A. S. B. Sombra

A. S. B. Sombra publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where A. S. B. Sombra sits on this spectrum.

A. S. B. Sombra D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where A. S. B. Sombra sits on this spectrum.

Overview

Best Publications

• Optical temperature sensing using upconversion fluorescence emission in Er3+/Yb3+-codoped chalcogenide glass

  P. V. dos Santos;M. T. de Araujo;A. S. Gouveia-Neto;J. A. Medeiros Neto

  314
  Citations

• On the physico-chemical and dielectric properties of glutaraldehyde crosslinked galactomannan–collagen films

  S.D Figueiró;Júlio C Góes;R.A Moreira;A.S.B Sombra

  255
  Citations

• Frequency upconversion in Er3+/Yb3+-codoped chalcogenide glass

  A. S. Oliveira;M. T. de Araujo;A. S. Gouveia-Neto;J. A. Medeiros Neto

  221
  Citations

• Impedance and modulus studies of magnetic ceramic oxide Ba2Co2Fe12O22 (Co2Y) doped with Bi2O3

  M. M. Costa;G. F. M. Pires;A. J. Terezo;M. P. F. Graça

  217
  Citations

• Design of a High-Efficiency and -Gain Antenna Using Novel Low-Loss, Temperature-Stable Li2Ti1–x(Cu1/3Nb2/3)xO3 Microwave Dielectric Ceramics

  Huan-Huan Guo;Mao-Sen Fu;Di Zhou;Chao Du

  210
  Citations

• Structural properties of hydroxyapatite obtained by mechanosynthesis

  C.C. Silva;A.G. Pinheiro;M.A.R. Miranda;J.C. Góes

  200
  Citations

• Lead-Free Relaxor Ferroelectric Ceramics with Ultrahigh Energy Storage Densities via Polymorphic Polar Nanoregions Design.

  Unknown

  199
  Citations

• Yttrium Iron Garnet: Properties and Applications Review

  E.J.J. Mallmann;A.S.B. Sombra;J.C. Goes;P.B.A. Fechine

  197
  Citations

• Investigation of AC-Measurements of Epoxy/Ferrite Composites.

  Moustafa A Darwish;Moustafa A Darwish;Alex V Trukhanov;Alex V Trukhanov;Oleg S Senatov;Alexander T Morchenko

  188
  Citations

• Upconversion fluorescence spectroscopy of Er3+/Yb3+-doped heavy metal Bi2O3–Na2O–Nb2O5–GeO2 glass

  A. S. Oliveira;M. T. de Araujo;A. S. Gouveia-Neto;A. S. B. Sombra

  176
  Citations

• Dielectric and impedance properties’ studies of the of lead doped (PbO)-Co2Y type hexaferrite (Ba2Co2Fe12O22 (Co2Y))

  M.M. Costa;M.M. Costa;G.F.M. Pires Júnior;A.S.B. Sombra

  160
  Citations

• Ultra-low temperature co-fired ceramics with adjustable microwave dielectric properties in Na2O-Bi2O3-MoO3 ternary system: A comprehensive study

  Unknown

  157
  Citations

• Influence of the dysprosium ions on structure, magnetic characteristics and origin of the reflection losses in the Ni–Co spinels

  A.V. Trukhanov;A.V. Trukhanov;K.A. Astapovich;V.A. Turchenko;V.A. Turchenko;M.A. Almessiere

  146
  Citations

• Study of structural features and thermal properties of barium hexaferrite upon indium doping

  Unknown

  140
  Citations

• DC conductivity and dielectric permittivity of collagen–chitosan films

  C.G.A. Lima;R.S. de Oliveira;S.D. Figueiró;C.F. Wehmann

  137
  Citations

• Thermally induced threefold upconversion emission enhancement in nonresonant excited Er3+/Yb3+-codoped chalcogenide glass

  P. V. dos Santos;E. A. Gouveia;M. T. de Araujo;A. S. Gouveia-Neto

  131
  Citations

• Magnetic and dielectric properties of the M-type barium strontium hexaferrite (BaxSr1−xFe12O19) in the RF and microwave (MW) frequency range

  F. M. M. Pereira;M. R. P. Santos;R. S. T. M. Sohn;J. S. Almeida

  127
  Citations

• Ni substitution effect on the structure, magnetization, resistivity and permeability of zinc ferrites

  D. A. Vinnik;V. E. Zhivulin;V. E. Zhivulin;D. P. Sherstyuk;A. Yu. Starikov

  125
  Citations

• Optical thermometry through infrared excited upconversion fluorescence emission in Er/sup 3+/- and Er/sup 3+/-Yb/sup 3+/-doped chalcogenide glasses

  P.V. Dos Santos;M.T. De Araujo;A.S. Gouveia-Neto;J.A.M. Neto

  123
  Citations

• Structural and dielectric spectroscopy studies of the M-type barium strontium hexaferrite alloys (Ba x Sr 1−x Fe 12 O 19 )

  F. M. M. Pereira;C. A. R. Junior;M. R. P. Santos;R. S. T. M. Sohn

  121
  Citations

• Structural properties of CaCu3Ti4O12 obtained by mechanical alloying

  A.F.L Almeida;R.S de Oliveira;J.C Góes;J.M Sasaki

  114
  Citations

• All optical logic gates based on an asymmetric nonlinear directional coupler

  W.B. Fraga;J.W.M. Menezes;M.G. da Silva;C.S. Sobrinho

  105
  Citations

• Electromagnetic properties of zinc–nickel ferrites in the frequency range of 0.05–10 GHz

  D.A. Vinnik;V.E. Zhivulin;V.E. Zhivulin;D.P. Sherstyuk;A.Y. Starikov

  94
  Citations