Exploració per tema "Ferroelectric domains"

Ara es mostren els items 1-6 de 6

    • A phase-field fracture model of ferroelectric materials under electro-mechanical loading 

      Abdollahi Hosnijeh, Amir; Arias Vicente, Irene (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A phase-field model is proposed for the coupled simulation of microstructure and fracture evolution in ferroelectric materials. The model is based on energetic phase-field approaches for brittle fracture and ferroelectric ...

    • Extrinsic coefficient characterisation of PZT ceramics near the morphotropic phase boundary 

      Albareda Tiana, Alfonso; Pérez Pérez, Rafael; García García, José Eduardo; Tiana Alsina, Jordi; Pérez Codina, Estel; Gorri Ochoa, José Antonio (2006-05)
      Article
      Accés obert
      El comportamiento extrínseco de las cerámicas PZT, relacionado con el movimiento de las paredes de los dominios, comporta efectos no lineales grandes. Esta correspondencia entre efectos extrínsecos y no linealidades puede ...

    • Frequency doubling in SBN crystal affected by poling and thermal treatment 

      Yao, Can (Universitat Politècnica de Catalunya, 2009-09-09)
      Projecte Final de Màster Oficial
      Accés obert
      The random anti-parallel micro-ferroelectric domains in SBN (Strontium-Barium Niobate, Sr0.61Ba0.39Nb2O3, ) crystal can be used for efficient nonlinear optical processes at different frequencies. The ferroelectric domains ...

    • Theoretical study of Cerenkov-type second-harmonic generation in periodically poled ferroelectric crystals 

      Sheng, Yan; Kong, Qian; Roppo, Vito; Kalinowski, K.; Wang, Qi; Cojocaru, Crina; Krolikowski, W. (2012-03)
      Article
      Accés obert
      We study theoretically the Čerenkov-type second-harmonic generation by a Gaussian beam in quadratic nonlinear media with periodically reverted ferroelectric domains. In particular, we consider the role of fundamental ...

    • Transverse cross-correlation scheme for pulse shape measurement in random nonlinear crystals 

      Cojocaru, Crina; Wang, Bingxia; Trull Silvestre, José Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We present a novel single-shot cross-correlation scheme based on the measurement of the transverse second harmonic generation (TSHG) in crystals with randomly distributed nonlinear ferroelectric domains. We implement it ...

    • 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)
      Article
      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 ...