A. S. B. Sombra

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