Associate Professor

Dr Laxmi Narayana Patro

Department of Physics


  1. Solid state ionics
  2. Materials for solid state batteries and chemical sensors
  3. Nonlinear conductivity



KSUB College


Berhampur University


IIT Madras


  • July 2016 - June 2018, Assistant Professor | GITAM University, Bangalore
  • January 2014 - January 2016, Postdoctoral Researcher | University of Marburg, Marburg, Germany
  • March 2012 - August 2013, Postdoctoral Fellow | Seoul National University, Seoul, South Korea

Research Interest

  • Charge transport and glassy dynamics of glass forming ionic liquids at higher electric fields using impedance spectroscopy.
  • Synthesis and characterization of fast ion conducting solid materials for energy storage applications
  • Nonlinear conductivity measurement at higher electric fields: Frequency dependence of higher order conductivity coefficients.
  • Defect structure of oxide materials in different thermodynamic conditions (temperature and oxygen partial pressure).
  • Ionics of Nano structured materials, Thin films, Glassy and Polymer electrolytes.
  • Dielectric studies and relaxation mechanisms
  • Fabrication and characterization of solid state ionic devices such as batteries, sensors

Awards & Fellowships

  • 2002 – 1st rank for the university in the B.Sc. Program – Berhampur University, Odisha
  • 2004 – 2nd rank for the university in the M.Sc. Program – Berhampur University, Odisha
  • 2005 – Qualified Graduate Aptitude Test in Engineering (GATE-2005) with 94.03 percentile
  • 2008 – Poster award - 53rd DAE solid state physics symposium, BARC, Mumbai


  • American Physical Society


  • Y. B. Rao, K. R. Achary, K. K. Bharathi, and L. N. Patro*, Enhanced ionic conductivity of Na-excess Na3Zr2Si2PO12 solid electrolyte by tuning its elemental composition and sintering temperature, Journal of Materials Science, 58, 2222 (2023) IF: 4.682
  • Y. B. Rao, K. R. Achary, and L. N. Patro*, Enhanced electrochemical performance of the Na3V2(PO4)3/C cathode materials upon doing with Mn/Fe for Na-ion batteries, ACS omega, 7, 48192 (2022) IF: 4.132
  • K. R. Achary, Y. B. Rao, D. Bhosale, and L. N. Patro*, Fast ion transport in mechanochemically synthesized SnF2 based solid electrolyte, NH4Sn2F5, Solid State Ionics, 388, 116083 (2022) IF: 3.699
  • Y. B. Rao, and L. N. Patro*, Influence of synthesis methodology and excess Na on the ionic transport properties of natrium super ionic conductor, Na3Zr2Si2PO12, Materials Letters, 301, 130267 (2021) IF: 3.574
  • K. R. Achary, Y. B. Rao, and L. N. Patro*, Structural and transport properties of mechanochemically synthesized La0.9Ba0.1F2.9 and La0.9Ba0.05Ca0.05F2.9, Materials Letters, 301, 130337 (2021) IF: 3.574
  • Y. B. Rao, K. K. Bharathi, and L. N. Patro*, Review on the synthesis and doping strategies in enhancing the Na ion conductivity of Na3Zr2Si2PO12 (NASICON) based solid electrolytes, Solid State Ionics, 366-367, 115671 (2021) IF: 3.699
  • C. Mahata, S. Ghosh, S. Chakraborty, L. N. Patro, A. Tripathi, R. Thapa, S. Ramakrishna, S. Kim, and G. K. Dalapati, Charge trapping characteristics of sputter-AlOx/ALD-Al2O3/epitaxial-GaAs based nonvolatile memory, Journal of Materials Science: Materials in Electronics, 32, 4157 (2021) IF: 2.779
  • L. N. Patro*, Role of mechanical milling on the synthesis and ionic transport properties of fast fluoride ion conducting materials, Journal of Solid-State Electrochemistry, 24, 2219 (2020) IF: 2.747
  • S. Subash, S. Yasui, S. Yasuhara, L. N. Patro, and K. Kamala Bharathi, Evaluation of band edge parameters, Li ion dynamics and excellent electrochemical properties of Li4Ti5O12 thin films, Electrochimica Acta, 354, 136741 (2020) IF: 7.336
  • B. Roling, L. N. Patro, O. Burghaus and M. Gräf, Nonlinear ion transport in liquid and solid electrolytes, The European Physical Journal Special Topics, 226, 3095 (2017) IF: 2.891
  • L. N. Patro*, O. Burghaus and B. Roling, Nonlinear permittivity spectra of supercooled ionic liquids: Observation of a “hump” in the third-order permittivity spectra and comparison to double-well potential models, Journal of Chemical Physics, 146, 154503 (2017) IF: 4.304
  • L. N. Patro*, O. Burghaus and B. Roling, Anomalous Wien Effects in Supercooled Ionic Liquids, Physical Review Letters, 116, 185901 (2016) IF: 9.185
  • U. Kodam, V. Vaithyanathan, L. N. Patro, S. S. R. Inbanathan and K. K. Bharathi, Temperature-dependent magnetization, anisotropy and conductivity of CoFe2-xSnxO4 (x = 0.025, 0.05, 0.075): appearance of grain boundary conductivity at high temperatures, Journal of Physics D: Applied Physics, 49, 305001 (2016) IF: 3.409
  • L. N. Patro*, O. Burghaus and B. Roling, Nonlinear ion transport in the supercooled ionic liquid 1-hexyl-3methylimidazolium bis(trifluromethylsulfonyl)imide: Frequency dependence of third-order and fifth-order conductivity coefficients, Journal of Chemical Physics, 142, 064505 (2015) IF: 4.304
  • V. Vaithyanathan, L. N. Patro, U. Kodam, H. Tan, S. S. R. Inbanathan, and K. K. Bharathi, Evolution of grain boundary conduction with increasing temperature in pure and Ti doped Co ferrite materials, Journal of Applied Physics, 118, 114102 (2015) IF: 2.877
  • K. K. Bharathi, G. Ramesh, L. N. Patro, N. R. C. Raju and D. K. Kim, Enhanced ferromagnetic properties and high temperature dielectric anomalies in Bi0.9 Ca0.05 Sm0.05 FeO3 prepared by hydrothermal method, Materials Research Bulletin, 62, 5 (2015) IF: 5.6
  • L. N. Patro*, K. K. Bharathi and N. R. C. Raju, Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles, AIP Advances, 4, 127139 (2014) IF: 1.697
  • H. Jang, J. Brendt, L. N. Patro, M. Martin and H. I. Yoo, Unexpected thermoelectric behavior and immiscibility of the allegedly complete solid solution Sr(Ru1–xTi x)O3, Physical Review B, 89, 144107 (2014) IF: 3.908
  • L. N. Patro*, N. R. C. Raju, S. R. Meher and K. K. Bharathi, Physical properties of high-performance fluoride ion conductor BaSnF4 thin films by pulsed laser deposition, Applied Physics A, 112, 727 (2013) IF: 2.983
  • L. N. Patro* and K. Hariharan, Transport and photoluminescence studies of rare earth ions (Eu3+ and Nd3+) doped BaSnF4, Ionics, 19, 1611 (2013) IF: 2.961
  • L. N. Patro and K. Hariharan, Fast fluoride ion conducting fluoride materials in Solid State Ionics: an overview, Solid State Ionics, 239, 41 (2013) IF: 3.699
  • K. K. Bharathi, L. N. Patro and C. V. Ramana, Electronic behavior and impedance analysis of microcrystalline LiFePO4, Journal of Materials Science, 48, 5063 (2013) IF: 4.682
  • L. N. Patro* and K. Hariharan, Influence of dispersed alumina particles on the transport properties of mechanochemically synthesized NaSn2F5, Ionics, 19, 643 (2013) IF: 2.961
  • L. N. Patro and K. Hariharan, Ionic transport studies in Sn(1-x)KxF(2-x) type solid electrolytes, Materials Research Bulletin, 47, 2492 (2012) IF: 5.6
  • L. N. Patro* and K. Hariharan, Mechanical milling: an alternative approach for enhancing the conductivity of SnF2, Materials Letters, 80, 26 (2012) IF: 3.574
  • L. N. Patro and K. Hariharan, Influence of synthesis methodology on the ionic transport properties of BaSnF4, Materials Research Bulletin, 46, 732 (2011) IF: 5.6
  • L. N. Patro and K. Hariharan, Frequency dependent conduction characteristics of mechanochemically synthesized NaSn2F5, Materials Science and Engineering B, 162, 173 (2011) IF: 3.407
  • L. N. Patro and K. Hariharan, AC conductivity and scaling studies of polycrystalline SnF2, Materials Chemistry and Physics, 116, 81-87 (2009) IF: 4.778
Book Chapters
  • B. Roling, L. N. Patro and O. Burghaus, Nonlinear ionic conductivity of Solid electrolytes and supercooled Ionic Liquids, Nonlinear Dielectric Spectroscopy, Springer, Cham, 301-319 (2018).

Contact Details