J. Portelles

Instituto de Cibernética Matemática y Física — CU

Materials Science · Physical Sciences

18h-index1.2kcitations100works0.02yr avg
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Research Topics

Ferroelectric and Piezoelectric Materials(82), Microwave Dielectric Ceramics Synthesis(50), Multiferroics and related materials(32), Acoustic Wave Resonator Technologies(29), Dielectric properties of ceramics(14)

Publications100 total

Piezo-photoferroelectric response in bismuth-modified KNBNBiNO
MRS Advances·2026Open Access
Precursor influence on the raman spectrum of KNNLiTaLa0.01 prepared by two different methods
Revista Mexicana de Física·2024Open Access
Study of a polymorphic phase transition in KNNLiTaLa<sub>0.01</sub> by Raman spectroscopy
Phase Transitions·2022· 1 cited
The effect of temperature and bias on the energy storage of a Ru/YSZ/Ru thin-film device
Energy·2022· 9 cited
An analysis of the ferroelastic transition in Pb(Zr<sub>0.53</sub>Ti<sub>0.47</sub>)O<sub>3</sub>:Gd through the elastic stiffness constant
Phase Transitions·2021· 2 cited
Physical properties of the (K0·44Na0·52Li0.04)0.97La0·01Nb0·9Ta0·1O3 ceramic with coexisting tetragonal and orthorhombic monocrystalline grains at room temperature
Ceramics International·2021· 5 cited
Study of Dielectric Response and Energy Accumulation in Ru/YSZ/Ru Structures
SSRN Electronic Journal·2021Open Access
Design and Evaluation of Piezoelectric Sensors for the Measurement of Blood Flow in Coronary Implants by the Ultrasonic Transit Method
Revista cubana de física·2020Open Access
Dielectric Spectroscopy of the (K0.44Na0.52Li0.04)0.97La0.01Nb0.9Ta0.1O3 Ceramic Obtained by Sol-Gel
2020Open Access
Discrimination of a ferroelectric from a non-ferroelectric response in PFM by phase analyses at the harmonics of the applied Vac
Journal of Applied Physics·2020· 4 cited
Li, La, Ta doped KNN ceramics obtained by RTGG
Ferroelectrics·2018· 3 cited
Dielectric spectroscopic study of (K0.44Na0.52Li0.04)0.97 La0.01Nb0.9Ta0.13 ceramics
Journal of Applied Physics·2017· 3 cited
Optical properties of ferroelectric lanthanum lithium niobate
Ceramics International·2017· 12 cited
Relaxor ferroelectricity, ferromagnetic and optical second harmonic properties in lanthanum lithium niobate (La 0.05 Li 0.85 NbO 3 ) nanoparticles
Journal of Magnetism and Magnetic Materials·2017· 12 cited
Optical Second Harmonic and Multiferroic Properties in LiNbO$_{\mathrm{\mathbf{3}}}$\textbf{ and LiLaNbO}$_{\mathrm{\mathbf{3}}}$\textbf{ nanoparticles}.
Bulletin of the American Physical Society·2016
Improvement of the dielectric and ferroelectric properties of multiferroic Pb(Fe1/2Nb1/2)O3 ceramics processed in oxygen atmosphere
Journal of Materials Science·2016· 13 cited
Strong emissions of blue–yellow–red regions of La and Ti modified KNaNbO3 ferroelectric ceramics
Journal of Advanced Ceramics·2015· 8 citedOpen Access
Dielectric and piezoelectric properties of the KNN ceramic compound doped with Li, La and Ta
Applied Physics A·2014· 35 cited
Influence of the Sintering Conditions on the Microstructural, Dielectric and Piezoelectric Properties of La Doped KNNTa Ceramics
Revista cubana de física·2014Open Access
Multiferroic properties and magnetoelectric coupling in highly textured Pb(Fe0.5Nb0.5)O3 thin films obtained by RF sputtering
Acta Materialia·2014· 20 cited
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Frequent Co-authors

J. M. Siqueiros(25), O. Raymond(18), R. Font(15), A. Fundora(9), J. Heiras(8), F. Guerrero(8), J. Fuentes(7), J. M. Siqueiros(7), Harvey Amorín(7), Sheila Garcia(5), G. Álvarez(5), Reynaldo Font(4), Jean-Claude M’Peko(4), R. Zamorano(4), R. Valenzuela(4), J. Pérez(4), N. Suárez-Almodovar(3), M. D. Durruthy‐Rodríguez(3), M. P. Cruz(3), N. S. Almodóvar(3)