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Dr. Libu K Alexander
Associate Professor
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Academic Qualifications:
- Ph. D. Physics, Indian Institute of Technology Bombay.
- M. Sc. Physics, Cochin University of Science and Technology.
- B.Sc. Physics, Bishop Moore College, University of Kerala.
Research Topics:
Functional Materials, Environmental Remediation, Graphene, Magnetism, Chemical/Bio Sensors, SERS substrates
Academic and Administrative Responsibilities (at present):
- Director, Centre for Photonics, School of Physical Sciences
- University Co-ordinator, MHRD-GIAN Program and MHRD-SPARC program
- Academic Director, Calicut University Institute of Engineering and Technology
- Member, PG Physics, University Board of Studies.
- Member, Optometry (single board), University Board of Studies.
- Member, Photonics (single board), University Board of Studies.
- Ambassador, Association of Commonwealth Universities, UK
Academic positions held:
- Associate Professor, Dept of Physics, University of Calicut (Since May 2023)
- Assistant Professor, Dept of Physics, University of Calicut (March 2012 - May 2023)
- Assistant Professor, Dept of Physics, UC College, Aluva (March 2011 to March 2012)
- Post Doctoral Fellow, Centre for Quantum Computer Technology, ARC centre of excellence, University of New South Wales, Australia (August 2008 to January 2011)
- Post Doctoral Fellow, Laborataire de Physique des Solides (LPS), Université Paris-Sud, Orsay, Paris, France (July 2007 to August 2008)
Publications (selected):
- Dual-functional MnS nanomaterials: Efficient adsorbent for phosphate removal and sonocatalyst for textile dye degradation, Sravandas P, Libu K. Alexander, Journal of Physics and Chemistry of Solids, 196,112409 (2025).
- 3D-Micro-Flower like BiOBrCl Nanoplate Solid Solution: A facile and rapid room-temperature synthesis with excellent photocatalytic decomposition of antibiotics in water.P. Sravandas, Libu K. Alexander, Colloids and Surfaces A, Physicochemical and Engineering Aspects, 135748, (2024).
- A novel polymer nanocomposite system for rapid dimethyl phthalate toxicity removal. Anju, K., Libu K. Alexander, Polymer Bulletin (2024).
- Isotype BiVO4 heterostructure and the effect of photo-sono induced electron-hole pair, P. Sravandas, Libu K. Alexander, Journal of Environmental Chemical Engineering,12 (5),113240,(2024)
- The concentration-dependent effect of NaOH on graphene oxide: Revisited as a reducing agent, Aruna Unnikrishnan, Libu K. Alexander, Journal of Physics and Chemistry of Solids,190,111978,(2024)
- Ascorbic acid sensing utilizing graphene oxide based on UV–Visible bathochromic shift, Unnikrishnan, A., Megha, V. & Alexander, L.K, J Mater Sci: Mater Electron 35, 904 (2024)
- Extremely low-frequency plasmonic state achieved in AC-ZnO polymer composite for tuned negative permittivity applications, Anju K, Libu K. Alexander, Materials Research Bulletin,172,112649 (2024)
- Organic dye sequestration using Graphene Oxide–Activated Carbon (GOAC) composite unaided by linker molecule, Unnikrishnan, A., Alexander, L.K., J Mater Sci: Mater Electron 35, 417 (2024)
- Fast catalytic degradation of an industrial surfactant driven by Hemi-micellization on facile synthesized CuS nanoflower, P. Sravandas, L. K. Alexander, Emergent mater. 7, 209–220 (2024)
- Role of functional groups and morphology on the pH-dependent adsorption of a cationic dye using banana peel, orange peel, and neem leaf bio-adsorbents, B Thomas, Shilpa, E.P. & L K Alexander, Emergent mater. 4, 1479–1487 (2021)
- Removal of Pb2+ and Cd2+ toxic heavy metal ions driven by Fermi level modification in NiFe2O4–Pd nano hybrids, B Thomas, LK Alexander, J. Sol. State Chem. 288, 121417 (2020).
- Nanoreactor based enhancement of photocatalysis with Co0.7Zn0.3Fe2O4@ SrTiO3 core-shell nanocomposites, B.Thomas, L. K. Alexander, J. Alloys and Comp. 788, 257-266(2019).
- Strain induced optical properties of perovskite LaFeO3. Vidyarajan N, L. K. Alexander, Mat. Res. Express 6, 015610 (2018).
- Enhanced synergetic effect of Cr(VI) ion removal and anionic dye degradation with superparamagnetic cobalt ferrite meso– macroporous nanospheres, B.Thomas, L. K. Alexander, Appl. Nanosci. 8, 125-135 (2018).
- Graphene/BiVO4/TiO2 nanocomposite: tuning band gap energies for superior photocatalytic activity under visible light, A.R, Nanakkal, L. K. Alexander, J. Mat. Sci. 52, 7997(2017).
- Photocatalytic activity of graphene/ZnO nanocomposite fabricated by two-step electrochemical route. A.R, Nanakkal, L. K. Alexander, J. Chem. Sci. 129, 95 (2017).
- Impurity effects in coupled-ladder BiCu2PO6 studied by NMR and quantum Monte Carlo simulations, L. K. Alexander, J. Bobroff, A. V. Mahajan, B. Koteswararao, N. Laflorencie, F.Alet, Phys. Rev. B 81, 054438/1-9 (2010).
- Doping effects in the coupled, two-leg spin ladder BiCu2PO6, B. Koteswararao, A. V. Mahajan, L. K. Alexander, J. Bobroff, J. Phys-Cond. Matt. 22, 035601/1-9 (2010).
- Low Temperature nuclear orientation studies of the magnetic structures of RNiAl4 in applied magnetic fields, W.D. Hutchison, L. K. Alexander, K. Nishimura, Hyperfine Interactions(springer) 197:111–115 (2010).
- Impurity-Induced Magnetic Order in Low-Dimensional Spin-Gapped Materials, J. Bobroff, N. Laflorencie, L. K. Alexander, A. V. Mahajan, B. Koteswararao, P. Mendels, Phys. Rev. Letters 103, 047201/1-4 (2009).
- Vortex dynamics and frustration in two-dimensional triangular chromium lattices, M. Hemmida, H.-A. Krug von Nidda, N. Büttgen, A. Loidl, L. K. Alexander, R. Nath, V. Mahajan, R. F. Berger, R. J. Cava, Yogesh Singh, and D. C. Johnston, Phys. Rev. B 80, 054406/1-5 (2009).
- Spin dynamics in Heisenberg triangular antiferromagnets: A μSR study of LiCrO2, Olariu, P. Mendels, F. Bert, L. K. Alexander, A. V. Mahajan, A. D. Hillier, A.Amato, Phys. Rev. B 79, 224401/1-5 (2009).
- 7Li NMR studies on the triangular lattice system LiCrO2, L. K. Alexander, N. Buttgen, R. Nath, A. V. Mahajan, A. Loidl, Phys. Rev. B 76, 064429/1-8 (2007).
Research Group:
PhD Students:
- Anju K (Polymer Nanocomposite based Phthalate Sensors)
- Sravandas P (Environmental Remediation)
- Aruna Unnikrishnan (Tuning properties of Graphene)
- Reshmi KP. (Electrochemical sensing)
PhD awarded:
- Ahamad Raseen Nanakkal (Graphene- Metal Oxide Nanocomposites for Photocatalysis
- Vidyarajan N (Graphene – Perovskite Interface)
- Bintu Thomas (Surface Modified Magnetic Nanoparticles)
MPhil awarded:
- Geeshpath GK
- Anju Parveen KA
- Reshma Rajan
- Anusha K
- Swathi AC
- Aruna Unnikrishnan
- Pranav Premdas
- Vishnupriya KS
MSc Projects: 30 completed
Research Projects:
- Principal Investigator, “Development of Graphene composites and magnetically recoverable composites for water purification by photocatalysis” KSCSTE, Rs 33,00,000
- Principal Investigator, Characterization studies and tuning magnetic properties of Graphene nanocomposites, UGC, Rs 6,00,000