A. Sombra

On the piezoelectricity of anionic collagen films

J. A. C. Paiva, A. Sombra, J. C. Góes, 2002 .

Development of doped Ba–Sr hexagonal ferrites for microwave absorber applications: Structural characterization, tunable thickness, absorption peaks and electromagnetic parameters

Dalveer Kaur, A. Sombra, E. Ateia, 2021 .

Study of electrical properties with temperature variation by complex impedance spectroscopy (CIS) and effects on the Ba2TiSi2O8–TiO2 matrix

F. F. do Carmo, J. D. do Nascimento, R. F. Abreu, 2024, Applied Physics A.

Radio-frequency (RF) studies of the magneto-dielectric composites: Cr0.75Fe1.25O3 (CRFO)-Fe0.5Cu0.75Ti0.75O3 (FCTO)

M.R.P. Santos, H. Rocha, A. Sombra, 2008 .

Dielectric Resonator Antennas with Frequency Stability Under Severe Temperature Variations Based on Li2MgTi3O8 Ceramic Matrix Added with Bi2O3

M. A. Silva, J. C. Góes, R. Oliveira, 2018, Journal of Electronic Materials.

Experimental and numerical investigation of a ceramic dielectric resonator (DRA): CaCu3Ti4O12 (CCTO)

Manuel Almeida Valente, A. S. B. Sombra, M. Valente, 2008 .