Gayanath Fernando

Gayanath Fernando obtained his B.S. degree in mathematics (with first-class honors) from the University of Colombo, Sri Lanka, and his M.S. and Ph.D. degrees from Cornell University, Ithaca, NY, USA. He has worked on electronic structure problems in condensed matter for over 20 years. Recently, he has published a book on metallic multilayers, which focuses on the theory, experiments, and applications related to multilayered systems such as those used in the (Nobel prize winning) giant magnetoresistance effect-based, magnetic sensors. Early in his career, he won the Andrew Mellon Fellowship and more recently an SL presidential was awarded to him for research carried out in SL. He has been a Guest Scientist at Brookhaven National Laboratory in Upton, NY, since 1992. Dr. Fernando has worked on a wide variety of problems in theoretical condensed matter developing and applying accurate techniques to study electronic and magnetic structure, including the stability of crystal structures, elastic properties, cohesion, alloy phase diagrams, magnetism in transition metals and compounds, self-diffusion in liquid metals, spintronics, and (Hubbard) nanoclusters. At the University of Connecticut, Storrs, CT, USA, he has taught numerous undergraduate and graduate courses over the past 15 years, including elementary physics, mathematical methods, classical mechanics, statistical mechanics, solid state physics, electrodynamics, quantum mechanics, and many-body theory. In addition, he has supervised several Ph.D. and M.S. students and given popular (physics) lectures to high school students.

Biography Updated on 19 April 2008

Personal Home Page

http://www.phys.uconn.edu/people/faculty/storrs/fernando/

Articles in Scholarly Journals [Incomplete List]

  1. Discrete size series of CdSe quantum dots: a combined computational and experimental investigation
    Journal of Computer-Aided Materials Design, vol. 14, no. 1, pp. 167–174, 2007
  2. An exact study of pairing fluctuations and phase diagrams in four-site Hubbard Nanoclusters
    Journal of Computer-Aided Materials Design, vol. 14, no. 1, pp. 103–108, 2007
  3. Exact thermodynamics of pairing and charge–spin separation crossovers in small Hubbard nanoclusters
    Physics Letters A, vol. 364, no. 1, pp. 57–65, 2007
  4. Phase separation and electron pairing in repulsive Hubbard clusters
    Physical Review B, vol. 75, no. 8, 2007
  5. Thermodynamic properties, magnetism and Mott–Hubbard-like transitions in nanoscale clusters
    Journal of Magnetism and Magnetic Materials, vol. 300, no. 1, pp. e585–e590, 2006
  6. First principles study of CdSe quantum dots: Stability, surface unsaturations, and experimental validation
    Applied Physics Letters, vol. 88, no. 23, p. 231910, 2006
  7. Exact study of charge-spin separation, pairing fluctuations, and pseudogaps in four-site Hubbard clusters
    Physical Review B, vol. 74, no. 2, 2006
  8. Reduction of the three-dimensional Schrödinger equation for multilayered films
    Physical Review B, vol. 69, no. 20, 2004
  9. Study of novel nanostructured Pd–Mn oxides
    Physica B: Condensed Matter, vol. 344, no. 1-4, pp. 278–283, 2004
  10. Novel nanostructred Pd–Zr oxides
    Materials Science and Engineering A, vol. 366, no. 2, pp. 248–253, 2004
  11. Electronic structure and thermodynamics of defects in NiAl_{3}
    Physical Review B, vol. 64, no. 14, 2001
  12. Theoretical study of relativistic effects in the electronic structure of Pu
    Physical Review B, vol. 61, no. 19, pp. 12562–12565, 2000
  13. Magnetic moment of iron in metallic environments
    Physical Review B, vol. 61, no. 1, pp. 375–381, 2000
  14. Interatomic potentials via the effective-action formalism
    Physical Review B, vol. 58, no. 15, pp. 9700–9704, 1998
  15. Density-functional theory of one-electron propagators
    Physics Letters A, vol. 227, no. 3-4, pp. 265–270, 1997
  16. Stoner criterion of ferromagnetism and moment saturation in the Hubbard model with an applied magnetic field
    Physica B: Condensed Matter, vol. 230-232, pp. 509–512, 1997
  17. Path-integral analysis of the exchange-correlation energy and potential in density-functional theory: Unpolarized systems
    Physical Review B, vol. 54, no. 11, pp. 7765–7770, 1996
  18. Occupation numbers in density-functional calculations
    Physical Review B, vol. 52, no. 15, pp. 10697–10700, 1995
  19. Nitrogen diffusion and distribution in the Y_{2}Fe_{17} lattice
    Physical Review B, vol. 51, no. 18, pp. 12091–12099, 1995
  20. NMR study of Y2Fe17 nitrides
    Journal of Magnetism and Magnetic Materials, vol. 140-144, pp. 987–988, 1995
  21. Point Group Symmetries and Gaussian Integration
    Journal of Computational Physics, vol. 112, no. 2, pp. 282–290, 1994
  22. Alloy heats of formation: Theory versus experiment
    Journal of Phase Equilibria, vol. 15, no. 3, pp. 273–278, 1994
  23. Cu/Pd multilayers: An atomistic structural study
    Physical Review B, vol. 47, no. 20, pp. 13636–13642, 1993
  24. Surface electronic structure of ?-uranium
    Physical Review B, vol. 47, no. 11, pp. 6680–6684, 1993
  25. Spin and orbital contributions to surface magnetism in 3d elements
    Physical Review B, vol. 45, no. 6, pp. 2868–2875, 1992
  26. Heats of formation of transition-metal alloys: Full-potential approach and the Pt-Ti system
    Physical Review B, vol. 45, no. 15, pp. 8233–8238, 1992
  27. Possibility of a d-like surface for a-Pu: Theory
    Physical Review B, vol. 46, no. 20, pp. 13576–13583, 1992
  28. Anomalies in the elastic properties of metallic multilayers
    Physical Review Letters, vol. 66, no. 14, pp. 1882–1885, 1991
  29. Charge transfer in transition-metal alloying: Charge-tailing effects
    Physical Review B, vol. 43, no. 2, pp. 1446–1454, 1991
  30. Local-density approximation: Cohesion in the transition metals and s?d promotion in the transition-metal atoms
    Physical Review B, vol. 43, no. 2, pp. 1455–1462, 1991
  31. Enhanced orbital contribution to surface magnetism in Fe, Co, and Ni
    Solid State Communications, vol. 78, no. 9, pp. 801–806, 1991
  32. Electronic structure of the (111) and (100) surfaces of d-Pu
    Physical Review B, vol. 43, no. 12, pp. 9467–9474, 1991
  33. Charge transfer, charge tailing, cohesion and electron promotion in the transition metals.
    Physica B: Condensed Matter, vol. 172, no. 1-2, pp. 289–298, 1991
  34. Cohesion and promotion energies in the transition metals: Implications of the local-density approximation
    Journal of Applied Physics, vol. 69, no. 8, p. 5688, 1991
  35. Surface electronic structure of Ce in the a and ? phase
    Physical Review B, vol. 43, no. 4, pp. 3137–3142, 1991
  36. Electronic structure of hydrogen and oxygen chemisorbed on plutonium: Theoretical studies
    Physical Review B, vol. 43, no. 6, pp. 4590–4597, 1991
  37. Analytic embedded-atom potentials for fcc metals: Application to liquid and solid copper
    Physical Review B, vol. 43, no. 6, pp. 4653–4658, 1991
  38. Electronic structure of transition metal alloys and intermetallics: Charge transfer and its implications for Mössbauer effect measurements
    Hyperfine Interactions, vol. 53, no. 1-4, pp. 213–221, 1990
  39. Iterative approaches to electronic structure with augmented bases
    Physical Review B, vol. 41, no. 2, pp. 903–906, 1990
  40. Cohesion and lattice stabilities in the 5d transition metals: Full versus muffin-tin potentials
    Physical Review B, vol. 41, no. 17, pp. 11813–11821, 1990
  41. First-principles calculation of the activation energy for diffusion in liquid sodium
    Physical Review Letters, vol. 64, no. 10, pp. 1146–1149, 1990
  42. Full-potential linear augmented–Slater-type-orbital method
    Physical Review B, vol. 40, no. 5, pp. 2757–2766, 1989
  43. Antiferromagnetism of CuO_{2} layers
    Physical Review B, vol. 39, no. 1, pp. 835–838, 1989
  44. Adsorbed layer and multilayer materials: The energetics and bonding of Pd and Ag on Nb(001) and Nb(110)
    Physical Review B, vol. 39, no. 17, pp. 12585–12597, 1989
  45. Energetics of transition-metal alloy formation: Ti, Zr, and Hf alloyed with the heavier 4d and 5d elements
    Physical Review B, vol. 39, no. 15, pp. 10761–10769, 1989
  46. First-principles molecular dynamics for metals
    Physical Review B, vol. 40, no. 11, pp. 7985–7988, 1989
  47. Localized states at metal-metal interfaces: an inverse photomission study of pd/nb (110)
    Physical Review B, vol. 38, no. 11, pp. 7850–7853, 1988
  48. Structural stability of rhenium as a function of lattice compression: Theory
    Physical Review B, vol. 38, no. 11, pp. 7817–7819, 1988
  49. Theory of electronic structure and magnetic behavior of fcc iron grown on Cu(001)
    Physical Review B, vol. 38, no. 5, pp. 3016–3027, 1988
  50. The energetics of transition metal alloy formation: Theory versus experiment
    Scripta Metallurgica, vol. 22, no. 8, pp. 1285–1289, 1988
  51. Two magnetically different, closely lying states of fcc iron grown on copper (100)
    Physical Review Letters, vol. 59, no. 9, pp. 1041–1044, 1987
  52. Practical Method for Highly Accurate Large-Scale Surface Calculations
    Physical Review Letters, vol. 56, no. 21, pp. 2299–2302, 1986