Browsing by Author "Saxena, Avadh"

Now showing items 1-10 of 10

    • Ginzburg-Landau modelling of precursor nanoscale textures in ferroelastic materials 

      Planes, Antoni; Lloveras Muntané, Pol Marcel; Castán, Teresa; Saxena, Avadh; Porta, Marcel (2012-11)
      Article
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      A Ginzburg–Landau free-energy model is proposed to study spatially inhomogeneous states that often occur as precursors of ferroelastic/martensitic transitions. Disorder is included in the harmonic coefficient of the ...

    • Glassy behavior in martensites: Interplay between elastic anisotropy and disorder in zero-field-cooling/field-cooling simulation experiments 

      Lloveras Muntané, Pol Marcel; Castán, Teresa; Porta, Marcel; Planes, Antoni; Saxena, Avadh (2009-08-17)
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      We study the combined effect of elastic anisotropy and disorder on the microstructure and thermodynamic behavior in alloys undergoing a martensitic transformation. Within a Ginzburg-Landau free-energy framework we find the ...

    • Influence of elastic anisotropy on structural nanoscale textures 

      Lloveras Muntané, Pol Marcel; Castán, Teresa; Porta, Marcel; Planes, Antoni; Saxena, Avadh (2008-04-25)
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      We study the influence of elastic anisotropy on nanoscale precursor textures that exist in some shapememory alloys and show that tweed occurs in the limit of high elastic anisotropy while a nanocluster phase-separated state ...

    • Intermittent dynamics in externally driven ferroelastics and strain glasses 

      Porta, Marcel; Castán Vidal, Teresa; Lloveras Muntané, Pol Marcel; Saxena, Avadh; Planes Vila, Antoni (American Institute of Physics (AIP), 2018-09-28)
      Article
      Open Access

    • Measurement of the 70Ge(n,¿) cross section up to 300 keV at the CERN n_TOF facility 

      Lederer-Woods, C.; Andrzejewski, Józef; Battino, U.; Gunsing, Frank; Krticka, M.; Massimi, Cristian; Mingrone, Federica; Aberle, O.; Audouin, Ludmila; Bacak, M.; Barbagallo, Massimo; Beinrucker, C.; Berthoumieux, Eric; Bosnar, Damir; Brugger, Matthias; Calviño Tavares, Francisco; Chen, Yu-Hsiang; Colonna, Nicola; Cortés Rossell, Guillem Pere; Cosentino, Luigi; Diakaki, M.; Domingo Pardo, César; Dressler, Rugard; Dupont, E.; Gonzalez Romero, E.; Goverdovski, A.; Griesmayer, E.; Jericha, E.; Kaeppeler, F.; Kadi, Y; Ketlerov, V.; Kimura, Atsushi; Leal-Cidoncha, E.; Leeb, H.; Lerendegui-Marco, J.; Losito, R.; Marganiec, J.; Mastromarco, M.; Musumarra, A.; Patronis, N.; Pavlik, A.; Rauscher, Thomas; Rubbia, C.; Sabaté-Gilarte, M.; Saxena, Avadh; Schmidt, Samuel; Stamatopoulos, A.; Tassan-Got, L.; Vannini, Gianni; Vlachoudis, V.; Wallner, A.; Wright, T.; Žugec, Petar (American Physical Society (APS), 2019-10-17)
      Article
      Open Access
      Neutron capture data on intermediate mass nuclei are of key importance to nucleosynthesis in the weakcomponent of the slow neutron capture processes, which occurs in massive stars. The (n,¿) cross section on70Ge, which is ...

    • Modelling magnetostructural textures in magnetic shape-memory alloys: Strain and magnetic glass behaviour 

      Lloveras Muntané, Pol Marcel; Touchagues, Gilles; Castán, Teresa; Lookman, Turab; Porta, Marcela; Saxena, Avadh; Planes Vila, Antoni (2014-10-01)
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      In this paper, we propose a model that combines a Landau free energy part and a micromagnetic free energy part aimed at describing a magnetostructural multiferroic. We show that in the limit of high-elastic anisotropy and ...

    • Modelling shape-memory effects in ferromagnetic alloys 

      Gebbia, Jonathan Fernando; Lloveras Muntané, Pol Marcel; Planes Vila, Antoni; Castán Vidal, Teresa; Saxena, Avadh (Springer, 2015-07-21)
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      We develop a combined Ginzburg–Landau/micromagnetic model dealing with conventional and magnetic shape-memory properties in ferromagnetic shape-memory materials. The free energy of the system is written as the sum of ...

    • Multiferroic and related hysteretic behavior in ferromagnetic shape memory alloys 

      Gebbia, Jonathan Fernando; Castán Vidal, Teresa; Lloveras Muntané, Pol Marcel; Porta Tena, Marcel; Saxena, Avadh; Planes Vila, Antoni (2017-08-29)
      Article
      Open Access
      We combine a Ginzburg–Landau model for a ferroelastic transition with the theory of micromagnetism to study the magnetostructural behavior leading to multicaloric effects in ferromagnetic shape memory alloys. We analyze ...

    • Spatially correlated disorder in self-organized precursor magnetic nanostructures 

      Porta, Marcel; Castán, Teresa; Lloveras Muntané, Pol Marcel; Planes, Antoni; Saxena, Avadh (2007-08-20)
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      We study the scaling behavior of the characteristic length of precursor magnetic nanostructures above the Curie temperature with the correlation length of quenched-in disorder. We found that the modulation length of the ...

    • Thermodynamics of stress-induced ferroelastic transitions: Influence of anisotropy and disorder 

      Lloveras Muntané, Pol Marcel; Castán, Teresa; Porta, Marcel; Planes, Antoni; Saxena, Avadh (2010-06-07)
      Article
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      Stress-induced stress-strain constitutive behavior has been studied in detail in ferroelastic martensites. It has been found that the weights of the long-range anisotropic interactions and of the disorder are important ...