List of publications:
Science Citation Index (SCI): 728 as in 2017
h-index: 20
i10-index: 28

All of following research papers has been submitted to refereed journals.

  1. K. Tennakone, S.W.M.S. Wickramanayake, P. Samarasekara, C.A.N. Fernando, “Doping of Semiconductor Particles with Salts” Phys. Stat. Sol. (a)104, K57 (1987)

  2. H. Hegde, P. Samarasekara and F.J. Cadieu, “Nonepitaxial sputter synthesis of aligned strontium hexaferrites, SrO.6(Fe2O3), films” J. Appl. Phys., 75(10), 6640 (1994)

  3. A. Navarathna, P. Samarasekara, H. Hegde, R. Rani and F.J. Cadieu, “Nitriding studies of aligned high anisotropy ThMn12-type NdFe11Co1-yMoyN film samples” J. Appl. Phys. 76(10), 6068 (1994)

  4. H. Hegde, P. Samarasekara, R. Rani, A. Nanavarathna, K. Tracy, and F.J. Cadieu, “ Sputter synthesis of TbCu7 type Sm(CoFeCuZr) films with controlled easy axis orientation” J. Appl. Phys. 76(10), 6760 (1994)

  5. K. Tennakone, C.S. Lokuhetti and P. Samarasekara, “Ionic Conductivity of Prussian Blue Type Compounds Doped with Alkali Metal Chlorides”, Vidyodaya J. of Sci.5(1), SriLanka, 117 (1995)

  6. P. Samarasekara, R. Rani, F.J. Cadieu and S.A. Shaheen, “Variable texture NiOFe2O3 ferrite films prepared by pulsed laser deposition” J. Appl. Phys. 79(8), 5425 (1996)

  7. P. Samarasekara and F.J. Cadieu, “Polycrystalline Ni ferrite films deposited by RF sputtering techniques” Jpn. J. Appl. Phys. 40, 3176 (2001)

  8. P. Samarasekara and F.J. Cadieu, “Magnetic and Structural Properties of RF Sputtered Polycrystalline Lithium Mixed Ferrimagnetic Films” Chinese J. Phys. 39(6), 635 (2001). 

  9. P. Samarasekara, “Easy Axis Oriented Lithium Mixed Ferrite Films Deposited by the PLD Method” Chinese J. Phys. 40(6), 631 (2002). 

  10. P. Samarasekara, A.G.K. Nisantha and A.S. Disanayake, “High Photo-Voltage Zinc Oxide Thin Films Deposited by DC Sputtering” Chinese J. Phys. 40(2), 196 (2002). 

  11. P. Samarasekara, “ A Pulsed RF Sputtering Method for Obtaining Higher Deposition Rates” Chinese J. Phys. 41(1), 70 (2003). 

  12. P. Samarasekara, “Oxygen Partial Pressure Dependence of the Structure of RF Sputtered Strontium Ferrite” , Silver Jubilee celebration proceeding publication at University of Ruhuna-2003 Page 138-140

  13. P. Samarasekara, “Oxygen partial pressure dependence of the coercivity of Sputtered polycrystalline Nickel ferrite films” Journal of Science; University of Kelaniya 2, 73 (2005). 

  1. P. Samarasekara, M.A.K. Mallika Arachchi, A.S. Abeydeera, C.A.N. Fernando, A.S.Disanayake and R.M.G. Rajapakse, “Photocurrent enhancement of D.C. Sputtered copper oxide thin films”, Bull. Mater. Sci. 28(5), 483 (2005). 

  1. P. Samarasekara, N.T.R.N. Kumara and N.U.S. Yapa, “Sputtered Copper Oxide (CuO) thin films for Gas Sensor Devices”, J. Phys. Condens. Matter 18, 2417 (2006)

  2. P. Samarasekara, “A solution of the Heisenberg Hamiltonian for oriented thick ferromagnetic films” Chinese J. Phys. 44(5), 377 (2006). 

  3. P. Samarasekara, N.U.S. Yapa and N.T.R.N. Kumara, “Photo-voltaic and absorption properties of sputtered zinc oxide thin films” - Science Symposium 3 Proceedings publications, University of Ruhuna (2005) Page 53-57

  4. P. Samarasekara, “Variation of magnetic energy in oriented ultra-thin ferromagnetic Films” Ruhuna Journal of Science 1, 27 (2006). 

  1. P. Samarasekara, "Second order perturbation of Heisenberg Hamiltonian for non-oriented ultra-thin ferromagnetic films", Elec. J. Theo. Phys. 3(11), 71 (2006)

  1. P. Samarasekara and William A. Mendoza, “Effect of third order perturbation on Heisenberg Hamiltonian for non-oriented ultra-thin ferromagnetic films” Elec. J Theo. Phys. 7(24), 197-210 (2010). 

  2. P. Samarasekara and S.N.P. De Silva “Heisenberg Hamiltonian solution of thick ferromagnetic films with second order perturbation” Chinese J. Phys. 45(2-I), 142 (2007).

  3. P. Samarasekara, “Influence of third order perturbation on Heisenberg Hamiltonian of thick ferromagnetic films” Elec. J. Theo. Phys. 5(17), 231 (2008). 

  1. P. Samarasekara, N.U.S. Yapa, N.T.R.N. Kumara and M.V.K. Perera “ CO2 Gas Sensitivity of Sputtered Zinc Oxide Thin Films” Bull. Mater. Sci. 30(2), 113 (2007). 

  2. P. Samarasekara and N.U.S. Yapa “Effect of sputtering conditions on the gas sensitivity of Copper Oxide thin films” Sri Lankan Journal of Physics 8, 21 (2007). 

  3. P. Samarasekara “Classical Heisenberg Hamiltonian Solution of Oriented Spinel Ferrimagnetic Thin Films”, Elec. J. Theo. Phys. 4(15), 187 (2007). 

  1. P. Samarasekara, M.K. Abeyratne and S. Dehipawalage “Heisenberg Hamiltonian with Second Order Perturbation for Spinel Ferrite Thin Films” Elec. J. Theo. Phys. 6(20), 345, (2009). 

  2. P. Samarasekara “Determination of Energy of thick spinel ferrite films using Heisenberg Hamiltonian with second order perturbation” GESJ: Physics 1(3), 46 (2010) 

  3. P. Samarasekara and William A. Mendoza “Third Order Perturbed Heisenberg Hamiltonian of Spinel Ferrite Ultra-thin films” GESJ: Physics 1(5), 15 (2011).

  4. P. Samarasekara, “Investigation of Third Order Perturbed Heisenberg Hamiltonian of Thick Spinel Ferrite Films” Inventi Rapid: Algorithm Journal 2, 1 (2011).  

  5. P. Samarasekara, “Applied magnetic field and stress induced anisotropy dependence of energy for oriented ferromagnetic thick films” Journal of Science; University of Kelaniya 4, 01 (2008)  

  6.  P. Samarasekara, “Second and fourth order anisotropy dependence of the energy of oriented thick ferromagnetic films” Ceylon J. Science 13, 17 (2007)

  7. P. Samarasekara, “Contribution of stress induced anisotropyand applied magnetic fieldto the Heisenberg Hamiltonian of ultra-thin ferromagnetic films with second order perturbation”Inventi Rapid: modeling & simulation 1, 1 (2011)   

      Journal of science; University of Kelaniya 3, 73 (2007)
      science 2, 1 (2007).
     Kelaniya 6, 77-84 (2011).
42. Ahalapitiya H. Jayatissa, P. Samarasekara and Guo Kun “Methane gas sensor application of
      cuprous oxide synthesized by thermal oxidation” Physica Status Solidi(a) 206 (2), 332 (2009)
47. K. S. M. Kumara and P. Samarasekara, “Calculation and modeling the dark energy of the universe by the
      unification of dark energy and dark matter” –Peradeniya University research sessions (PURSE) 15(1), 443 (2010)
53K.P.T Silva and P. Samarasekara, "The study and comparison of the Generalized Chaplygin gas Model and the
       unification of dark energy and dark matter" PURSE proceedings at University of Peradeniya 17, 203 (2012).

58. P. Samarasekara and Prabhani Rajakaruna, “Orientation of easy axis of ferromagnetic films as explained by third order perturbed Heisenberg 

        Hamiltonian” Research & Reviews: Journal of Physics-STM journals 2(3), 5-9 (2013).

59. P. Samarasekara and C. K.D. Sirimanne, “Magnetic dipole interaction and total magnetic energy of Lithium ferrite thin films” GESJ: Physics 1(11), 3-12   


60. Amber LaGuerre, P. Samarasekara, Rasika Dahanayake and Sunil Dehipawala “The structural study of Spin

      Coated Thin Film Magnets” Bulletin of the American Physical Society (APS) March meetings, 59(1), 2014.

61. Prabhani Rajakaruna and P. Samarasekara, "An Explanation to Spin Reorientation of CoPt/AlN multilayers using

      Heisenberg Hamiltonian with Third-order Perturbation" iPURSE proceedings at University of Peradeniya 18, 407


62. P. Samarasekara, Rasika Dahanayake and S. Dehipawalage “Spin Coated Fe and Ni Mixed Oxide (FexNiyOz) Films and Their Structural Properties” GESJ:       Physics 2(12) 3-7(2014) .


63. C.K.D. Sirimanna and P. Samarasekara, “Determination of magnetic energy of

      Lithium ferrite using Heisenberg Hamiltonian” iPURSE proceedings at University of Peradeniya 18, 435 (2014).

64. P. Samarasekara and Udumbara Wijesinghe, “Optical properties of spin coated Cu doped ZnO nanocomposite Films” GESJ:Physics 2(14), 41-50 (2015). 

65. P. Samarasekara, Udumbara Wijesinghe and E.N. Jayaweera, "Impedance and electrical properties of Cu doped ZnO thin films" GESJ:Physics 1(13), 3-9


66. Katherine Vides, Rasika Dahanayake, Pubudu Samarasekara and Sunil Dehipawala,  “Micro Structure of Nickel in spin

        coated thin film magnets” Bulletin of the American Physical Society (APS) March meetings, 59(1), 2014.

67. Sunil Dehipawala, Pubudu Samarasekara and Rasika Dahanayake “ Structural Study of Iron Oxide Thin Films Using Pre-edge Feature of 

        XANES” Advanced materials research 1098, 58-62 (2015).

68. P. Samarasekara and N.G.K.V.M. Premasiri, "Structural properties of spin coated multilayered cupric oxide thin films” Research & Reviews: Journal of   

      Physics-STM journals 4(2), 8-13(2015). 

69. P. Samarasekara and N.G.K.V.M. Premasiri, "Optical properties of spin coated and sol-gel dip coated cupric oxide thin films” GESJ: Physics 1(15), 27-33       (2016).

 70. Sunil Dehipawala*, Rahel Steffen, Pubudu Samarasekara, Rasika Dahanayaka Characterization of Iron Nano Particles using Synchrotron X-rays” 

       Nanoscience, Multidisciplinary conference, NewYork, 2015. 

71. D.M.C.U. Dissanayake and P. Samarasekara,Characterization of sol-gel spin coated nanocrystalline cadmium sulphide thin films” iPURSE proceedings at 

       University of Peradeniya 19, 327 (2015). 

72. Sunil Dehipawalage, Pubudu Samarasekara, Rasika Dahanayake, George Tremberger Jr., Tak D. Cheung and Harry D. Gafney, “Characterization of   

        nano- sized iron particle layers spin coated on glass substrate” Physical chemistry of interfaces and nanomaterials XIV, Proceedings of SPIE Photonics   

        west 9549, 95490X-1-5 (2015).  

 73. D.M.C.U. Dissanayake and P. Samarasekara, “Optical and structural Properties of Spin Coated Cadmium Sulfide Thin Films” Journal of science: University

        of Kelaniya 10, 13-20 (2015).

 74. P. Samarasekara and P.A.S. Madushan, “Electrical properties of CdS thin films spin coated on conductive glass substrates” GESJ: Physics 2(16), 12-18 


75. P. Samarasekara and P.A.S. Madushan, “Synthesis of multilayered CdS thin films on amorphous glass substrates by spin coating” GESJ: Physics 1(15),           20-26 (2016).

76. N.U.S. Yapa and P. Samarasekara, "STUDY OF NON-ORIENTED ULTRA THIN FERROMAGNETIC FILMS" PGIS research congress in 2016.

77. P. Samarasekara and N.U.S. Yapa, “Third order perturbed Heisenberg Hamiltonian of bcc ferromagnetic ultra thin films” Research & Reviews: Journal of       Physics-STM journals 5(2), 23-30 (2016) .

78. P. Samarasekara and N.U.S. Yapa, “Third order perturbed energy of fcc ferromagnetic thin films as described by Heisenberg Hamiltonian” Ceylon Journal   

       of Science 45(2), 71-77 (2016). 

79. P. Samarasekara and N.U.S. Yapa, “Simple cubic ferromagnetic films with three layers as described by third order perturbed Hamiltonian" GESJ: 

       Physics2(16)3-11 (2016). .

80. Sunil Dehipawala, Pubudu Samarasekara, Rasika Dahanayake and Leung Edmund, "Micro-structure of iron in Petroselinum crispum and its dependence   

       with the chemical nature of the soil” APS March meeting 2016.

81. P. Samarasekara and B. I. Warnakulasooriya “Five layered fcc ferromagnetic films as described by modified second order perturbed Heisenberg   
         Hamiltonian”  Journal of science: University of Kelaniya 11, 11-21 (2016).  

82. P. Samarasekara and H. P. Weeramuni “Optical properties of Zn doped CuO films synthesized by spin coating” (to be published)

83. P. Samarasekara, B.M.M.B. Basnayaka and Sunil Dehipawala “Photocurrent enhancement of spin coated CdS thin films by adding Cu” (submitted to  


84. N.U.S. Yapa, P. Samarasekara and Sunil Dehipawala, “Variation of magnetic easy direction of bcc structured ferromagnetic films up to thirty   

      spin layers” Ceylon Journal of Science 46(3), 93-103 (2017).

85. P. Samarasekara and T.H.Y.I.K. De Silva, “Fcc and bcc structured ferromagnetic films with five to twenty spin layers explained by second order perturbed 

       Heisenberg Hamiltonian” Ceylon Journal of Science 46(1), 37-45 (2017).

86. P. Samarasekara and T.H.Y.I.K. De Silva,Ferromagnetic films with three to twenty spin layers as described using second order perturbed Heisenberg   

      Hamiltonian” GESJ:Physics 1(17), 3-12 (2017).

87. N.U.S. Yapa and P. Samarasekara, “Third order perturbed Heisenberg Hamiltonian of sc ferromagnetic films with fifty spin layers” (Submitted to 


88. N.U.S. Yapa, P. Samarasekara and E.M.P. Ekanayake, “Third order perturbed modified Heisenberg Hamiltonian of fcc structured ferromagnetic films with

       seventy spin layers” (to be published in GESJ: Physics).