1. Magnetoelectric effect and phase transitions in CuO in external magnetic fields.

    Nature Communications 7:10295 (2016) PMID 26776921 PMCID PMC4735624

    Apart from being so far the only known binary multiferroic compound, CuO has a much higher transition temperature into the multiferroic state, 230 K, than any other known material in which the electric polarization is induced by spontaneous magnetic order, typically lower than 100 K. Although th...
  2. High Temperature Magnetic Stabilization of Cobalt Nanoparticles by an Antiferromagnetic Proximity Effect.

    Physical Review Letters 115(5):057201 (2015) PMID 26274435

    Thermal activation tends to destroy the magnetic stability of small magnetic nanoparticles, with crucial implications for ultrahigh density recording among other applications. Here we demonstrate that low-blocking-temperature ferromagnetic (FM) Co nanoparticles (T(B)<70  K) become magnetically s...
  3. Polar domain walls trigger magnetoelectric coupling.

    Scientific reports 5:13784 (2015) PMID 26387597 PMCID PMC4585675

    Interface physics in oxides heterostructures is pivotal in material's science. Domain walls (DWs) in ferroic systems are examples of naturally occurring interfaces, where order parameter of neighboring domains is modified and emerging properties may develop. Here we show that electric tuning of ...
  4. Synthesis, structure and in vitro cytotoxic studies of novel paramagnetic palladium(III) complexes with hematoporphyrin IX

    Journal of Inorganic Biochemistry 124:54 (2013) PMID 23603012

    Two coordination compounds of PdIII with hematoporphyrin IX ((7,12-bis(1-hydroxyethyl)-3,8,13,17-tetramethyl-21H-23H-porphyn-2,18-dipropionic acid), Hp), dinuclear [PdIII2(Hp-3H)Cl3(H2O)5]·2PdCl2, 1 and mononuclear [PdIII(Hp-2H)Cl(H2O)]·H2O, 2 were obtained and structurally characteriz...
  5. Dipolar driven spontaneous self assembly of superparamagnetic Co nanoparticles into micrometric rice-grain like structures.

    Langmuir 26(1):109 (2010) PMID 20038165

    Superparamagnetic single crystal single domain Co nanoparticles of 6 nm in diameter evaporated onto highly pyrolytic oriented graphite spontaneously self-assemble into super structures with an elongated shape. These structures have been studied by optical and scanning electron microscopies, atom...
  6. Comment on "Exchange bias dependence on interface spin alignment in a Ni80Fe20/(Ni,Fe)O thin film".

    Physical Review Letters 100(3):039701 (2008) PMID 18233047

  7. Exchange coupling mechanism for magnetization reversal and thermal stability of Co nanoparticles embedded in a CoO matrix

    Journal of Magnetism and Magnetic Materials 294(2):111 (2005)

    A model providing a semi-quantitative account of the magnetic behavior of Co nanoparticles embedded in a CoO matrix is presented. The results confirm that exchange coupling at the interface between ferromagnetic (FM) and antiferromagnetic (AFM) nanostructures could provide an extra source o...
  8. Effect of post deposition annealing on the hysteresis loops of sputtered NdFeB films

    Journal of Magnetism and Magnetic Materials 272:E877 (2004)

    We have studied the effect of post deposition annealing on the structure and magnetic properties of NdFeB films sputtered on Si (1 0 0) substrate. After annealing the films exhibit hard magnetic properties with room coercivities up to 7.3 kOe and maximum energy product of ...
  9. Beating the superparamagnetic limit with exchange bias.

    Nature 423(6942):850 (2003) PMID 12815426

    Interest in magnetic nanoparticles has increased in the past few years by virtue of their potential for applications in fields such as ultrahigh-density recording and medicine. Most applications rely on the magnetic order of the nanoparticles being stable with time. However, with decreasing part...
  10. The synthesis of superconducting bismuth compounds via oxalate coprecipitation

    Physica C: Superconductivity 157(1):108 (1989)

    The oxalate precipitation approach has been used to synthesize superconductive BiSrCaCuO materials. By computer modelling of the chemical equilibria, we have studied the operational criteria for the oxalate precipitation and thus established a laboratory routine. The coprecipitated oxalate ...