Single Particle Multipole Expansions From Micromagnetic Tomography [PDF]
Geochemistry, Geophysics, Geosystems, 2021 Micromagnetic tomography aims at reconstructing large numbers of individual magnetizations of magnetic particles from combining high‐resolution magnetic scanning techniques with micro X‐ray computed tomography (microCT).
David Cortés‐Ortuño +2 more
doaj +13 more sources
Unraveling the Magnetic Signal of Individual Grains in a Hawaiian Lava Using Micromagnetic Tomography [PDF]
Geochemistry, Geophysics, Geosystems, 2023 Micromagnetic Tomography (MMT) is a new technique that allows the determination of magnetic moments of individual grains in volcanic rocks. Current MMT studies either showed that it is possible to obtain magnetic moments of relatively small numbers of ...
Martha E. Kosters +4 more
doaj +8 more sources
Micromagnetic Tomography for Paleomagnetism and Rock‐Magnetism [PDF]
Journal of Geophysical Research: Solid Earth, 2021 Abstract Our understanding of the past behavior of the geomagnetic field arises from magnetic signals stored in geological materials, e.g., (volcanic) rocks. Bulk rock samples, however, often contain magnetic grains that differ in chemistry, size, and shape; some of them record the Earth's magnetic field well, others are unreliable ...
Roger Fu +2 more
exaly +16 more sources
Mapping Magnetic Signals of Individual Magnetite Grains to Their Internal Magnetic Configurations Using Micromagnetic Models [PDF]
Journal of Geophysical Research: Solid Earth, 2022 Micromagnetic tomography (MMT) is a technique that combines X-ray micro computed tomography and scanning magnetometry data to obtain information about the magnetic potential of individual grains embedded in a sample.
Lennart V De Groot +2 more
exaly +8 more sources
Characterizing Magnetic Properties of Nanoparticle Systems: Insights from Electron Tomography and Micromagnetic Simulations [PDF]
BIO Web of ConferencesRadu Cristian, Kuncser Andrei Cristian
doaj +6 more sources
Most frequently asked questions about the coercivity of Nd-Fe-B permanent magnets [PDF]
Science and Technology of Advanced Materials, 2021 Physically, the coercivity of permanent magnets should scale with the anisotropy field of ferromagnetic compounds, HA; however, the typical coercivity values of commercial polycrystalline sintered magnets are only ~0.2 HA, which is known as Brown’s ...
Jiangnan Li +4 more
doaj +2 more sources
A First‐Order Statistical Exploration of the Mathematical Limits of Micromagnetic Tomography
Geochemistry, Geophysics, Geosystems, 2022 The recently developed Micromagnetic Tomography (MMT) technique combines advances in high resolution scanning magnetometry and micro X‐ray computed tomography.
Frenk Out +4 more
doaj +2 more sources
Field tunable three-dimensional magnetic nanotextures in cobalt-nickel nanowires
Physical Review Research, 2021 Cylindrical magnetic nanowires with large transversal magnetocrystalline anisotropy have been shown to sustain nontrivial magnetic configurations resulting from the interplay of spatial confinement, exchange, and anisotropies.
I. M. Andersen +10 more
doaj +1 more source
Improving co-registration of geoscientific imaging datasets with micro-sized marker structures on rock samples [PDF]
Geoscientific Instrumentation, Methods and Data SystemsPolished geological samples are frequently used in geoscientific research to investigate the chemical and physical characteristics of rocks. A broad range of imaging techniques is available to analyze such samples, but when combining datasets from ...
R. A. de Boer +2 more
doaj +1 more source
Advanced Materials, EarlyView.We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang +20 more
wiley +1 more source