Microscale magnetic compasses

Shiozawa, Hidetsugu; Zhang, Desai; Eisterer, Michael; Ayala, Paola; Pichler, Thomas; McCartney, Martha R.; Smith, David J.

doi:10.1063/1.4985838

Title: Microscale magnetic compasses

Abstract

Microscale magnetic compasses have been synthesized with high yield. These ferromagnetic iron carbide nano-particles, which are encapsulated in a pair of parallel carbon needles, change their orientation in response to an external magnetic field. Electron holography reveals magnetic fields confined to the vicinity of the bicone-shaped particles, which are composed of only a few ferromagnetic domains. Aligned magnetically and encapsulated in an acrylate polymer matrix, these micro-compasses exhibit anisotropic bulk magnetic permeability with an easy axis normal to the needle direction that can be understood as a result of the anisotropic demagnetizing field of a non-spherical single-domain particle. Finally, this novel type of material with orthogonal magnetic and structural axes could be highly useful as magnetic components in electromagnetic wave absorbent materials and magnetorheological fluids.

Authors:

^[1];

^[2]; Eisterer, Michael ^[3]; Ayala, Paola ^[1]; Pichler, Thomas ^[1]; McCartney, Martha R. ^[2]; Smith, David J. ^[2]

Univ. of Vienna (Austria). Faculty of Physics
Arizona State Univ., Tempe, AZ (United States). Dept. of Physics
Technische Univ. Wien, Vienna (Austria). Atominstitut

Publication Date:: Fri Sep 01 00:00:00 EDT 2017

Research Org.:: Arizona State Univ., Tempe, AZ (United States)

Sponsoring Org.:: USDOE; Austrian Science Fund (FWF)

OSTI Identifier:: 1473880

Alternate Identifier(s):: OSTI ID: 1378143

Grant/Contract Number:: FG02-04ER46168

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 122; Journal Issue: 9; Journal ID: ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats


                    Shiozawa, Hidetsugu, Zhang, Desai, Eisterer, Michael, Ayala, Paola, Pichler, Thomas, McCartney, Martha R., and Smith, David J. Microscale magnetic compasses.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4985838.

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                    Shiozawa, Hidetsugu, Zhang, Desai, Eisterer, Michael, Ayala, Paola, Pichler, Thomas, McCartney, Martha R., & Smith, David J. Microscale magnetic compasses.  United States.  https://doi.org/10.1063/1.4985838

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                    Shiozawa, Hidetsugu, Zhang, Desai, Eisterer, Michael, Ayala, Paola, Pichler, Thomas, McCartney, Martha R., and Smith, David J. Fri .  
"Microscale magnetic compasses".  United States.  https://doi.org/10.1063/1.4985838.  https://www.osti.gov/servlets/purl/1473880.

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@article{osti_1473880,

  title        = {Microscale magnetic compasses},

  author       = {Shiozawa, Hidetsugu and Zhang, Desai and Eisterer, Michael and Ayala, Paola and Pichler, Thomas and McCartney, Martha R. and Smith, David J.},

  abstractNote = {Microscale magnetic compasses have been synthesized with high yield. These ferromagnetic iron carbide nano-particles, which are encapsulated in a pair of parallel carbon needles, change their orientation in response to an external magnetic field. Electron holography reveals magnetic fields confined to the vicinity of the bicone-shaped particles, which are composed of only a few ferromagnetic domains. Aligned magnetically and encapsulated in an acrylate polymer matrix, these micro-compasses exhibit anisotropic bulk magnetic permeability with an easy axis normal to the needle direction that can be understood as a result of the anisotropic demagnetizing field of a non-spherical single-domain particle. Finally, this novel type of material with orthogonal magnetic and structural axes could be highly useful as magnetic components in electromagnetic wave absorbent materials and magnetorheological fluids.},

  doi          = {10.1063/1.4985838},

  journal      = {Journal of Applied Physics},

  number       = 9,

  volume       = 122,

  place        = {United States},

  year         = {Fri Sep 01 00:00:00 EDT 2017},

  month        = {Fri Sep 01 00:00:00 EDT 2017}

}

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Title: Microscale magnetic compasses

Abstract

Citation Formats

Magnetic nanoparticles for drug delivery journal, June 2007

Orbital and spin magnetic moments of transforming one-dimensional iron inside metallic and semiconducting carbon nanotubes journal, May 2013

Spontaneous Emergence of Long-Range Shape Symmetry journal, January 2011

Multifunctional Magnetic Nanoparticles: Design, Synthesis, and Biomedical Applications journal, August 2009

Multifunctional Uniform Nanoparticles Composed of a Magnetite Nanocrystal Core and a Mesoporous Silica Shell for Magnetic Resonance and Fluorescence Imaging and for Drug Delivery journal, October 2008

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Carbon nanostructures as multi-functional drug delivery platforms journal, January 2013

Nickel clusters embedded in carbon nanotubes as high performance magnets journal, October 2015

Carbon nanotubes filled partially or completely with nickel journal, September 2000

Formation of graphite encapsulated ferromagnetic particles and a mechanism for their growth journal, August 1998

Carbon-encapsulated Fe nanoparticles from detonation-induced pyrolysis of ferrocene journal, January 2005

Growth and characterization of filled carbon nanotubes with ferromagnetic properties journal, September 2006

Nanocrystalline soft magnetic materials journal, July 1992

Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications journal, June 2008

The formation of graphite encapsulated metal nanoparticles during mechanical activation and annealing of soot with iron and nickel journal, February 2002

Size control of magnetic carbon nanoparticles for drug delivery journal, February 2010

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Magnetic nanoparticles in MR imaging and drug delivery☆ journal, August 2008

Carbon encapsulated magnetic nanoparticles for biomedical applications: Thermal stability studies journal, November 2007

Giant Magnetic Anisotropy of Single Cobalt Atoms and Nanoparticles journal, May 2003

Functionalisation of magnetic nanoparticles for applications in biomedicine journal, June 2003

Single Crystal Metals Encapsulated in Carbon Nanoparticles journal, January 1993

The preparation of magnetic nanoparticles for applications in biomedicine journal, June 2003

Tat peptide-derivatized magnetic nanoparticles allow in vivo tracking and recovery of progenitor cells journal, April 2000

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Medical application of functionalized magnetic nanoparticles journal, July 2005

Magnetic Nanoparticles: Synthesis, Protection, Functionalization, and Application journal, February 2007

Magnetic nanoparticles journal, October 1999

Electron-holographic interference microscopy journal, February 1992

Magnetic nanoparticles: Synthesis, stabilization, functionalization, characterization, and applications journal, March 2010

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A simple technique for preparing carbon encapsulated La and Eu nanoparticles journal, May 2009

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Development of Elongated Particle Magnets journal, March 1961

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Magnetic fluid hyperthermia (MFH): Cancer treatment with AC magnetic field induced excitation of biocompatible superparamagnetic nanoparticles journal, July 1999

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journal, June 2007

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journal, May 2013

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journal, January 2011

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journal, August 2009

Multifunctional Uniform Nanoparticles Composed of a Magnetite Nanocrystal Core and a Mesoporous Silica Shell for Magnetic Resonance and Fluorescence Imaging and for Drug Delivery
journal, October 2008

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journal, February 2003

Microscopic insight into the bilateral formation of carbon spirals from a symmetric iron core
journal, May 2013

Carbon nanostructures as multi-functional drug delivery platforms
journal, January 2013

Nickel clusters embedded in carbon nanotubes as high performance magnets
journal, October 2015

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journal, September 2000

Formation of graphite encapsulated ferromagnetic particles and a mechanism for their growth
journal, August 1998

Carbon-encapsulated Fe nanoparticles from detonation-induced pyrolysis of ferrocene
journal, January 2005

Growth and characterization of filled carbon nanotubes with ferromagnetic properties
journal, September 2006

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journal, July 1992

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journal, June 2008

The formation of graphite encapsulated metal nanoparticles during mechanical activation and annealing of soot with iron and nickel
journal, February 2002

Size control of magnetic carbon nanoparticles for drug delivery
journal, February 2010

Graphitic Encapsulation of Catalyst Particles in Carbon Nanotube Production
journal, April 2006

Magnetic nanoparticles in MR imaging and drug delivery☆
journal, August 2008

Carbon encapsulated magnetic nanoparticles for biomedical applications: Thermal stability studies
journal, November 2007

Giant Magnetic Anisotropy of Single Cobalt Atoms and Nanoparticles
journal, May 2003

Functionalisation of magnetic nanoparticles for applications in biomedicine
journal, June 2003

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journal, January 1993

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journal, September 2003

Medical application of functionalized magnetic nanoparticles
journal, July 2005

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journal, February 2007

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journal, February 1992

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journal, March 2010

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journal, October 1975

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journal, November 2006

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journal, August 2007

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journal, March 1961

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journal, July 1999