Exploració per autor "Martínez García, Julio Cesar"
Ara es mostren els items 1-11 de 11
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Disentangling the secondary relaxations in the orientationally disordered mixed crystals: cycloheptanol + cyclooctanol two-component system
(2010-04-20)
Article
Accés restringit per política de l'editorialThe dynamics of the pure compounds and mixed crystals formed between cycloheptanol (cC7-ol) and cyclooctanol (cC8-ol) has been studied by means of broadband dielectric spectroscopy at temperatures near and above the ... -
Distortion-sensitive insight into the pretransitional behavior of 4-n-octyloxy-4 '-cyanobiphenyl (8OCB)
(Institute Of Physics Publishing Ltd, 2013-06)
Article
Accés restringit per política de l'editorialResults of studies of the static and dynamic dielectric properties in rod-like 4-n-octyloxy-40-cyanobiphenyl (8OCB) with isotropic (I)–nematic (N)–smectic A (SmA)–crystal (Cr) mesomorphism, combined with measurements of ... -
Dynamics of orientationally disordered mixed crystal sharing Cl-adamantane and CN-adamantane
(2010-01-27)
Article
Accés restringit per política de l'editorialOrientationally disordered (OD) mixed crystals formed between cyanoadamantane (CN-A) and chloroadamantane (Cl-A) have been thermodynamically characterized by means of thermal analysis and X-ray diffraction. The dynamics ... -
Evidence for a dynamics crossover and its implication on the freezing temperature determination of relaxor ferroelectrics
(Institute of Physics (IOP), 2019-09-27)
Article
Accés obertRelaxor ferroelectrics are characterized by a broadened and dispersive permittivity peak in their temperature-dependent dielectric spectra. Although several models have been proposed to explain the nature of these materials, ... -
Insight into the dynamics of low temperature dielectric relaxation of ordinary perovskite ferroelectrics
(2017-11-10)
Article
Accés obertThe temperature dependence of the dielectric response of ordinary ferroelectric materials exhibits a frequency-independent anomalous peak as a manifestation of the ferroelectric to paraelectric phase transition. A second ... -
Prevalence for the universal distribution of relaxation times near the glass transitions in experimental model systems: Rodlike liquid crystals and orientationally disordered crystals
(2011-04-13)
Article
Accés restringit per política de l'editorialRecently, Nielsen et al. [J. Chem. Phys. 130, 154508 (2009); Philos. Mag. 88, 4101 (2008)] demonstrated a universal pattern for the high frequency wing of the loss curve for primary relaxation time on approaching the ... -
Scaling the dynamics of orientationally disordered mixed crystals
(2009-11-14)
Article
Accés restringit per política de l'editorialThe evolution of the primary relaxation time of orientationally disordered (OD) mixed crystals [(CH3)2C(CH2OH)2]1−X[(CH3)C(CH2OH)3]X, with 0<X ≤ 0.5, on approaching the glass temperature (Tg) is discussed. The application ... -
The generalized Vogel-Fulcher-Tamman equation for describing the dynamics of relaxor ferroelectrics
(Nature, 2019-08-27)
Article
Accés obertRelaxor ferroelectrics (RF) are outstanding materials owing to their extraordinary dielectric, electromechanical, and electro-optical properties. Although their massive applications, they remain to be one of the most ... -
Unfolding kinetic fragility in relaxor ferroelectrics
(American Institute of Physics (AIP), 2021-10-07)
Article
Accés obertThe fragility parameter is one of the most important material constants that is extensively used in glass science, playing a central role in the enhancement of the understanding the glass formation process of disordered ... -
Universal critical-like scaling of dynamics in plastic crystals
(2011-01-15)
Article
Accés restringit per política de l'editorialMany theoretical models for the glassy dynamics have been proposed so far describing the changes in molecular dynamics along the extraordinary slowing down in the vitrification process of a disordered phase on cooling. ... -
α-relaxation dynamics of orientationally disordered mixed crystals composed of Cl-adamantane and CN-adamantane
(American Institute of Physics (AIP), 2010-04-29)
Article
Accés restringit per política de l'editorialThe α-relaxation dynamics of 1-cyano-adamantane (CNA) and its mixtures with 1-chloro-adamantane (ClA) has been studied by means of broadband dielectric spectroscopy. The existence of orientationally disordered (OD) face ...
