observation of magneto-electric coupling in Sm0.5Sr0.5CoO3 nanoparticles
    B. Sathyamoorthy, A. Raja, G. Chandrasekaran
    Journal of Materials Science Materials in Electronics, 2018
  • Structural, dielectric and magnetic properties of Gd substituted manganese ferrite nanoparticles
    C Murugesan, B Sathyamoorthy, G Chandrasekaran
    Physica Scripta, 2015
    Gd3+ ion-substituted manganese ferrite nanoparticles with the chemical formula MnGdxFe2-xO4 (x = 0.0, 0.05, and 0.1) were synthesized by sol–gel auto combustion method. Thermal stability of the as-prepared sample was analyzed using thermo gravimetric and differential thermal analysis (TG–DTA) and the result reveals that the prepared sample is thermally stable above 300 °C. Structural and morphology studies were performed using powder x-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Indexed PXRD patterns confirm the formation of pure cubic spinel structure. The average crystallite sizes calculated using Sherrer’s formula decreased from 47 nm to 32 nm and lattice constant was enhanced from 8.407 Å to 8.432 Å. The FTIR spectrum of manganese ferrite shows a high frequency vibrational band at 564 cm−1 assigned to tetrahedral site and a low frequency vibrational band at 450 cm−1 assigned to octahedral site which are shifted to 556 cm−1 and 439 cm−1 for Gd3+ substitution and confirm the incorporation of Gd3+ into manganese ferrite. SEM analysis shows the presence of agglomerated spherical shaped particles at the surface. Room temperature dielectric and magnetic properties were studied using broadband dielectric spectroscopy (BDS) and vibrating sample magnetometry (VSM). Frequency dependent dielectric constant, ac conductivity and tan delta were found to increase with Gd3+ ion substitution. The measured values of saturation magnetization decrease from 46.6 emu g−1 to 41 emu g−1 with increase in Gd3+ concentration and coercivity decreases from 179.5 Oe to 143 Oe.
  • Enhanced multiferroic properties in la and Ce co-doped BiFeO3 nanoparticles
    P. Priyadharsini, A. Pradeep, B. Sathyamoorthy, G. Chandrasekaran
    Journal of Physics and Chemistry of Solids, 2014
  • Electrical properties of samarium cobaltite nanoparticles synthesized using Sol-Gel autocombustion route
    B. Sathyamoorthy, P.M. Md Gazzali, C. Murugesan, G. Chandrasekaran
    Materials Research Bulletin, 2014
  • Dielectric properties of Mn0.5Zn0.5Fe 2O4 ferrite nanoparticles
    C. Murugesan, P. M. Md Gazzali, B. Sathyamoorthy, G. Chandrasekaran
    Aip Conference Proceedings, 2013
    Mn0.5Zn0.5Fe2O4 ferrite nanoparticles have been prepared by sol-gel auto-combustion method with a view to understand the role of oxidizer to fuel ratio (OFR) on the dielectric properties. XRD study shows the formation of cubic ferrite with spinel structure and particle size increases with the increase in concentration of fuel. Dielectric properties and AC conductivity of the sample measured at room temperature are reported. OFR plays a vital role in determining the dielectric properties and AC conductivity of the prepared samples.

RECENT SCHOLAR PUBLICATIONS

  • Field-induced ferromagnetism and enhanced electrical conductivity in sol-gel synthesized Sm0. 5Ca0. 25Sr0. 25CoO3 nanoparticles
    B Sathyamoorthy, G Chandrasekaran
    Materials Science and Engineering: B 323, 118731 , 2026
    2026.0
  • Structural, electrical and magnetic properties of Sr doped nickel ferrite using sol-gel auto combustion route
    Raja, A Alexander, B Sathyamoorthy, G Chandrasekaran
    AIP Conference Proceedings 2162 (1), 020075 , 2019
    2019.0
    Citations: 4
  • Observation of spin glass ordering and Griffiths-like phase in polycrystalline Sm0.75Sr0.25CoO3 nanoparticles
    B Sathyamoorthy, A Raja, G Chandrasekaran
    Journal of Materials Science: Materials in Electronics, 1-10 , 2018
    2018.0
    Citations: 4
  • Observation of magneto-electric coupling in Sm0.5Sr0.5CoO3 nanoparticles
    B Sathyamoorthy, A Raja, G Chandrasekaran
    Journal of Materials Science: Materials in Electronics , 2017
    2017.0
    Citations: 7
  • Structural, dielectric and magnetic properties of Gd substituted manganese ferrite nanoparticles
    C Murugesan, B Sathyamoorthy, G Chandrasekaran
    Physica Scripta 90 (8), 085809 , 2015
    2015.0
    Citations: 41
  • Enhanced multiferroic properties in La and Ce co-doped BiFeO3 nanoparticles
    P Priyadharsini, A Pradeep, B Sathyamoorthy, G Chandrasekaran
    Journal of Physics and Chemistry of Solids 75 (7), 797-802 , 2014
    2014.0
    Citations: 86
  • Electrical properties of samarium cobaltite nanoparticles synthesized using Sol–Gel autocombustion route
    B Sathyamoorthy, PMM Gazzali, C Murugesan, G Chandrasekaran
    Materials Research Bulletin 53, 169-176 , 2014
    2014.0
    Citations: 34
  • Dielectric properties of ferrite nanoparticles
    C Murugesan, PM Md Gazzali, B Sathyamoorthy, G Chandrasekaran
    AIP Conference Proceedings 1512 (1), 314-315 , 2013
    2013.0
    Citations: 8
  • Structural, Electrical and Magnetic Properties of Sr doped SmCoO3 Nanoparticles
    B Sathyamoorthy, G Chandrasekaran
  • Structural, Magnetic and Dielectric Properties of NiFe2O4 Nanoparticles
    N Somani, B Sathyamoorthy, P Priyadharsini, G Chandrasekaran
  • Effect of Ca 2 doping on the magnetic and electrical Properties of SmCoO 3 Nanoparticles
    B Sathyamoorthy, PMM Gazzali, G Chandrasekaran⃰

MOST CITED SCHOLAR PUBLICATIONS

  • Enhanced multiferroic properties in La and Ce co-doped BiFeO3 nanoparticles
    P Priyadharsini, A Pradeep, B Sathyamoorthy, G Chandrasekaran
    Journal of Physics and Chemistry of Solids 75 (7), 797-802 , 2014
    2014.0
    Citations: 86
  • Structural, dielectric and magnetic properties of Gd substituted manganese ferrite nanoparticles
    C Murugesan, B Sathyamoorthy, G Chandrasekaran
    Physica Scripta 90 (8), 085809 , 2015
    2015.0
    Citations: 41
  • Electrical properties of samarium cobaltite nanoparticles synthesized using Sol–Gel autocombustion route
    B Sathyamoorthy, PMM Gazzali, C Murugesan, G Chandrasekaran
    Materials Research Bulletin 53, 169-176 , 2014
    2014.0
    Citations: 34
  • Dielectric properties of ferrite nanoparticles
    C Murugesan, PM Md Gazzali, B Sathyamoorthy, G Chandrasekaran
    AIP Conference Proceedings 1512 (1), 314-315 , 2013
    2013.0
    Citations: 8
  • Observation of magneto-electric coupling in Sm0.5Sr0.5CoO3 nanoparticles
    B Sathyamoorthy, A Raja, G Chandrasekaran
    Journal of Materials Science: Materials in Electronics , 2017
    2017.0
    Citations: 7
  • Structural, electrical and magnetic properties of Sr doped nickel ferrite using sol-gel auto combustion route
    Raja, A Alexander, B Sathyamoorthy, G Chandrasekaran
    AIP Conference Proceedings 2162 (1), 020075 , 2019
    2019.0
    Citations: 4
  • Observation of spin glass ordering and Griffiths-like phase in polycrystalline Sm0.75Sr0.25CoO3 nanoparticles
    B Sathyamoorthy, A Raja, G Chandrasekaran
    Journal of Materials Science: Materials in Electronics, 1-10 , 2018
    2018.0
    Citations: 4
  • Field-induced ferromagnetism and enhanced electrical conductivity in sol-gel synthesized Sm0. 5Ca0. 25Sr0. 25CoO3 nanoparticles
    B Sathyamoorthy, G Chandrasekaran
    Materials Science and Engineering: B 323, 118731 , 2026
    2026.0
  • Structural, Electrical and Magnetic Properties of Sr doped SmCoO3 Nanoparticles
    B Sathyamoorthy, G Chandrasekaran
  • Structural, Magnetic and Dielectric Properties of NiFe2O4 Nanoparticles
    N Somani, B Sathyamoorthy, P Priyadharsini, G Chandrasekaran
  • Effect of Ca 2 doping on the magnetic and electrical Properties of SmCoO 3 Nanoparticles
    B Sathyamoorthy, PMM Gazzali, G Chandrasekaran⃰