Kean Pah Lim

ORCID: 0000-0002-5414-2093
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About
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Research Areas
  • Magnetic and transport properties of perovskites and related materials
  • Physics of Superconductivity and Magnetism
  • Advanced Condensed Matter Physics
  • Superconductivity in MgB2 and Alloys
  • Magnetic Properties of Alloys
  • Multiferroics and related materials
  • Rare-earth and actinide compounds
  • Thermal Expansion and Ionic Conductivity
  • ZnO doping and properties
  • Magnetic properties of thin films
  • Gas Sensing Nanomaterials and Sensors
  • Iron-based superconductors research
  • Shape Memory Alloy Transformations
  • Chalcogenide Semiconductor Thin Films
  • Superconducting Materials and Applications
  • Boron and Carbon Nanomaterials Research
  • Transition Metal Oxide Nanomaterials
  • Electronic and Structural Properties of Oxides
  • Magnetic Properties and Synthesis of Ferrites
  • Metallic Glasses and Amorphous Alloys
  • Ferroelectric and Piezoelectric Materials
  • Advanced Thermoelectric Materials and Devices
  • Copper-based nanomaterials and applications
  • Copper Interconnects and Reliability
  • Metal and Thin Film Mechanics

Universiti Putra Malaysia
2016-2025

Nanyang Technological University
2009-2010

Multimedia University
2009

In this study, nanosized of Pr0.67Sr0.33MnO3 prepared via sol-gel method followed by heat treatment at 600–1000 °C in intervals 100 were synthesized. The structure, surface morphology, electrical, magneto-transport and magnetic properties the samples investigated. Rietveld refinements X-ray diffraction patterns confirm that single phase orthorhombic crystal structure with space group Pnma (62) is formed 600 °C. A strong dependence electrical on grain size have been observed manganites...

10.1016/j.rinp.2018.04.032 article EN cc-by-nc-nd Results in Physics 2018-04-22

La0.7Sr0.3MnO3 (LSMO) and Nd0.7Sr0.3MnO3 (NSMO) possess excellent colossal magnetoresistance (CMR). However, research work on the neodymium-based system is limited to date. A comparative study between LSMO NSMO prepared by sol–gel solid-state reaction methods was undertaken assess their structural, microstructural, magnetic, electrical, magneto-transport properties. X-ray diffraction structure refinement showed formation of a single-phase composition. Sol–gel-synthesised revealed be sample...

10.3390/coatings11030361 article EN Coatings 2021-03-22

Water pollution has emerged as a critical global challenge, particularly the contamination of water bodies with persistent organic pollutants such Bisphenol S (BPS), known endocrine disruptor. This study presents synthesis and application eco-friendly bio-based coconut shell magnetic biochar (CSMB) for efficient sequestration BPS from aqueous environments. Utilizing pyrolysis co-precipitation techniques, was characterized through various methods including surface chemistry (pHpzc), electron...

10.1080/00986445.2024.2389134 article EN Chemical Engineering Communications 2024-08-13

In contrast to most transition metal dichalcogenides (TMDs), which are usually semiconducting, the 1T phase of vanadium disulfide (VS2) exhibits conductive characteristics, provide efficient electrical conductivity for rapid electron transit. Its outstanding physical and chemical properties make it a promising nanodevice candidate. This work addresses limited research on mechanical characteristics 1T-VS2 (space group P-3m1) facilitates analysis many aspects from an atomic perspective. this...

10.37934/armne.32.1.3445 article EN Journal of Advanced Research in Micro and Nano Engieering 2025-04-30

Sintering significantly influences the phase composition and crystal structure of high-temperature superconductors, such as yttrium barium copper oxide (YBa2Cu3O7-δ, YBCO) bulk ceramics, thereby impacting their superconductivity. This study investigates effects various sintering temperatures (920 °C, 950 980 °C) on formation, AC susceptibility, superconducting transition temperature (Tc) in pure YBCO ceramics synthesized via traditional solid-state reaction method (SSR). Characterization...

10.17576/jsm-2025-5405-18 article EN Sains Malaysiana 2025-05-28

YBa2Cu3O7−δ (Y-123) bulk superconductors with the addition of (0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 wt.%) SnO2 nanoparticles were synthesised via a thermal treatment method. The influence on superconducting properties by means critical temperature, Tc, AC susceptibility, phase formation microstructures, including its elemental composition analysis, studied. Sharp transition, ∆Tc, diamagnetic transition obtained for all SnO2-added samples. It was observed that sample x = 0.4 Y-123 percentage...

10.3390/ma12010092 article EN Materials 2018-12-28

The development of high-temperature superconductor (HTS) YBa2Cu3O7~δ (Y123) bulks in industrial applications were established years ago. It is one the developments that currently attracts great attention especially transportation, cables and wires. This study focused on preparation Y123 bulk superconductors by thermal treatment method due to promising ways develop high-quality with its simplicity, low cost, relatively reaction temperature used during process. added graphene nanoparticles (x...

10.3390/coatings12010091 article EN Coatings 2022-01-13
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