Articles de revista: Enviaments recents

Ara es mostren els items 1-12 de 90

    • Concomitant light-reversible magnetic response in multiferroic oxide heterostructures for multiphysics applications 

      López Sánchez, Jesús; Del Campo Garcia, Angel Adolfo; Quesada, Adrián; Rivelles, Alejandro; Abuín, Manuel; Sainz, Raquel; Sebastiani-Tofano, Eugenia; Rubio Zuazo, Juan; Ochoa Guerrero, Diego A.; Fernández Lozano, José Francisco; García García, José Eduardo; Rubio Marcos, Fernando (2024-04-17)
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      Accés obert
      The concept of multiphysics, where materials respond to diverse external stimuli, such as magnetic fields, electric fields, light irradiation, stress, heat, and chemical reactions, plays a fundamental role in the development ...

    • Flash sintering of potassium-sodium niobate-based piezoceramics: refining (micro)structure for properties enhancement 

      López Blanco, Samuel; Rubio Marcos, Fernando; Barrón Portela, Andrea; Ochoa Guerrero, Diego A.; García García, José Eduardo (Elsevier, 2024-03)
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      Accés restringit per política de l'editorial
      Low-consumption ceramics processing routes are expected to replace conventional ones due to environmental concerns. In this context, flash sintering is garnering interest because it allows dense ceramics to be obtained in ...

    • Reversible optical control of magnetism in engineered artificial multiferroics 

      Ochoa Guerrero, Diego A.; Menéndez, Enric; López Sánchez, Jesús; Del Campo Garcia, Angel Adolfo; Ma, Zheng; Spasojevic, Irena; Fina, Ignasi; Fernández Lozano, José Francisco; Rubio Marcos, Fernando; Sort Viñas, Jordi; García García, José Eduardo (2024)
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      Accés obert
      Optical means instead of electric fields may offer a new pathway for low-power and wireless control of magnetism, holding great potential to design next-generation memory and spintronic devices. Artificial multiferroic ...

    • Insights into the early size effects of lead-free piezoelectric Ba0.85Ca0.15Zr0.1Ti0.9O3 

      Amorín, Harvey; Venet, Michel; García García, José Eduardo; Ochoa Guerrero, Diego A.; Ramos Sainz, Pablo; López Sánchez, Jesús; Rubio Zuazo, Juan; Castro Lozano, Alicia; Algueró Giménez, Miguel (John Wiley & sons, 2023-11-15)
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      Accés obert
      Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) stands out among lead-free ferroelectric oxides under consideration to replace state-of-the-art high-sensitivity piezoelectric Pb(Zr,Ti)O3, for a range of energy conversion ceramic technologies. ...

    • Particle size effect on the microstructure and the aging process of flash-sintered barium titanate from micro and nanopowders 

      López Blanco, Samuel; Vendrell Vilafruella, Xavier; Mestres Vila, Lourdes; Ochoa Guerrero, Diego A.; García García, José Eduardo (Royal Society of Chemistry (RSC), 2023-08-08)
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      Accés obert
      Flash sintering is a novel sintering technique that allows high-density ceramics to be obtained at low temperatures and using short dwell times, thus providing an energy-efficient alternative to conventional sintering. The ...

    • Fine-grained high-performance Ba0.85Ca0.15 Zr0.1Ti0.9O3 piezoceramics obtained by current-controlled flash sintering of nanopowders 

      López Blanco, Samuel; Ochoa Guerrero, Diego A.; Amorín, Harvey; Castro, Alicia; Algueró, Miguel; García García, José Eduardo (Elsevier, 2023-12)
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      Accés obert
      Due to environmental concerns, extensive research has been carried out to develop high-performance lead-free piezoceramics capable of replacing commercial lead-based materials. The lead-free (Ba0.7Ca0.3)TiO3 -Ba(Zr0.2Ti0.8)O3 ...

    • Features of the structural and dielectric properties in BaTi1-xSnxO3 ferroelectric ceramics 

      Flávio Dornelas, Ramon Guilherme; Silva, Atair C.; García García, José Eduardo; Guerra, José de los Santos (2023-07-27)
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      Accés restringit per política de l'editorial
      The demand to produce clean energy has been increasing over the last years due to the various climate changes, which are strongly afflicting the world. Therefore, it is necessary to implement new and alternative energy ...

    • In-depth analysis of smooth and nonsmooth bifurcations for an open-loop boost converter feeding constant power loads in discontinuous conduction mode 

      Benadero García-Morato, Luis; El Aroudi, Abdelali; Martínez-Salamero, Luis; Tse, Chi K (2023-03-30)
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      Accés obert
      This paper presents a study of the existence conditions of limit cycles and mechanisms when losing their stability in an open-loop DC–DC boost converter loaded with a constant power load and operating in discontinuous ...

    • Light-induced strain and its correlation with the optical absorption at charged domain walls in polycrystalline ferroelectrics 

      Rubio Marcos, Fernando; Pamies, Paula; Del Campo Garcia, Angel Adolfo; Tiana, Jordi; Ordóñez Pimentel, Jonathan; Venet, Michel; Rojas Hernández, Rocio E.; Ochoa Guerrero, Diego A.; Fernández Lozano, José Francisco; García García, José Eduardo (Elsevier, 2023-06)
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      Accés obert
      Photostrictive materials have a growing interest because of their great potential as light-driven actuators, among other optomechanical applications. In this context, the optical control of macroscopic strain in ferroelectrics ...

    • Visible-light-control of dielectric permittivity in ferroelectrics with charged domain walls 

      Ordóñez Pimentel, Jonathan; García García, José Eduardo; da Silva Jr, Paulo Sergio; Venet, Michel (American Physical Society (APS), 2023-03-29)
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      Accés restringit per política de l'editorial
      Optical control of functional properties in ferroic materials is now a highly appealing topic because it may entail different paradigms for future technologies. In ferroelectrics, in particular, controlling the properties ...

    • Bifurcation phenomena in open-loop DCM-operated DC–DC switching converters feeding constant power loads 

      El Aroudi, Abdelali; Benadero García-Morato, Luis; Harum, Reham; Martínez-Salamero, Luis; Tse, Chi K (2023-02-19)
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      Accés obert
      Constant power loading is an effect that appears in multiple-stage energy conversion systems with individually regulated switching power converters. In a two-stage system, an upstream or source converter drives one or more ...

    • Light-driven motion of charged domain walls in isolated ferroelectrics 

      Ordóñez Pimentel, Jonathan; Venet, Michel; Ochoa Guerrero, Diego A.; Rubio Marcos, Fernando; Fernández Lozano, José Francisco; García García, José Eduardo (American Physical Society (APS), 2022-12-26)
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      Accés obert
      Light-induced ferroelectric domain wall motion turns out to be a promising phenomenon to de- velop new photo-controlled devices. However, the physical origin of this ligh-matter coupling when material is irradiated with ...