Now showing items 1-10 of 10

    • Core-softened fluids, water-like anomalies, and the liquid-liquid critical points 

      Torres, Evy Augusto Salcedo; Oliveira, Alan Barros de; Barraz Junior, Ney Marçal; Chakravarty, Charusita; Barbosa, Marcia Cristina Bernardes (2011) [Journal article]
      Molecular dynamics simulations are used to examine the relationship between water-like anomalies and the liquid-liquid critical point in a family of model fluids with multi-Gaussian, core-softened pair interactions. The ...
    • Effects of the attractive interactions in the thermodynamic, dynamic, and structural anomalies of a two length scale potential 

      Silva, Jonathas Nunes da; Torres, Evy Augusto Salcedo; Oliveira, Alan Barros de; Barbosa, Marcia Cristina Bernardes (2010) [Journal article]
      Using molecular dynamic simulations, we study a system of particles interacting through a continuous core-softened potentials consisting of a hard core, a shoulder at closest distances, and an attractive well at further ...
    • Entropy, diffusivity and the energy landscape of a waterlike fluid 

      Oliveira, Alan Barros de; Torres, Evy Augusto Salcedo; Chakravarty, Charusita; Barbosa, Marcia Cristina Bernardes (2010) [Journal article]
      Molecular dynamics simulations and instantaneous normal mode (INM) analysis of a fluid with core-softened pair interactions and waterlike liquid-state anomalies are performed to obtain an understanding of the relationship ...
    • Multiple liquid-liquid critical points and density anomaly in core-softened potentials 

      Barbosa, Marco Aurélio Alves; Torres, Evy Augusto Salcedo; Barbosa, Marcia Cristina Bernardes (2013) [Journal article]
      The relation between liquid-liquid phase transitions andwaterlike density anomalies in core-softened potentials of fluids was investigated in an exactly solvable one-dimensional lattice model and in a three-dimensional ...
    • Nanoscale sliding friction versus commensuration ratio : molecular dynamics simulations 

      Torres, Evy Augusto Salcedo; Goncalves, Sebastian; Scherer, Claudio; Kiwi, Miguel (2006) [Journal article]
      The pioneer work of Krim and Widom [Phys. Rev. B 38, 12184 (1988)] unveiled the origin of the viscous nature of friction at the atomic scale. This generated extensive experimental and theoretical activity. However, fundamental ...
    • Propagation of transverse domain walls in homogeneous magnetic nanowires 

      Allende Prieto, Sebastián; Altbir Drullinsky, Dora; Torres, Evy Augusto Salcedo; Bahiana, Monica Pereira; Sinnecker, João Paulo (2008) [Journal article]
      The field driven nucleation and propagation of transverse domain walls in a uniform Ni nanowire is examined by means of Monte Carlo simulations combined with a scaling technique. Simulations show a nonlinear behavior ...
    • Relation between boundary slip mechanisms and waterlike fluid behavior 

      Dallagnollo, Patricia Ternes; Torres, Evy Augusto Salcedo; Barbosa, Marcia Cristina Bernardes (2018) [Journal article]
      The slip of a fluid layer in contact with a solid confining surface is investigated for different temperatures and densities using molecular dynamic simulations. We show that for an anomalous waterlike fluid the slip goes ...
    • Relation between occupation in the first coordination shells and widom line in core-softened potentials 

      Torres, Evy Augusto Salcedo; Barraz Junior, Ney Marçal; Barbosa, Marcia Cristina Bernardes (2013) [Journal article]
      Three core-softened families of potentials are checked for the presence of density and diffusion anomalies. These potentials exhibit a repulsive core with a softening region and at larger distances an attractive well. We ...
    • Thermodynamic, dynamic, and structural anomalies for shoulderlike potentials 

      Barraz Junior, Ney Marçal; Torres, Evy Augusto Salcedo; Barbosa, Marcia Cristina Bernardes (2009) [Journal article]
      Using molecular dynamic simulations we study a family of continuous core-softened potentials consisting of a hard core, a shoulder at closest distances, and an attractive well at further distance. The repulsive shoulder ...
    • Thermodynamic, dynamic, structural, and excess entropy anomalies for core-softened potentials 

      Barraz Junior, Ney Marçal; Torres, Evy Augusto Salcedo; Barbosa, Marcia Cristina Bernardes (2011) [Journal article]
      Using molecular dynamic simulations, we study three families of continuous core-softened potentials consisting of two length scales: a shoulder scale and an attractive scale. All the families have the same slope between ...