All Stories

  1. Reciprocal exchange bias and exchange spring effects in the Heisenberg antiferromagnet RbMnF3

    Article • Physical Review B, September 2025, American Physical Society (APS)

    Professor Fernando Machado

  2. Controlling Magnetic-Field-Induced Shape Memory Response in Polycrystalline Off-Stoichiometry Fe47-xMn24+xGa29 Microwires

    Article • ACS Materials Au, August 2025, American Chemical Society (ACS)

    Professor Fernando Machado

  3. Giant magneto-impedance effect in CoP/Cu bilayers meander-like sensing elements

    Article • Journal of Applied Physics, July 2025, American Institute of Physics

    Professor Fernando Machado

  4. Giant Nuclear-Electronic Spin Pumping in the Heisenberg Antiferromagnet RbMnF3...

    Article • Physical Review Letters, April 2025, American Physical Society (APS)

    Professor Fernando Machado

  5. Controlling magnetically induced shape memory behavior through volume proportions in Heusler-type Fe47-Mn24+Ga29 structures

    Article • Journal of Alloys and Compounds, June 2024, Elsevier

    Professor Fernando Machado

  6. Giant magneto-impedance effect in amorphous CoP@Cu microstrip based device in a wide frequency range

    Article • Journal of Magnetism and Magnetic Materials, June 2024, Elsevier

    Professor Fernando Machado

  7. Enhanced spin current transmissivity in Pt/ CoFe2O4

    Article • December 2023, American Physical Society (APS)

    Professor Fernando Machado

  8. Magnetic properties of exchanged-coupled nanostructured core–shell particles of CoO@MnFe2

    Article • Journal of Magnetism and Magnetic Materials, December 2023, Elsevier

    Professor Fernando Machado

  9. Enhanced spin Seebeck effect in the paramagnetic phase of the three-dimensional Heisenberg antiferromagnet RbMnF

    Article • April 2023, American Physical Society (APS)

    Professor Fernando Machado

  10. Giant magnetoresistance in the crystalline YCd6 intermetallic compound

    Article • April 2023, American Physical Society (APS)

    Professor Fernando Machado

  11. Investigation of the GMI effect in multilayered sensing elements deposited over silicon and glass substrates

    Article • Journal of Magnetism and Magnetic Materials, October 2022, Elsevier

    Professor Fernando Machado

  12. Experimental evidence of exchange forces between nanoparticles in a superparamagnetic system

    Article • Journal of Physics D Applied Physics, June 2022, Institute of Physics Publishing

    Professor Fernando Machado

  13. Magneto-Impedance measurements in thin films of the Spin-Glass Cu100-Mn Au13.5 (x = 6.75 and 13.5) alloys

    Article • Journal of Magnetism and Magnetic Materials, January 2022, Elsevier

    Professor Fernando Machado

  14. Enhancing the electrical properties of NBT ceramics by the addition of small amounts of Yb

    Article • Journal of Alloys and Compounds, August 2021, Elsevier

    Professor Fernando Machado

  15. Correlation of the magnetic properties with the structural parameters

    Article • AIP Advances, March 2021, American Institute of Physics

    Professor Fernando Machado

  16. Low temperature magnetic properties of the quasicrystalline Al80Mn12Si4X4 (X = Cr, Y, Sm and Nd) alloys

    Article • Journal of Non-Crystalline Solids, November 2020, Elsevier

    Professor Fernando Machado

  17. Study of the low-field irreversibility line in the transverse component spin-glass phase of the amorphous Fe90Zr10 alloy

    Article • Zeitschrift für Physik B Condensed Matter and Quanta, August 2020, Springer Science + Business Media

    Professor Fernando Machado

  18. Thermal transport in yttrium iron garnet at very high magnetic fields

    Article • May 2020, American Physical Society (APS)

    Professor Fernando Machado

  19. Magnetic properties of the double perovskites Sm2Mn1+x Co1−x O6 (x  =  0, 0.05, 0.12 and 0.26)

    Article • Journal of Physics Condensed Matter, December 2019, Institute of Physics Publishing

    Professor Fernando Machado

  20. Magnetization oscillations in polyaniline-γFe2O3 nanocomposites

    Article • Journal of Magnetism and Magnetic Materials, October 2019, Elsevier

    Professor Fernando Machado

  21. Half-wave rectification of ac-magnetic-field effects by mixing thermal spin and charge currents in a NiO/Pt nanostructure

    Article • Applied Physics Letters, August 2019, American Institute of Physics

    Pablo Ribeiro, Matheus Gamino, Professor Fernando Machado

  22. Physical origins of the magnetoresistance of platinum in contact with polycrystalline antiferromagnetic NiO

    Article • Journal of Magnetism and Magnetic Materials, April 2019, Elsevier

    Professor Fernando Machado

  23. Spin Seebeck effect in antiferromagnet nickel oxide in wide ranges of temperature and magnetic field

    Article • March 2019, American Physical Society (APS)

    Professor Fernando Machado

  24. Structural description, luminescent and magnetic properties of novel 2-D coordination polymers containing thiazolo[5,4-d]thiazole rings and trivalent lanthanide ions

    Article • Journal of Solid State Chemistry, December 2018, Elsevier

    Professor Fernando Machado

  25. The role of metallic nanoparticles in the enhancement of the spin Hall magnetoresistance in YIG/Pt thin films

    Article • Journal of Magnetism and Magnetic Materials, November 2018, Elsevier

    Professor Fernando Machado

  26. Local iron ion distribution and magnetic properties of the perovskites La1

    Article • Journal of Magnetism and Magnetic Materials, November 2018, Elsevier

    Professor Fernando Machado

  27. On the magnetic properties of the multiferroic ceramics Bi0.99

    Article • Journal of Magnetism and Magnetic Materials, April 2018, Elsevier

    Professor Fernando Machado

  28. Magnetic irreversibility and spin dynamics in nanoparticles of iron-doped europium chromite

    Article • Journal of Alloys and Compounds, November 2017, Elsevier

    Professor Fernando Machado

  29. Metal-organic framework: Structure and magnetic properties of [Cu3(BTC)2 (L)x·(CuO)y]n (L=H2O, DMF)

    Article • Journal of Solid State Chemistry, September 2017, Elsevier

    Professor Fernando Machado

  30. Giant magnetoimpedance effect in a thin-film multilayer meander-like sensor

    Article • Journal of Applied Physics, March 2017, American Institute of Physics

    Professor Fernando Machado

  31. Spin-flop transition in the easy-plane antiferromagnet nickel oxide

    Article • March 2017, American Physical Society (APS)

    Professor Fernando Machado

  32. Magnetic properties of Co-doped ZnO nanoparticles

    Article • Journal of Magnetism and Magnetic Materials, March 2017, Elsevier

    Professor Fernando Machado

  33. Magnetic properties of the nanocomposite CoFe2O4/FeCo-FeO at a high H/T regime

    Article • Journal of Magnetism and Magnetic Materials, February 2017, Elsevier

    Professor Fernando Machado

  34. Synthesis of europium orthochromites (EuCrO3) nanoparticles by a combustion reaction method

    Article • Journal of Alloys and Compounds, January 2017, Elsevier

    Professor Fernando Machado

  35. Demagnetizing Field Induced Instability in a Superferromagnetic (CoFe2O4)20 Ag80 Nanocomposite

    Article • IEEE Magnetics Letters, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Fernando Machado

  36. Giant Zeeman shifts in the optical transitions of yttrium iron garnet thin films

    Article • Applied Physics Letters, September 2016, American Institute of Physics

    Professor Fernando Machado

  37. GMI in the reentrant spin-glass Fe90Zr10 alloy: Investigation of the spin dynamics in the MHz frequency regime

    Article • Applied Physics Letters, September 2016, American Institute of Physics

    Professor Fernando Machado

  38. Enhanced remanence in nanocomposite of Y1-xSmxCo5/Co ribbons obtained by melt-spinning

    Article • MRS Proceedings, January 2016, Cambridge University Press

    Professor Fernando Machado

  39. Magnetic properties of polymer matrix composites with embedded ferrite particles

    Article • NDT & E International, January 2016, Elsevier

    Professor Fernando Machado

  40. Spin-Current to Charge-Current Conversion and Magnetoresistance in a Hybrid Structure of Graphene and Yttrium Iron Garnet

    Article • Physical Review Letters, November 2015, American Physical Society (APS)

    Professor Fernando Machado

  41. Spin-wave stiffness parameter in ferrimagnetic systems: Nanoparticulate powders of (Mg,Zn)Fe2O4 mixed ferrites

    Article • Journal of Applied Physics, November 2015, American Institute of Physics

    Professor Fernando Machado

  42. Sustained magnetization oscillations in polyaniline-Fe3O4 nanocomposites

    Article • The Journal of Chemical Physics, September 2015, American Institute of Physics

    Professor Fernando Machado

  43. On the dynamics of the reentrant spin-glass state of the Fe100−xZrx (x = 9, 10) amorphous alloys

    Article • Journal of Applied Physics, May 2015, American Institute of Physics

    Professor Fernando Machado

  44. Magnetic couplings in CoFe2O4/FeCo–FeO core–shell nanoparticles

    Article • Journal of Magnetism and Magnetic Materials, January 2015, Elsevier

    Professor Fernando Machado

  45. Magnetic anisotropy of antiferromagneticRbMnF3

    Article • Physical Review B, August 2014, American Physical Society (APS)

    Professor Fernando Machado

  46. Large inverse spin Hall effect in the antiferromagnetic metalIr20

    Article • Physical Review B, April 2014, American Physical Society (APS)

    Professor Fernando Machado

  47. Origin of spin-glass and exchange bias in La1∕3Sr2∕3FeO3−γ nanoparticles

    Article • Journal of Applied Physics, March 2014, American Institute of Physics

    Professor Fernando Machado

  48. Magnon spin-current theory for the longitudinal spin-Seebeck effect

    Article • Physical Review B, January 2014, American Physical Society (APS)

    Professor Fernando Machado

  49. Exchange-bias and exchange-spring coupling in magnetic core–shell nanoparticles

    Article • Journal of Magnetism and Magnetic Materials, January 2014, Elsevier

    Professor Fernando Machado

  50. Magnetic Dimensionality of Metal Formate $M[(H_2O)_2 (HCOO)_2]$ Compounds ($M={}$Co(II), Cu(II))

    Article • IEEE Transactions on Magnetics, December 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Fernando Machado

  51. Mössbauer and magnetic study of nanocrystalline strontium hexaferrite prepared by an ionic coordination reaction technique

    Article • Journal of Magnetism and Magnetic Materials, October 2013, Elsevier

    Professor Fernando Machado

  52. Enhanced Magnetic Properties of Zn Substituted Mg Ferrite

    Article • IEEE Transactions on Magnetics, August 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Fernando Machado

  53. Dication magnetic ionic liquids with tuneable heteroanions

    Article • Chemical Communications, January 2013, Royal Society of Chemistry

    Professor Fernando Machado

  54. Critical dimension for magnetic exchange-spring coupled core/shell CoFe2

    Article • Journal of Magnetism and Magnetic Materials, January 2013, Elsevier

    Professor Fernando Machado

  55. Ac magnetic susceptibility measurements in nanoparticulate powders of iron-doped ZnO

    Article • Journal of Magnetism and Magnetic Materials, March 2012, Elsevier

    Professor Fernando Machado

  56. Synthesis, crystal structure, magnetism and specific heat of a new copper(II) compound with p-aminobenzoic acid

    Article • Inorganica Chimica Acta, November 2011, Elsevier

    Professor Fernando Machado

  57. Addition of magnetic markers for non-destructive evaluation of polymer composites

    Article • Materials Research, October 2011, FapUNIFESP (SciELO)

    Professor Fernando Machado

  58. Magnetic properties of nanoparticles of cobalt ferrite at high magnetic field

    Article • Journal of Applied Physics, September 2011, American Institute of Physics

    Professor Fernando Machado

  59. On the influence of the milling time in the Curie temperature of Fe56Co7Ni7Zr10B20 investigated by magnetic thermogravimetric analysis

    Article • Journal of Thermal Analysis and Calorimetry, July 2011, Springer Science + Business Media

    Professor Fernando Machado

  60. Enhanced magnetic properties of Bi-substituted cobalt ferrites

    Article • Journal of Applied Physics, April 2011, American Institute of Physics

    Professor Fernando Machado

  61. High sensitivity giant magnetoimpedance (GMI) magnetic transducer: magnitude versus phase sensing

    Article • Measurement Science and Technology, February 2011, Institute of Physics Publishing

    Professor Fernando Machado

  62. Exchange-spring behavior in nanopowders of CoFe2O4–CoFe2

    Article • Applied Physics Letters, February 2011, American Institute of Physics

    Professor Fernando Machado

  63. Sensitivity improvement of GMI magnetic and pressure transducers for biomedical measurements

    Article • Revista Brasileira de Engenharia Biomédica, January 2011, Editora Cubo Multimidia

    Professor Fernando Machado

  64. Effects of Ru doping on the transport and magnetic properties of a La1.32Sr1.68Mn2 −yRuyO7layered manganite system

    Article • Journal of Physics Condensed Matter, May 2010, Institute of Physics Publishing

    Professor Fernando Machado, M Kumaresavanji

  65. Specific heat measurements in pure and in (Cu, Mn, Fe, Ni)-doped single-crystals of l-arginine phosphate monohydrate

    Article • Journal of Physics and Chemistry of Solids, May 2010, Elsevier

    Professor Fernando Machado

  66. Synthesis, characterization and magnetic properties of polyaniline-magnetite nanocomposites

    Article • Synthetic Metals, April 2010, Elsevier

    Professor Fernando Machado

  67. Magnetic interactions and exchange-bias in nanocomposite system (Fe1−xCox)y(MnO)1−y

    Article • Journal of Physics Conference Series, January 2010, Institute of Physics Publishing

    Professor Fernando Machado

  68. Specific heat of the dilute antiferromagnetic system FexZn1-xF2

    Article • Journal of Physics Conference Series, January 2010, Institute of Physics Publishing

    Professor Fernando Machado

  69. Particle size distribution in FeAg granular alloy

    Article • Journal of Non-Crystalline Solids, November 2008, Elsevier

    Professor Fernando Machado

  70. Preparation and magnetic study of the CoFe2O4-CoFe2 nanocomposite powders

    Article • IEEE Transactions on Magnetics, November 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Fernando Machado

  71. Ring shaped magnetic field transducer based on the GMI effect

    Article • Measurement Science and Technology, January 2008, Institute of Physics Publishing

    Professor Fernando Machado

  72. Magnetic properties of prepared by an ICR technique

    Article • Journal of Magnetism and Magnetic Materials, March 2007, Elsevier

    Professor Fernando Machado

  73. Synthesis of α-Fe particles using a modified metal-membrane incorporation technique

    Article • Journal of Magnetism and Magnetic Materials, March 2007, Elsevier

    Professor Fernando Machado

  74. Anisotropy field and transverse susceptibility in nanocrystalline hexaferrites

    Article • Physica B Condensed Matter, October 2006, Elsevier

    Professor Fernando Machado

  75. GMI effect in the low magnetostrictive alloys

    Article • Physica B Condensed Matter, October 2006, Elsevier

    Professor Fernando Machado

  76. Structural and magnetic properties of nanoparticles of

    Article • Physica B Condensed Matter, October 2006, Elsevier

    Professor Fernando Machado

  77. Hall and giant magnetoimpedance effects in the Co70Fe5Si15B10 metallic glass

    Article • Journal of Non-Crystalline Solids, September 2006, Elsevier

    Professor Fernando Machado

  78. Preparation of AlRu intermetallic compounds by mechanical alloying

    Article • Journal of Non-Crystalline Solids, September 2006, Elsevier

    Professor Fernando Machado, Dr. ivair santos

  79. Synthesis and magnetic properties of the SiO2–BaFe12O19 glass–ceramic composites

    Article • Journal of Non-Crystalline Solids, September 2006, Elsevier

    Professor Fernando Machado

  80. Fe interparticle interactions inFexAg100−<...

    Article • Physical Review B, November 2005, American Physical Society (APS)

    Professor Fernando Machado

  81. Evidence of dynamical phase separation in La0.6Y0.1Ca0.3MnO3 manganite

    Article • Journal of Magnetism and Magnetic Materials, May 2004, Elsevier

    Professor Fernando Machado

  82. Magneto-impedance measurements in bulk samples of La0.7Ca0.3MnO3 and La0.6Y0.1Ca0.3MnO3

    Article • Journal of Alloys and Compounds, April 2004, Elsevier

    Professor Fernando Machado

  83. Low Temperature Magneto-Transport Properties of theI-Al6Ru Quasicrystalline Alloy

    Article • Ferroelectrics, January 2004, Taylor & Francis

    Professor Fernando Machado

  84. Brillouin light scattering in CMR manganite films

    Article • Physica B Condensed Matter, July 2002, Elsevier

    Professor Fernando Machado

  85. Low temperature magnetotransport properties of La0.55Ho0.15Sr0.3MnO3

    Article • Physica B Condensed Matter, July 2002, Elsevier

    Professor Fernando Machado

  86. Giant magnetoimpedance in FeAg granular alloys

    Article • Applied Physics Letters, April 2002, American Institute of Physics

    Professor Fernando Machado

  87. Magnetic Properties of Organic Acid-Doped Polyaniline

    Article • Molecular Crystals and Liquid Crystals, January 2002, Taylor & Francis

    Professor Fernando Machado

  88. Spin-glass and random-field effects in exchange-biased NiFe film on a NiO single-crystal substrate

    Article • Journal of Applied Physics, January 2002, American Institute of Physics

    Professor Fernando Machado

  89. Magnetic Properties of Organic Acid-Doped Polyaniline

    Article • Molecular Crystals and Liquid Crystals Science and Technology Section A Molecular Crystals and Liquid Crystals, January 2002, Taylor & Francis

    Professor Fernando Machado

  90. Anomalous magnetic behavior in holmium doped La0.7Sr0.3MnO3 film

    Article • Journal of Magnetism and Magnetic Materials, May 2001, Elsevier

    Professor Fernando Machado

  91. Detailed investigation of the GMI in a commercial soft-ferromagnetic amorphous alloy

    Article • Journal of Magnetism and Magnetic Materials, May 2001, Elsevier

    Professor Fernando Machado

  92. Effect of Al overlayers on the magnetic properties of Fe thin films

    Article • Journal of Magnetism and Magnetic Materials, May 2001, Elsevier

    Professor Fernando Machado

  93. GMI measurements in ribbons of Co70.4Fe4.6Si15B10 in a wide range of frequencies

    Article • Journal of Magnetism and Magnetic Materials, May 2001, Elsevier

    Professor Fernando Machado

  94. Measurement of the density of states of a Al6Ru quasicrystalline alloy by ultrafast thermomodulation

    Article • Solid State Communications, March 2001, Elsevier

    Professor Fernando Machado

  95. Interesting history effect in the magnetotransport properties of La0.55Ho0.15Sr0.3MnO3 films on LaAlO3

    Article • Solid State Communications, October 1999, Elsevier

    Professor Fernando Machado

  96. Highly Asymmetric Giant Magnetoimpedance

    Article • Materials Science Forum, January 1999, Trans Tech Publications

    Professor Fernando Machado

  97. Enhanced GMI in ribbons of Co70.4Fe4.6Si15B10 alloy

    Article • Journal of Magnetism and Magnetic Materials, January 1998, Elsevier

    Professor Fernando Machado

  98. A theoretical model for the giant magnetoimpedance in ribbons of amorphous soft-ferromagnetic alloys

    Article • Journal of Applied Physics, April 1996, American Institute of Physics

    Professor Fernando Machado

  99. Domains and giant magneto-impedance in amorphous ribbons by magneto-optical Kerr effect

    Article • Journal of Applied Physics, April 1996, American Institute of Physics

    Professor Fernando Machado

  100. Giant transversal magnetoimpedance and Hall-effect measurements in Co70.4Fe4.6Si15B10

    Article • Journal of Applied Physics, April 1996, American Institute of Physics

    Professor Fernando Machado

  101. Thermal and structural properties of the MY750 Epoxy diluted with xylene

    Article • Solid State Communications, September 1995, Elsevier

    Professor Fernando Machado

  102. Random-field-crossover scaling inMn0.35...

    Article • March 1995, American Physical Society (APS)

    Professor Fernando Machado

  103. Giant magnetoimpedance in the ferromagnetic alloyCo75

    Article • February 1995, American Physical Society (APS)

    Professor Fernando Machado

  104. ac susceptibility on the dilute antiferromagnet MnxZn1−xF2 close to the percolation threshold (abstract)

    Article • Journal of Applied Physics, May 1994, American Institute of Physics

    Professor Fernando Machado

  105. Giant ac magnetoresistance in the soft ferromagnet Co70.4Fe4.6Si15B10

    Article • Journal of Applied Physics, May 1994, American Institute of Physics

    Professor Fernando Machado

  106. Magnetoresistance of the random anisotropic Co70.4Fe4.6Si15B10alloy

    Article • Journal of Applied Physics, May 1993, American Institute of Physics

    Professor Fernando Machado

  107. Critical and equilibrium phase boundaries in Mn0.5Zn0.5F2

    Article • Journal of Magnetism and Magnetic Materials, February 1992, Elsevier

    Professor Fernando Machado

  108. Field induced transition in the amorphous ferromagnet Co70.4Fe4.6Si15B10

    Article • Journal of Magnetism and Magnetic Materials, February 1992, Elsevier

    Professor Fernando Machado

  109. Magnetization study of the IAl80Mn20 and TAl78Mn22 quasicrystalline phases

    Article • Journal of Magnetism and Magnetic Materials, February 1992, Elsevier

    Professor Fernando Machado

  110. Irreversibility line in the ferromagnet Co70.4Fe4.6Si15B10alloy

    Article • Journal of Applied Physics, November 1991, American Institute of Physics

    Professor Fernando Machado

  111. Spin-glass behavior in the A1:Mn quasicrystalline alloys

    Article • Solid State Communications, August 1991, Elsevier

    Professor Fernando Machado

  112. Magnetization study of the I‐Al80Mn20 and T‐Al78Mn22 quasicrystalline phases (abstract)

    Article • Journal of Applied Physics, April 1991, American Institute of Physics

    Professor Fernando Machado

  113. Spin‐glass behavior in the Al:Mn quasicrystalline alloys (abstract)

    Article • Journal of Applied Physics, April 1991, American Institute of Physics

    Professor Fernando Machado

  114. Scaling of the nonlinear susceptibility in the spin-glass TAl78Mn22 quasicrystalline alloy

    Article • Solid State Communications, July 1990, Elsevier

    Professor Fernando Machado

  115. Frequency-domain thermo-magnet memory effect in the Co/sub 75-x/Fe/sub x/Si/sub 15/B/sub 10/ alloys

    Article • IEEE Transactions on Magnetics, January 1989, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Fernando Machado

  116. Magnetic behaviour of the rare earth binary R-Fe alloys

    Article • IEEE Transactions on Magnetics, January 1989, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Fernando Machado

  117. Low-temperature resistivity and magnetoresistance of the quasicrystalline icosahedralAl

    Article • October 1988, American Physical Society (APS)

    Professor Fernando Machado

  118. Ripple method: An application of the square‐wave excitation method for heat‐capacity measurements

    Article • Review of Scientific Instruments, July 1988, American Institute of Physics

    Professor Fernando Machado

  119. Space-time-transformation technique in connection with the Schwinger action principle

    Article • Physics Letters A, July 1987, Elsevier

    Professor Fernando Machado

  120. Solvable Hill and Pöschl-Teller equations

    Article • April 1987, American Physical Society (APS)

    Professor Fernando Machado

  121. Low temperature heat capacity and magnetic study of the quasicrystalline decagonal Al7 8Mn2 2 alloy

    Article • Solid State Communications, March 1987, Elsevier

    Professor Fernando Machado

  122. Low temperature heat capacity and magnetic study of the Al80Mn20 icosahedral alloy

    Article • Solid State Communications, January 1987, Elsevier

    Professor Fernando Machado

  123. High resolution Raman scattering by phonons in FeF2 and NiF2

    Article • Solid State Communications, December 1983, Elsevier

    Professor Fernando Machado