Miguel Alexandre Novak

Instituição:

Universidade Federal do Rio de Janeiro

Centro:

Centro de Ciências Matemáticas e da Natureza

Unidade:

Instituto de Física

Departamento:

Departamento de Física dos Sólidos/I Fis

ORCID:

não disponível no Lattes


Formação:
  • Centre de Recherche sur les Tres Basses Temperatures-CNRS

    | Pós-Doutorado | 1991 - 1993
  • University of Utah

    Fisica | Doutorado | 1980 - 1984
  • Universidade Federal do Rio de Janeiro

    Física | Mestrado | 1977 - 1980
  • Universidade Federal do Rio de Janeiro

    Física | Graduação | 1973 - 1976
Laboratórios:
Nenhum laboratório cadastrado
Nuvens de Palavras:
Artigos:

(96.18% artigos com DOI)

Titulo DOI Ano
Lattice Solvent Engineering Improves the Stability of a Cobalt Pyrenylnitronylnitroxide Ferrimagnetic Chain 10.1021/acs.inorgchem.3c01543 2023
Magnetic dynamics of NiMn2O4 spinel produced by a simple aqueous sol-gel route 10.1016/j.jmmm.2021.168291 2021
Correction to Synthesis, Magnetic and High-Field EPR Investigation of Two Tetranuclear Ni -Based Complexes 10.1021/acs.inorgchem.0c00562 2020
Magnetic Cationic Copper(II) Chains and a Mononuclear Cobalt(II) Complex Containing [Ln(hfac) 4 ] − Blocks as Counterions 10.1021/acs.inorgchem.8b02929 2019
Molecular spintronics 10.1063/1.5113900 2019
Lanthanide chains containing the naphthalenyl nitronyl nitroxide radical 10.1039/c9ra06506g 2019
Synthesis, Magnetic and High-Field EPR Investigation of Two Tetranuclear Ni -Based Complexes 10.1021/acs.inorgchem.9b01816 2019
Core-Shell Fe-Pt Nanoparticles in Ionic Liquids: Magnetic and Catalytic Properties 10.1021/acs.jpcc.7b12219 2018
Synthesis, Crystal Structures, and EPR Studies of First Mn III Ln III Hetero-binuclear Complexes 10.1021/acs.inorgchem.7b02575 2018
Water-Based Metallic Nickel Magnetic Fluids 10.1166/jon.2018.1438 2018
Synthesis, crystal structure, magnetic properties and DFT calculations of a mononuclear copper(II) complex: Relevance of halogen bonding for magnetic interaction 10.1016/j.ica.2018.06.033 2018
The interplay between single particle anisotropy and interparticle interactions in ensembles of magnetic nanoparticles 10.1039/C8CP03934H 2018
Synthesis, Crystal Structure and Magnetic Properties of Heteropolynuclear Re M Complexes Based on the Robust [ReCl (pyzCOO)] Unit (pyzCOO = 2-pyrazinecarboxylate) 10.1002/ejic.201501487 2016
One-dimensional coordination polymers constructed from binuclear 3d-4f nodes and isonicotinato spacer 10.1039/c6ce00729e 2016
Binuclear Lanthanide-Radical Complexes Featuring Two Centers with Different Magnetic and Luminescence Properties 10.1021/acs.inorgchem.6b01616 2016
Exchange bias effect in polycrystalline NiO/NiMn2O4 composite 10.1016/j.jallcom.2014.12.179 2015
Synthesis, Crystal Structure and Magnetic Properties of a Novel Heterobimetallic Rhenium(IV)-Dysprosium(III) Chain 10.1002/chem.201500168 2015
A two-dimensional Cu II -Mn II heterometallic coordination polymer: structure determination using synchrotron X-ray powder diffraction and magnetic properties 10.1039/c5ce01537e 2015
A Single-Chain Magnet with a Very High Blocking Temperature and a Strong Coercive Field 10.1021/acs.inorgchem.5b01431 2015
A stochastic model for magnetic dynamics in single-molecule magnets 10.1016/j.jmmm.2015.11.070 2015
A Cobalt Pyrenylnitronylnitroxide Single-Chain Magnet with High Coercivity and Record Blocking Temperature 10.1002/chem.201304852 2014
Specific heat and magnetization studies of spin-glass like transition in nanogranular Cu90Co10 ribbon 10.1016/j.jmmm.2014.06.028 2014
Anisotropic magnetic carbon materials based on graphite and magnetite nanoparticles 10.1016/j.carbon.2014.05.064 2014
New Families of Hetero-tri-spin 2p−3d−4f Complexes: Synthesis, Crystal Structures, and Magnetic Properties 10.1021/ic5008044 2014
Synthesis, crystal structures and magnetic behaviour of four coordination compounds constructed by using a phosphinic amide-TEMPO radical and [M(hfac)2] (M=CuII, CoII and MnII) building blocks 10.1039/C4DT01444H 2014
Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6-(methylthio)phenol 10.1016/j.poly.2013.01.005 2013
Two co-crystalline M(hfac)2(IPhIN)2·M(hfac)2 (M = Mn, Co) compounds with a bis(iminoylnitroxide) biradical: structure and magnetism 10.1039/c3nj00047h 2013
Macroscopic quantum tunneling of magnetization explored by quantum-first-order reversal curves 10.1063/1.4816131 2013
Controlled synthesis of Mn3O4 nanoparticles in ionic liquids 10.1039/c3dt32348j 2013
Heptanuclear cobalt(II) dicubane compounds with single-molecule magnet behavior 10.1016/j.inoche.2013.09.034 2013
New Synthetic Route toward Heterometallic 3d-3d- and 3d-4f Single-Molecule Magnets. The First Co II -Mn III Heterometallic Complex 10.1021/ic401479d 2013
Radicals organized by disk shaped aromatics ¿ polymorphism and co-crystals that tune inter-electron exchange 10.1039/c1ce06096a 2012
Assembly of ¿-Fe2O3/polyaniline nanofilms with tuned dipolar interaction 10.1007/s11051-011-0653-z 2012
Control of magnetic behavior by Pb1-xMnxS nanocrystals in a glass matrix 10.1063/1.3694734 2012
Magnetic Mn and Co Complexes with a Large Polycyclic Aromatic Substituted Nitronylnitroxide 10.1021/ic202623p 2012
Magnetic properties of nanoscale crystalline maghemite obtained by a new synthetic route 10.1016/j.jmmm.2012.04.049 2012
Tuning of Magnetic Dipolar Interactions of Maghemite Nanoparticles Embedded in Polyelectrolyte Layer-by-Layer Films 10.1166/jnn.2012.4554 2012
Two Cobalt(II) Cubane Compounds: The Key Role of Small Ligand Changes on the Crystal Packing and Magnetic Properties 10.1002/ejic.201200615 2012
Structure and morphology of spinel MFe2O4 (M=Fe, Co, Ni) nanoparticles chemically synthesized from heterometallic complexes 10.1016/j.jcis.2011.03.001 2011
Catalytic properties of thioredoxin immobilized on superparamagnetic nanoparticles 10.1016/j.jinorgbio.2011.02.006 2011
Synthesis, crystal structure, magnetism and electrochemical properties of two copper(II) furoyltrifluoroacetonate complexes with nitroxide radical 10.1016/j.ica.2011.02.026 2011
Synthesis, crystal structures, electrochemical and magnetic properties of polynuclear {Fe4} and {Fe8Na4} carboxylate/picolinate clusters 10.1016/j.ica.2011.02.021 2011
Magnetic coupled electrochemistry: Exploring the use of superparamagnetic nanoparticles for capturing, transporting and concentrating trace amounts of analytes 10.1016/j.elecom.2010.11.016 2011
Dynamic study of the internal magnetic order of Mn3O4 nanoparticles 10.1007/s11051-011-0314-2 2011
Synthesis, crystal structure, magnetism and specific heat of a new copper(II) compound with p-aminobenzoic acid 10.1016/j.ica.2011.08.035 2011
Determination of the relevant magnetic interactions in low-dimensional molecular materials: the fundamental role of single crystal high frequency EPR 10.1039/c1dt10780a 2011
cis-[Ni(¿-ox)(H2O)2]¿: Metal organic coordination polymer assembled by oxalate ligand: Structural and magnetic characterization 10.1016/j.poly.2011.03.035 2011
Magnetic Nanocomposites Fabricated via the Layer-by-Layer Approach 10.1166/jnn.2010.1411 2010
A new family of oxime-based hexanuclear manganese(iii) single molecule magnets with high anisotropy energy barriers 10.1039/c0cc00485e 2010
Compostos magnéticos moleculares: o desenvolvimento de novos materiais magnéticos nanoestruturados 10.1590/S0100-40422010000800024 2010
Dinuclear copper(II) complexes of a novel 3-(aminomethyl)naphthoquinone Mannich base: Synthesis, structural, magnetic and electrochemical studies 10.1016/j.poly.2010.07.011 2010
Design of 1D and 2D molecule-based magnets with the ligand 4,5-dimethyl-1,2-phenylenebis(oxamato) 10.1039/c0dt00796j 2010
Fabrication and characterization of nanostructured conducting polymer films containing magnetic nanoparticles 10.1016/j.tsf.2008.09.062 2009
[Cu(H2btec)(bipy)]?: a novel metal organic framework (MOF) as heterogeneous catalyst for the oxidation of olefins 10.1039/b810414j 2009
Crystal Structure and Magnetic Properties of a New Chiral Manganese(II) Three-Dimensional Framework: Na 3 [Mn 3 (HCOO) 9 ] 10.1021/ic8019292 2009
New copper(II)-radical one dimensional chain: Synthesis, crystal structure, EPR, magnetic properties and DFT calculations 10.1039/b902967b 2009
Mononuclear and Polynuclear Copper(II) Complexes Derived from Pyridylalkylaminomethylphenol Polypodal Ligands 10.1021/ic901026x 2009
Layer-by-Layer Assembly of Bifunctional Nanofilms: Surface-Functionalized Maghemite Hosted in Polyaniline 10.1021/jp8092463 2009
Magnetic Studies of CoFe2O4/SiO2 Aerogel and Xerogel Nanocomposites 10.1166/jnn.2009.1245 2009
Investigation of the static and dynamic magnetic properties of CoFe2O4 nanoparticles 10.1016/j.jmmm.2008.02.065 2008
Synthesis, structure, electronic and magnetic properties of two new complexes obtained by coordination of Co(II) and Mn(II) phenyltrifluoroacetylacetonate with a nitronyl nitroxide radical 10.1016/j.ica.2008.03.043 2008
Low temperature specific heat of the single molecule magnet Fe8 10.1016/j.ica.2008.03.032 2008
Cobalt Nanocubes in Ionic Liquids: Synthesis and Properties 10.1002/anie.200804200 2008
Synthesis of nanoparticles of CoxFe(3?x)O4 by combustion reaction method 10.1016/j.jmmm.2006.05.022 2007
Ligand Design for Heterobimetallic Single-Chain Magnets: Synthesis, Crystal Structures, and Magnetic Properties of MIICuII (M=Mn, Co) Chains with Sterically Hindered Methyl-Substituted Phenyloxamate Bridging Ligands 10.1002/chem.200600992 2007
Magnetic order in the S=1?2 two-dimensional molecular antiferromagnet copper pyrazine perchlorate Cu(Pz)2(ClO4)2 10.1103/PhysRevB.75.094421 2007
Aging Investigation of Cobalt Ferrite Nanoparticles in Low pH Magnetic Fluid 10.1021/la701358g 2007
Synthesis, structural and magnetic characterization of a new copper(II)-nitronyl nitroxide radical complex 10.1590/S0103-50532007000500007 2007
New unsymmetric dinuclear CuIICuII complexes and their relevance to copper(II) containing metalloenzymes and DNA cleavage 10.1016/j.jinorgbio.2006.01.041 2006
Dynamic behavior of superparamagnetic iso-oriented magnesioferrite nanoparticles 10.1016/j.physb.2006.07.005 2006
Magnetic Nanocomposite Thin Films Prepared by Sol-Gel Process 2006
Solid state and solution characterization of a new dinuclear nickel (II) complex: The search for synthetic models for urease 10.1016/j.molstruc.2006.03.043 2006
Synthesis, molecular structure and spectroscopic, electrochemical and magnetic properties of a new dinuclear iron complex containing µ-sulfate-di-µ-alkoxo bridges: evaluating the influence of the sulfate bridge on the physicochemical properties of the di-µ-alkoxo-diiron unit 10.1590/S0103-50532006000800015 2006
Relaxation in magnetic nanostructures 10.1016/j.jmmm.2005.03.026 2005
Synthesis and characterisation of [[μ-(1,7,11,17-tetraaza-2,6,12,16-tetraoxacycloeicosane)][(μ-(aquo)]bis[(acac)(ethanol)nickel(II)]] [BPh4]2 10.1016/j.ica.2004.10.023 2005
Dynamic effects in one-dimensional A?ABO 10.1016/j.jmmm.2005.03.067 2005
Magnetic properties of molecular compounds based on a new polydentate ligand 10.1016/j.jmmm.2005.03.053 2005
Fast switching of bistable magnetic nanowires through collective spin reversal 10.1063/1.2001160 2005
Magnetic investigation of zero-field-cooled dextran-coated magnetite-based magnetic fluid 10.1016/j.jmmm.2004.11.051 2005
Finite-size effects on the static properties of a single-chain magnet 10.1103/PhysRevB.72.064406 2005
A CuIICoII Metallacyclophane-Based Metamagnet with a Corrugated Brick-Wall Sheet Architecture 10.1002/anie.200352604 2004
Temperature dependence of the coercive field in single-domain particle systems 10.1103/PhysRevB.70.014419 2004
Finite-Size Effects in Single Chain Magnets: An Experimental and Theoretical Study 10.1103/PhysRevLett.92.207204 2004
Preparation of ferrofluid from cyclodextrin and magnetite 10.1016/j.jmmm.2003.12.975 2004
Finite size effects on the experimental observables of the Glauber model: a theoretical and experimental investigation 10.1016/j.jmmm.2003.12.1209 2004
Magnetic relaxation in molecular nanostructures 10.1016/j.jmmm.2003.12.1384 2004
Magnetic properties of an interlocked molecular magnet 10.1016/S0277-5387(03)00249-3 2003
Pressure effects of a genuine organic crystalline ferromagnet dupeyredioxyl 10.1016/S0277-5387(03)00164-5 2003
Cluster glass-like behavior in a 2D bimetallic molecule-based magnet 10.1016/S0277-5387(03)00221-3 2003
Glauber slow dynamics of the magnetization in a molecular Ising chain 10.1209/epl/i2002-00416-x 2002
Role of the alloy structure in the magnetic behavior of granular systems 10.1103/PhysRevB.66.214407 2002
Preparation of Magnetite Nanoparticles in Mesoporous Copolymer Template 10.1021/nl005533k 2001
Atomic force microscopy and magnetization investigation of a water-based magnetic fluid 10.1016/S0304-8853(00)01203-8 2001
Magnetic properties in granular Co10Cu90 alloys: the effect of random anisotropy and interparticle interactions 10.1016/S0304-8853(00)00854-4 2001
Low temperature specific heat of molecular nanomagnets and the contribution of the internal fields 10.1016/S0304-8853(01)00094-4 2001
Pulsed field studies on the quantum nanomagnet Mn12Ac 10.1016/S0921-4526(00)00665-7 2001
Low temperature specific heat and magnetic properties of the pure organic ferromagnet Dupeyredioxyl 10.1016/S0277-5387(01)00645-3 2001
Granular Cu-Co alloys as interacting superparamagnets 10.1103/PhysRevB.64.144420 2001
New properties of the [3-MeRad]2[Mn2{Cu(opba)}3] system [3-MeRad+=radical cation, opba=ortho-phenylenebis(oxamato)]: a molecule-based magnet with two-dimensional behavior 10.1016/S0020-1693(01)00595-3 2001
Cobalt(II)-Nitronyl Nitroxide Chains as Molecular Magnetic Nanowires 10.1002/1521-3773(20010504)40:9<1760::AID-ANIE17600>3.0.CO;2-U 2001
Quantum tunneling of magnetization in Mn[sub 12]Bz clusters: Evidences of spin parity effect 10.1063/1.372594 2000
Quantum Molecular Nanomagnets 1999
Coercivity extrema in melt-spun CuCo ribbons: Effects of the magnetic moment distribution 10.1063/1.371161 1999
The molecular approach to nanoscale magnetism 10.1016/S0304-8853(99)00408-4 1999
Specific heat and magnetic relaxation of the quantum nanomagnet Mn12Ac 10.1103/PhysRevB.57.5021 1998
Unusual properties of the molecular nanomagnet Mn[sub 12]ac 10.1063/1.367830 1998
1D Manganese(II) Derivatives of an Imidazole-Substituted Nitronyl Nitroxide. An Approach toward Molecular Magnetic Materials of High Dimensionality 10.1021/ic971619d 1998
Magnetic properties of the quaternary intermetallic compounds RNiBC (R=Ho, Dy, Tb, Gd, Dy1?xGdx) 10.1016/S0304-8853(98)00187-5 1998
Magnetômetros Fluxgate. - L.C.Benyoseff e M.A.Novak 1996
Magnetic properties of a Mn cluster organic compound 10.1016/0304-8853(94)00860-4 1995
Ferromagnetic order in the sulfur-containing nitronyl nitroxide radical, 2-(4-thiomethyl)phenyl-4,4,5,5-tetramethylimidazoline-l-oxyl-3-oxide, NIT(SMe)Ph 10.1002/adma.19950070515 1995
Mesoscopic quantum tunneling of the magnetization 10.1016/0304-8853(94)00585-0 1995
Study of 57Fe doped (Y,Ca) Ba2Cu4O8 by magnetic susceptibili and M�ssbauer measurements 10.1016/0921-4534(94)92028-1 1994
Mössbauer investigation of57Fe-doped YBa2Cu4O8 and Y0.95Ca0.05Ba2Cu4O8. Influence of high pressure oxygen treatment 10.1007/BF02072936 1994
A ferromagnetic transition at 1.48 K in an organic nitroxide 10.1038/363147a0 1993
Magnetic bistability in a metal-ion cluster 10.1038/365141a0 1993
Quantum tunnelling in magnetic particles, layers and multilayers 10.1088/0031-8949/1993/T49A/047 1993
Magnetic ordering in nitroxide multiradicals 10.1088/0031-8949/1993/T49B/055 1993
Quantum tunneling in magnetic systems of various sizes (invited) 10.1063/1.352508 1993
Characteristics of YBaCuO magnetic shields 10.1109/20.133562 1991
Exchange interactions and magnetic dimension in Cu(L-alanine)2 10.1103/PhysRevB.43.1074 1991
Medidas de Calor Especifico A Baixas Temperaturas. 1990
Thermal diffusivity of superconducting YBa2Cu3O7?x 10.1063/1.340401 1988
Very Low Temperature Magnetization Of Cu(L-Ala)2. 1987
Spin-glass transition of a dilute Ag-Mn alloy in a magnetic field 10.1103/PhysRevB.33.343 1986
Scaling behavior of a dilute spin glass of Ag-Mn 10.1016/0304-8853(86)90517-2 1986
Spin freezing below the nearest-neighbor percolation concentration in Cd_{1-x}Mn_{x}Te and Cd_{1-x}Mn_{x}Se 10.1103/PhysRevB.33.6391 1986
Spin glass behavior of Cd1?xMnxTe below the nearest-neighbor percolation limit 10.1063/1.335062 1985
Magnetic phase diagram of Cd1¿xMnxSe below the nearest neighbor percolation limit 10.1016/0378-4363(84)90209-2 1984
Magnetization of hemoglobin and myoglobin below 1 k 10.1016/0375-9601(83)90066-X 1983
Transition from spin-glass to single impurity behavior in Cd¿Mn¿Te. 10.1016/0378-4363(81)90462-9 1981
Eventos:

(0.00% eventos com DOI)

Titulo DOI Ano
A diversidade da Fisica nos materiais moleculares magnéticos 2001
Quantum Behavior of Nanomagnets 1999
Unusual properties of the molecular nanomagnet Mn12ac 1998
AC Susceptibility Relaxation Studies on an Organic Cluster Compound: Mn12Ac 1995
Low temperature magnetic properties of an organic compound 1995
Ferrimagnetic Compounds Based on Nitronyl Nitroxide Radicals 1995
Anysotropy Of Oxigen Deficient Y-Ba-Sr-Cu-O Single Crystal 1992
Very Low Temperature Magnetization of Cu(L-ALA)2 1987
Magnetic Phase Diagram of Cd1-xMnxSe below the nearest neighbor percolation limit 1984
Spin Glass Behaviour of Cd1-xMnxTe Below the nearest neighbor percolation limit 1984
Transition from spin glass to single impurity behaviour in CdMnTe 1981
Medidas de calor específico de pequenas amostras metálicas à baixas temperaturas 1980
Propriedades magnéticas do sistema intermetálico Ce(FexAl1-x)2 1980
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