Synthesis, characterization, and magnetic properties of room-temperature nanofluid ferromagnetic graphite

Nicolás Souza; S. Sergeenkov; Carlos Speglich; V.A.G. Rivera; C. A. Cardoso; Helena Pardo; Álvaro W. Mombrú; Ariano De Giovanni Rodrigues; Orlando Fontes Lima; F. M. Araújo-Moreira

doi:10.1063/1.3265945

JOURNAL ARTICLE

Synthesis, characterization, and magnetic properties of room-temperature nanofluid ferromagnetic graphite

Nicolás Souza S. Sergeenkov Carlos Speglich V.A.G. Rivera C. A. Cardoso Helena Pardo Álvaro W. Mombrú Ariano De Giovanni Rodrigues Orlando Fontes Lima F. M. Araújo-Moreira

Year: 2009 Journal: Applied Physics Letters Vol: 95 (23) Publisher: American Institute of Physics

DOI: 10.1063/1.3265945

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Abstract

We report the chemical synthesis route, structural characterization, and physical properties of nanofluid magnetic graphite (NFMG) obtained from the previously synthesized bulk organic magnetic graphite (MG) by stabilizing the aqueous ferrofluid suspension with an addition of active cationic surfactant. The measured magnetization-field hysteresis curves along with the temperature dependence of magnetization confirmed room-temperature ferromagnetism in both MG and NFMG samples.

Keywords:

Ferrofluid Graphite Magnetization Nanofluid Ferromagnetism Materials science Hysteresis Magnetic hysteresis Pulmonary surfactant Condensed matter physics Characterization (materials science) Magnetic nanoparticles Aqueous solution Magnetic field Nanotechnology Chemical engineering Nanoparticle Composite material Chemistry Physical chemistry

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Diamond and Carbon-based Materials Research

Physical Sciences → Materials Science → Materials Chemistry

Magnetic properties of thin films

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Graphene research and applications

Physical Sciences → Materials Science → Materials Chemistry

Synthesis, characterization, and magnetic properties of room-temperature nanofluid ferromagnetic graphite

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