Digital Repository

Browsing Physics by Author "Jayasuriya, K.D."

Browsing Physics by Author "Jayasuriya, K.D."

Sort by: Order: Results:

  • Plantain Pith Battery Powered Lighting System 
    Kumara, K.S.J.; Wijesundera, R.P.; Jayasuriya, K.D. (Institute of Physics, Sri Lanka, 2015)
  • Specific heat study of a holmium single crystal 
    Jayasuriya, K.D.; Campbell, S.J.; Stewart, A.M. (Journal of Physics F: Metal Physics, 1985)
    The magnetic transition at the Neel temperature, TN, of the heavy rare-earth metal holmium has been examined by specific heat measurements. The transition at TN=(132.245+or-0.080)K is found to be continuous and the data ...
  • Specific heat study of the transition from ferromagnetism to antiferromagnetism in terbium 
    Jayasuriya, K.D.; Campbell, S.J.; Stewart, A.M.; Gopal, E.S.R. (Journal of Magnetism and Magnetic Materials, 1984)
    The specificheat of single crystal terbium has been measured over the range 200?400 K. A value for the latent heat of (13.6 � 0.6) J mol?1 is obtained at the first order antiferromagnetic to ferromagnetic transition ...
  • Study of Sulphidation of Electrodeposited Cu2O Thin Films for Solar Cell Applications 
    Siripala, W.; Wijesundera, R.P.; Perera, L.D.R.D.; Jayasuriya, K.D. (1998)
    Cuprous oxide (Cu20 ) layers were potentiostatically electrodeposited on glass/ITO substrates and then they were partially sulphided using Na2S and H2S. Resulting layers were used to fabricate ITO/n-Cu20/p-CuxS thin film ...
  • Sulphidation of electrodeposited cuprous oxide thin films for photovoltaic applications 
    Wijesundera, R.P.; Perera, L.D.R.D.; Jayasuriya, K.D.; Siripala, W.; de Silva, K.T.L.; Samantilleke, A.P.; Dharmadasa, I.M. (Solar Energy Materials and Solar Cells, 2000)
    Electrodeposited cuprous oxide thin films on indium-doped tin oxide (ITO) substrates were sulphided by exposing them to a spray of aqueous solution of sodium sulphide or to a mixture of hydrogen sulphide and nitrogen gases. ...
  • Sulphurisation of sequentially electrodeposited Cu-In alloy for the preparation of semiconductor thin films 
    Wijesundera, R.P.; Siripala, W.; Jayasuriya, K.D.; Kalingamudali, S.R.D. (2000)
    Copper indium disulphide thin films were fabricated by suiphurisation of CuIn alloy prepared by a sequential electrodeposition method. Thin film layers of copper and indium were sequentially electrodeposited on a well-cleaned ...
  • Surfactant assisted ball-milling of barium ferrite 
    Jayasuriya, K.D.; Wu, E.; Kaczmarek, W.A.; Campbell, S.J. (IEEE Transactions on Magnetics, 1994)
    The effects of wet-milling barium ferrite in the presence of cationic or anionic surface active substances have been investigated by X-ray diffraction and Mossbauer spectroscopy measurements. Evidence for superparamagnetic ...
  • The critical specific heat of terbium 
    Jayasuriya, K.D.; Gopal, E.S.R.; Campbell, S.J.; Stewart, A.M. (Journal of Physics F: Metal Physics, 1983)
    Specific heat measurements have been carried out on a high-purity single crystal of terbium of mass 3.734 g between temperatures of 200 and 400K. The data around the Neel temperature TN, have been analysed in terms of the ...
  • The specific heat capacity of GE varnish (200-400K) 
    Jayasuriya, K.D.; Campbell, S.J.; Stewart, A.M. (Journal of Physics E: Scientific Instruments, 1982)
    The specific heat capacity of GE varnish, a commonly used adhesive and insulator, is found to vary linearly with temperature over the range 200-330K. The deviation of the heat capacity above this temperature is associated ...
  • The specific heat of samarium metal (80-400 K) 
    Jayasuriya, K.D.; Stewart, A.M.; Campbell, S.J. (Materials Chemistry and Physics, 1986)
    We have measured the specific heat of several high purity polycrystalline specimens of samarium metal over the temperature range 80 K to 400 K. A broad peak is observed at TNh ~106K, the temperature at which antiferromagnetic ...
  • XANES calibrations for the oxidation state of iron in a silicate glass 
    Jayasuriya, K.D.; Berry, A.J.; O?Neill, H.S.C.; Campbell, S.J.; Foran, G.J. (American Mineralogist, 2003)
    Fe K-edge X-ray absorption near edge structure (XANES) spectra were recorded for a series of anorthite-diopside eutectic glasses containing 1 wt% 57Fe2O3 quenched from melts equilibrated over a range of oxygen fugacities ...

Search Digital Repository


Advanced Search

Browse

My Account