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EUSL Staff Research Collection: Recent submissions

  • Electronic correlation effects in LnFe2Al10 (Ln = Y, Yb) 
    Strydom, A. M.; Peratheepan, P.; Sarkar, R.; Baenitz, M.; Steglich, F. (Journal of the Physical Society of Japan, 2011)
    We report on physical properties of the two new iron aluminides YFe2Al10 and YbFe2Al10. They are members of a broader rare-earth based family of intermetallics in which unusual properties have been the subject of considerable ...
  • Fluctuations and the ferromagnetic instability in YFe2Al10: the role of Fe stoichiometry 
    Strydom, A. M.; Khuntia, P.; Baenitz, M.; Peratheepan, P.; Steglich, F. (Physica Status, 2013)
    YFe2Al10 forms in a well-ordered crystal structure, with a unique site for the magnetic atom Fe. At elevated temperatures YFe2Al10 behaves electronically as a good metal. At low temperatures on the other hand, signatures ...
  • Competing 4f-electron dynamics in Ce(Ru1-xFex) 2Al10 (0≤x≤1.0): Magnetic ordering emerging from the Kondo semiconducting state 
    Adroja, D. T.; Hillier, A. D.; Muro, Y.; Kajino, J.; Takabatake, T.; Peratheepan, P.; Strydom, A. M.; Deen, P. P.; Demmel, F.; Stewart, J. R.; Taylor, J. W.; Smith, R. I.; Ramos, S.; Adams, M.A. (Physical Review, 2013)
    We have carried out muon spin relaxation (muSR), neutron diffraction and inelastic neutron scattering (INS) investigations on polycrystalline samples of Ce(Ru1-xFex)2Al10 (x=0, 0.3, 0.5, 0.8 and 1) to investigate the nature ...
  • Contiguous 3d and 4f Magnetism: strongly correlated 3d electrons in YbFe2Al10 
    Khuntia, P.; Peratheepan, P.; Strydom, A. M.; Utsumi, Y.; Tsuei, K. D.; Tjeng, L. H.; Steglich, F.; Baenitz, M. (Physical Review, 2014)
    We present magnetization, specific heat, and 27 Al NMR investigations on YbFe 2 Al 10 over a wide range in temperature and magnetic field. The magnetic susceptibility at low temperatures is strongly enhanced ...
  • Electronic, magnetic, and transport properties of the isotypic aluminides SmT2Al10 (T = Fe, Ru) 
    Peratheepan, P.; Strydom, A. M. (Journal of Physics, 2015)
    We report the results of a comprehensive physical and magnetic property study of the new isotypic aluminides SmT2Al10 (T = Fe, Ru). These two compounds are members of a rare-earth based system which has become an exemplary ...
  • Contrasting effect of La substitution on the magnetic moment direction in the Kondo semiconductors Ce T 2 Al 10 ( T = Ru , Os ) 
    Adroja, D. T.; Hillier, A. D.; Ritter, C; Bhattacharyya, A.; Khalyavin, D. D.; Strydom, A. M.; Peratheepan, P.; Fak, B.; Koza, M. M.; Kawabata, J.; Yamada, Y.; Okada, Y.; Muro, Y.; Takabatake, T.; Taylor, J. W. (PHYSICAL REVIEW, 2015)
    The opening of a spin gap in the orthorhombic compounds Ce T 2 Al 10 ( T = Ru and Os ) is followed by antiferromagnetic ordering at T N = 27 and 28.5 K, respectively, with a small ordered moment ...
  • Evidence for strong f-d hybridisation in intermetallic ferromagnet CePdIn2 
    Carleschi, E.; Doyle, B. P.; Snyman, J. L.; Magnano, E.; Nappini, S; Pis, I.; Bondino, F.; Peratheepan, P.; Strydom, A. M. (Physical Review, 2015)
    We have investigated the contribution of Ce 4 f states to the electronic structure of the intermetallic ferromagnet CePdIn 2 by means of x-ray absorption spectroscopy and resonant and nonresonant photoemission ...
  • Preparation, Characterisation and Mechanical Properties of Montmorillonite Polyanyline Nanocomposites 
    Soundararajah, Q. Y.; Karunaratne, B. S. B.; Rajapakse, R. M. G. (University of Peradeniya, 2006)
    The montmorillonite (MMT) clay was intercalated with polyaniline (PANI) to prepare montmorillonite - polyaniline nanocomposites (MMT-PANI). The MMT clay was ion exchanged with H+ and dried at 120°C for 2 hours. The H+ ...
  • Montmorillonite polyaniline nanocomposites: Preparation, characterization and investigation of mechanical properties 
    Soundararajah, Q. Y.; Karunaratne, B. S. B.; Rajapakse, R. M. G. (Mater. Chem. Phys, 2009)
    The interest in clay polymer nanocomposites (CPN) materials, initially developed by researchers at Toyota, has grown dramatically over the last decade. They have attracted great interest, both in industry and in academia, ...
  • Mechanical Properties of Poly(vinyl alcohol) Montmorillonite Nanocomposites. 
    Soundararajah, Q. Y.; Karunaratne, B. S. B.; Rajapakse, R. M. G. (J. Compos. Mater., 2010)
    The properties of polymers are greatly enhanced when they are incorporated with silicate-layered clays as they find many applications in the fields of electronics, automobile industry, packaging, and construction. In this ...
  • Microstructure of InxGa1-xN nanorods grown by molecular beam epitaxy 
    Soundararajah, Q. Y.; Webster, R. F. (Semicond. Sci. Technol, 2015)
    Transmission electron microscopy is used to examine the structure and composition of InxGa1−xN nanorods grown by plasma-assisted molecular beam epitaxy. The results confirm a core–shell structure with an In-rich core and ...
  • Generating potentials via difference equations, 
    Maharaj, S. D.; Thirukkanesh, S (Mathematical Methods in the Applied Sciences, 2006)
    The condition for pressure isotropy, for spherically symmetric gravitational fields with charged and uncharged matter, is reduced to a recurrence equation with variable, rational coefficients. This difference equation is ...
  • Exact models for isotropic matter 
    Thirukkanesh, S; Maharaj, S. D. (Classical and Quantum Gravity, 2006)
    We study the Einstein-Maxwell system of equations in spherically symmetric gravitational fields for static interior spacetimes. The condition for pressure isotropy is reduced to a recurrence equation with variable, ...
  • Charged anisotropic matter with a linear equation of state, Classical and Quantum Gravity 
    Thirukkanesh, S; Maharaj, S. D. (Classical and Quantum Gravity, 2008)
    We consider the general situation of a compact relativistic body with anisotropic pressures in the presence of the electromagnetic field. The equation of state for the matter distribution is linear and may be applied to ...
  • Generalized isothermal models with strange equation of state 
    Thirukkanesh, S; Maharaj, S. D. (PRAMANA- journal of Physics, 2008)
    We consider the linear equation of state for matter distributions that may be applied to strange stars with quark matter. In our general approach the compact relativistic body allows for anisotropic pressures in the ...
  • Some new static charged spheres 
    Maharaj, S. D.; Thirukkanesh, S. (Nonlinear Analysis- Real World Applications, 2009)
    We present new exact solutions for the Einstein-Maxwell system in static spherically symmetric interior spacetimes. For a particular form of the gravitational potentials and the electric field intensity, it is possible ...
  • Radiating relativistic matter in geodesic motion 
    Thirukkanesh, S.; Maharaj, S. D. (Journal of Mathematical Physics, 2009)
    We study the gravitational behaviour of a spherically symmetric radiating star when the fluid particles are in geodesic motion. We transform the governing equation into a simpler form which allows for a general analytic ...
  • Charged relativistic spheres with generalized potentials 
    Thirukkanesh, S.; Maharaj, S. D. (Mathematical Methods in the Applied Sciences, 2009)
    A new class of exact solutions of the Einstein-Maxwell system is found in closed form. This is achieved by choosing a generalised form for one of the gravitational potentials and a particular form for the electric field ...
  • Dissipative collapse in the presence of Λ 
    Govender, M; Thirukkanesh, S. (International Journal of Theoretical Physics, 2009)
    We present the general junction conditions for the smooth matching of a spherically symmetric, shear-free spacetime to Vaidya’s outgoing metric across a four-dimensional time-like hypersurface in the presence of a cosmological ...
  • The final outcome of dissipative collapse in the presence of Λ, PRAMANA 
    Thirukkanesh, S.; Moopanar, S.; Govender, M (journal of Physics, 2012)
    We investigate the role played by the cosmological constant during gravitational collapse of a radiating star with vanishing Weyl stresses in the interior. We highlight the role played by the cosmological constant during ...

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