Dr. (Mrs.) Nayomi U. Senarath Yapa

B.Sc special in physics (Second class upper division) University of Ruhuna, M.phil University of Ruhuna, Ph.D University of Peradeniya

Senior Lecturer - Grade I

Department of Physics

Condensed Matter physics

Material Science ,Condensed matter physics, Solid State Physics, Theoretical Condensed matter physics

Institute/Company

Division/Department

Post

From

To

University of Ruhuna, Matara, Sri Lanka.

 

 

 

 

The Open University of Sri Lanka.

Department Of physics

Department Of physics

Demonstrator

(Temporary)

 

Assistant Lecturer

(Temporary)

 

 

Lecturer (Temporary)

 

Lecturer (probationary)

1st of July 2005,

 

01st of January 2006

 

 15th of August 2009, 

 

  1st of June 2010, 

31st of December 

2005.

2007 September.

1st of June 2010

1st of June 2015

 

Faculty coordinator of Kandy regional centre

Modern physics (Level 4)
Statistical Physics (Level 6)

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, 2417-2420 (2006)

2.  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), 113-116 (2007)

3.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, 21-27 (2007)

4.P. Samarasekara, N.U.S. Yapa and N.T.R.N. Kumara, “Photo-voltaic and absorption  properties of sputtered zinc oxide thin films” – Science Symposium3 Proceedings   publications, University of Ruhuna (2005) Page 53-57

5. 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)

 

6.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).

7. P. Samarasekara and N.U.S. Yapa, “Simple cubic ferromagnetic films with three layers as described by third order perturbed Hamiltonian” GESJ:Physics 2(16),   3-11 (2016).

8NUS Yapa, P Samarasekara, S 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)

9.P Samarasekara, NUS Yapa ,”THIRD ORDER PERTURBED HEISENBERG HAMILTONIAN OF SC FERROMAGNETIC FILMS WITH FIFTY SPIN LAYERS”,GESJ: Physics 2 (18), pp. 64-72 (2017)

10.P Samarasekara, NUS Yapa, CAN Fernando ,”THIRD ORDER PERTURBED MODIFIED HEISENBERG HAMILTONIAN OF FCC STRUCTURED FERROMAGNETIC FILMS WITH SEVENTY SPIN LAYERS” ,GESJ: Physics 2018 | No.1(18)

11.Spin re-orientation of ferromagnetic thin films investigated using modified third order perturbed Hamiltonian.Under the supervision of Prof.P.samarasekara ,PGIS -Peradeniya

 

Abstracts

1.N.U.S. Yapa and P. Samarasekara, Study of non-oriented ultra-thin ferromagnetic thin films PGIS research congress in 2016.

Extended Abstracts

1.Spectroscopic and electrochemical properties of polyaniline films prepared by electrodeposition method

N.U.S. Yapa, P.Ekanayake and A. O. Olofinjana Energy Research group, Faculty of Science University Brunei Darussalam : conference Proceeding  on 21-23 November 2012, Brunei Darussalam

2.An overview of the design, processing and properties of solar controlling thin solid films N. U.S. Yapa, P.Ekanayake and A. O. Olofinjana Energy Research group, Faculty of Science University Brunei Darussalam : conference Proceeding  on 21-23 November 2012, Brunei Darussalam

1. Presidential awards for Scientific research (2006) :- P Samarasekara, N Kumara, NUS Yapa , “Sputtered copper oxide (CuO) thin films for gas sensor devices” ,Journal of Physics: Condensed Matter 18 (8), 2417