Asokan Kandasami

ORCID: 0000-0002-0613-219X
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About
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Research Areas
  • ZnO doping and properties
  • Chalcogenide Semiconductor Thin Films
  • Advanced Thermoelectric Materials and Devices
  • Ion-surface interactions and analysis
  • Electronic and Structural Properties of Oxides
  • Copper-based nanomaterials and applications
  • Multiferroics and related materials
  • Semiconductor materials and devices
  • Advanced Photocatalysis Techniques
  • Gas Sensing Nanomaterials and Sensors
  • Quantum Dots Synthesis And Properties
  • Magnetic properties of thin films
  • Ferroelectric and Piezoelectric Materials
  • Transition Metal Oxide Nanomaterials
  • Magnetic and transport properties of perovskites and related materials
  • Ga2O3 and related materials
  • Advanced Semiconductor Detectors and Materials
  • Diamond and Carbon-based Materials Research
  • Integrated Circuits and Semiconductor Failure Analysis
  • Thermal properties of materials
  • Advanced Condensed Matter Physics
  • Advanced Memory and Neural Computing
  • Magnetic Properties and Synthesis of Ferrites
  • Nuclear materials and radiation effects
  • Dielectric properties of ceramics

University of Petroleum and Energy Studies
2021-2025

Inter-University Accelerator Centre
2015-2024

University of Delhi
2020-2021

Jamia Millia Islamia
2020-2021

Institute of Physics, Bhubaneshwar
2021

National Synchrotron Radiation Research Center
2021

Tamkang University
2021

Nanyang Technological University
2020

Kyushu Institute of Technology
2020

Yamaguchi University
2020

The present study focuses on the effects of nitrogen (N) ion implantation in vertically aligned ZnO nanorod arrays (NRAs) and photocatalytic degradation acetaminophen. X-ray diffraction these NRAs exhibit a wurtzite structure with predominant (002) peak that shifts slightly after N-ion implantation. field emission scanning electron microscopic images as-prepared show length ∼4 μm diameter ∼150 nm. UV–visible spectroscopy reveals band gap pristine decreases from 3.2 to 2.18 eV Under visible...

10.1021/acsomega.9b00557 article EN publisher-specific-oa ACS Omega 2019-07-10

Superparamagnetic N-doped graphene oxide (GO)- with ZnS nanowires was synthesized by a one-step hydrothermal method doping dilute amounts of Ga, Cr, In, and Al ions for water treatment biomedical applications. In these experiments, to enhance their properties, 2% Ga3+, In3+, or Al3+ were codoped along Cr in nanowires. The nanocomposite the composition, In0.02Cr0.02Zn0.96S, has better photocatalytic efficiency than other co-doped nanocomposites. (metalloids) (transition metal ion) are best...

10.1038/s41598-023-33453-z article EN cc-by Scientific Reports 2023-05-10

The electrical device characteristics of Ni/β-Ga2O3 vertical Schottky barrier diodes (SBDs) were measured in situ during the irradiation 120 MeV Ag7+ swift heavy ions (SHIs). These devices exhibit SHI irradiation-induced degradation with ion fluence ranges 1 × 1010 to 1012 ions/cm2. height is found decrease from 1.11 0.93 eV, and ideality factor increases 1.16 2.06. changes indicate irradiation. A significant four orders increase observed leakage current density 4.04 10−8 1.98 10−4 A/cm2 at...

10.1063/5.0024944 article EN Applied Physics Letters 2020-10-05

Abstract The SrTiO 3 thin films were fabricated by pulsed laser deposition. Subsequently ion implantation with 60 keV N ions at two different fluences 1 × 10 16 and 5 ions/cm 2 followed annealing was carried out. Thin then characterized for electronic structure, morphology transport properties. X-ray absorption spectroscopy reveals the local distortion of TiO 6 octahedra introduction oxygen vacancies due to implantation. electrical thermoelectric properties these measured as a function...

10.1038/s41598-019-51079-y article EN cc-by Scientific Reports 2019-10-09

The rapidly evolving utilization of spin Hall effect (SHE) arising from spin-orbit coupling in $5d$ transition metals and alloys has made giant strides the development designing low-power, robust, nonvolatile magnetic memory. Recent studies, on incorporating nonmetallic lighter elements such as oxygen, nitrogen, sulfur into metals, have shown an enhancement dampinglike torque efficiency ${\ensuremath{\theta}}_{\mathrm{DL}}$ due to modified SHE, but mechanism behind this is not clear. In...

10.1103/physrevb.107.064402 article EN Physical review. B./Physical review. B 2023-02-01

Abstract High efficiency of charge–spin interconversion in spin Hall materials is a prime necessity to apprehend intriguing functionalities spin–orbit torque for magnetization switching, auto‐oscillations, and domain wall motion energy‐efficient high‐speed spintronic devices. To this end, innovations fabricating advanced that possess not only large conversion but also viable electrical conductivity are importance. Here, new material designed by implanting low energy 12 keV sulfur ions heavy...

10.1002/qute.202000112 article EN Advanced Quantum Technologies 2020-12-03

Damping-like torque (DLT) arising from the spin Hall effect (SHE) in heavy metals and their alloys has been widely explored for applications spin–orbit MRAM, auto-oscillations, waves, domain wall motion. In conventional materials, DLT efficiency is limited by intrinsic properties, while attaining strong coupling higher spin-charge interconversion, with no compromise to electric need of hour. this Letter, we report more than 3.5 times increase efficiency, θDL, modified Pt-oxide employing a...

10.1063/5.0054779 article EN Applied Physics Letters 2021-06-21

Abstract This investigation explores the potential of co‐incorporating nickel (Ni) and cobalt (Co) into copper oxide (CuO) nanostructures for bifunctional electrochemical charge storage oxygen evolution reactions (OER). A facile wet chemical synthesis method is employed to co‐incorporate Ni Co CuO, yielding diverse nanostructured morphologies, including rods, spheres, flake. The X‐ray diffraction (XRD) Raman analyses confirmed formation NiCo‐CuO nanostructure, with minor phases (NiO)...

10.1002/smtd.202401463 article EN Small Methods 2025-01-15

Abstract We show progressive enhancement in ferroelectric polarization with increasing Sm doping concentration along retrieving tetragonality from the hexagonal paraelectric phase for Ba1-xSmxFe0.2Ti0.8O3 (BTO) solid solution (x = 0, 0.10, 0.15, 0.20). The cooperative off-centering phenomenon due to octahedral distortion promotes interpolar clustering resulting formation of polar nano region causing an saturation and coercive field doping. Ferroelectric domain fringes observed scanning...

10.1088/1361-648x/adc52d article EN Journal of Physics Condensed Matter 2025-03-25
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