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  • Conference paper
    Penny C, Muxworthy AR, Fabian K, 2016,

    The Curie temperature of magnetite nanoparticles (poster)

    , EMRS Fall 2016
  • Conference paper
    Valdez-Grijalva MA, Nagy L, Muxworthy AR, Williams Wet al., 2016,

    Domain structure of greigite (Fe3S4) in the SD to PSD regime

    , 15th Castle Meeting
  • Conference paper
    Williams W, Nagy L, Ó Conbhuí P, Fabian K, Muxworthy AR, Almeida TPet al., 2016,

    The Hunting of the ‘Psark' - 40 Years On

    , 15th Castle Meeting
  • Conference paper
    Muxworthy AR, Almeida TP, Williams W, Dunin-Borkowski Ret al., 2016,

    Imaging magnetic stability of PSD magnetite

    , 15th Castle Meeting
  • Conference paper
    Nagy L, Williams W, Fabian K, Muxworthy AR, Almeida TPet al., 2016,

    Thermoremanent magnetization in pseudo-Single domain grains

    , 15th Castle Meeting
  • Conference paper
    Penny C, Muxworthy AR, Fabian K, 2016,

    The Curie temperature of magnetite nanoparticles (poster)

    , 15th Castle Meeting
  • Conference paper
    Shah J, Bates H, Muxworthy AR, Russell SS, Genge MJet al., 2016,

    A micro-CT conglomerate test (poster)

    , 15th Castle Meeting
  • Conference paper
    Shah J, Muxworthy AR, Almeida TP, Kovacs A, Russell SS, Genge M, Williams W, Dunin-Borkowski REet al., 2016,

    Determining the magnetic recording fidelity of chondrule dusty olivine

    , 15th Castle Meeting
  • Conference paper
    Supakulopas R, Muxworthy AR, Riishuus MS, Døssing A, Mac Niocaill Cet al., 2016,

    High-latitude palaeomagnetic field behaviour during 3-7 Ma in Northern Iceland

    , 15th Castle Meeting
  • Journal article
    Almeida TP, Muxworthy AR, Kovacs A, Williams W, Nagy L, Conbhuí PC, Frandsen C, Supakulopus R, Dunin-Borkowski REet al., 2016,

    Direct observation of the thermal demagnetization of magnetic vortex structures in non-ideal magnetite recorders

    , Geophysical Research Letters, Vol: 43, Pages: 8426-8434, ISSN: 1944-8007

    The thermal demagnetization of pseudo-single-domain (PSD) magnetite (Fe3O4) particles, which govern the magnetic signal in many igneous rocks, is examined using off-axis electron holography. Visualization of a vortex structure held by an individual Fe3O4 particle (~ 250 nm in diameter) during in situ heating is achieved through the construction and examination of magnetic-induction maps. Step-wise demagnetization of the remanence-induced Fe3O4 particle upon heating to above the Curie temperature, performed in a similar fashion to bulk thermal demagnetization measurements, revealed its vortex state remains stable under heating close to its unblocking temperature, and is recovered upon cooling with the same or reversed vorticity. Hence, the PSD Fe3O4 particle exhibits thermomagnetic behavior comparable to a single-domain carrier, and thus vortex-states are considered reliable magnetic recorders for paleomagnetic investigations.

  • Conference paper
    Berndt T, Muxworthy AR, 2016,

    Viscous Remanent Magnetization Dating of Floods

    , Beijing Earth and Planetary Interior Symposium
  • Conference paper
    Williams W, Nagy L, Fabian K, Ó Conbhuí P, Muxworthy AR, Almeida TPet al., 2016,

    The Hunting of the ‘Psark' - 40 Years On

    , Beijing Earth and Planetary Interior Symposium
  • Conference paper
    Di Chiara A, Muxworthy AR, Trindade R, 2016,

    Paleointensity of Proterozoic magmatic rocks from South America (poster)

    , EGU 2016
  • Conference paper
    Nagy L, Williams W, Muxworthy AR, Fabian K, Ó Conbhuí Pet al., 2016,

    Thermomagnetic Stability in Pseudo Single Domain Grains (invited)

    , EGU 2016
  • Conference paper
    Berndt T, Muxworthy AR, 2016,

    Magnetic dating of storm floods, jökulhlaups and tsunamis

    , EGU 2016

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