Academic literature on the topic 'Magnetism history, magnetometry, data analysis'

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Journal articles on the topic "Magnetism history, magnetometry, data analysis"

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Plesca, Diana, Cristian Enachescu, Radu Tanasa, Alexandru Stancu, Denis Morineau, and Marie-Laure Boillot. "Streamlining First-Order Reversal Curves Analysis of Molecular Magnetism Bistability Using a Calorimetric Approach." Materials 18, no. 14 (2025): 3413. https://doi.org/10.3390/ma18143413.

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We present an alternative to the classical SQUID magnetometric measurements for the First-Order Reversal Curve (FORC) diagram approach by employing differential scanning calorimetry (DSC) experiments. After discussing the main results, the advantages and limitations of the magnetometric FORCs, we introduce the calorimetric method. We argue that, while the results are comparable to those obtained via magnetometry, the calorimetric method not only significantly simplifies the required mathematical computations but also detects subtle or overlapping phase transitions that might be hard to disting
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Pettifer, G. R., N. Djordjevic, D. Heislers, J. Schaeffer, and J. A. Withers. "Geophysical and image processing methods for detection of fireholes in brown coal, Latrobe Valley." Exploration Geophysics 20, no. 2 (1989): 153. http://dx.doi.org/10.1071/eg989153.

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Fireholes at the top of the thick Latrobe Valley brown coal seams pose a geotechnical hazard to overburden dredges and reduce coal reserves. Overburden thickness (typically 10 to 15 m) is up to 50 m in the fireholes, which are from 20 to hundreds of metres in diameter and are infilled with baked clays, soft lacustrine clays and alluvial deposits.Given the complexity of firehole geometry and overburden geology, firehole definition prior to overburden stripping, by drilling alone, is expensive and is not definitive. To improve firehole exploration, geophysical methods were tried in a test area w
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Salazar-Rodriguez, Roberto, Domingo Aliaga Guerra, Jean-Marc Greneche, et al. "Presence of Induced Weak Ferromagnetism in Fe-Substituted YFexCr1−xO3 Crystalline Compounds." Nanomaterials 12, no. 19 (2022): 3516. http://dx.doi.org/10.3390/nano12193516.

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Fe-substituted YFexCr1−xO3 crystalline compounds show promising magnetic and multiferroic properties. Here we report the synthesis and characterization of several compositions from this series. Using the autocombustion route, various compositions (x = 0.25, 0.50, 0.6, 0.75, 0.9, and 1) were synthesized as high-quality crystalline powders. In order to obtain microscopic and atomic information about their structure and magnetism, characterization was performed using room temperature X-ray diffraction and energy dispersion analysis as well as temperature-dependent neutron diffraction, magnetometr
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Vacca, Valentina, Matteo Murgia, Federica Govoni, et al. "Magnetic Fields in Galaxy Clusters and in the Large-Scale Structure of the Universe." Galaxies 6, no. 4 (2018): 142. http://dx.doi.org/10.3390/galaxies6040142.

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The formation and history of cosmic magnetism is still widely unknown. Significant progress can be made through the study of magnetic fields properties in the large-scale structure of the Universe: galaxy clusters, filaments, and voids of the cosmic web. A powerful tool to study magnetization of these environments is represented by radio observations of diffuse synchrotron sources and background or embedded radio galaxies. To draw a detailed picture of cosmic magnetism, high-quality data of these sources need to be used in conjunction with sophisticated tools of analysis.
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Good, Gregory A. "Between Data, Mathematical Analysis and Physical Theory: Research on Earth’s Magnetism in the 19th Century." Centaurus 50, no. 3 (2008): 290–304. http://dx.doi.org/10.1111/j.1600-0498.2008.00130.x.

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Filzwieser, Roland, Vujadin Ivanišević, Geert J. Verhoeven, et al. "Integrating Geophysical and Photographic Data to Visualize the Quarried Structures of the Roman Town of Bassianae." Remote Sensing 13, no. 12 (2021): 2384. http://dx.doi.org/10.3390/rs13122384.

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Large parts of the urban layout of the abandoned Roman town of Bassianae (in present-day Serbia) are still discernible on the surface today due to the deliberate and targeted quarrying of the Roman foundations. In 2014, all of the town’s intramural (and some extramural) areas were surveyed using aerial photography, ground-penetrating radar, and magnetometry to analyze the site’s topography and to map remaining buried structures. The surveys showed a strong agreement between the digital surface model derived from the aerial photographs and the geophysical prospection data. However, many structu
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Michalík, Jozef, Otília Lintnerová, Patrycja Wójcik-Tabol, et al. "Paleoenvironments during the Rhaetian transgression and the colonization history of marine biota in the Fatric Unit (Western Carpathians)." Geologica Carpathica 64, no. 1 (2013): 39–62. http://dx.doi.org/10.2478/geoca-2013-0003.

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Abstract Terminal Triassic environmental changes are characterized by an integrated study of lithology, litho- and cyclostratigraphy, paleontology, mineralogy, geochemistry and rock magnetism in the Tatra Mts. The Carpathian Keuper sequence was deposited in an arid environment with only seasonal rivers, temporal lakes and swamps with scarce vegetation. Combination of a wide range of δ18O values (-0.7 to + 2.7) with negative δ13C values documents dolomite precipitation either from brackish or hypersaline lake water, or its derivation from pore water comparably to the Recent Coorong B-dolostone.
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Lan, Luu Thi Phuong, Ellwood Brooks B., Tomkin Jonathan H., et al. "Correlation and high-resolution timing for Paleo-tethys Permian-Triassic boundary exposures in Vietnam and Slovenia using geochemical, geophysical and biostratigraphic data sets." VIETNAM JOURNAL OF EARTH SCIENCES 40, no. 3 (2018): 253–70. http://dx.doi.org/10.15625/0866-7187/40/3/12617.

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Two Permian-Triassic boundary (PTB) successions, Lung Cam in Vietnam, and Lukač in Slovenia, have been sampled for high-resolution magnetic susceptibility, stable isotope and elemental chemistry, and biostratigraphic analyses. These successions are located on the eastern (Lung Cam section) and western margins (Lukač section) of the Paleo-Tethys Ocean during PTB time. Lung Cam, lying along the eastern margin of the Paleo-Tethys Ocean provides an excellent proxy for correlation back to the GSSP and out to other Paleo-Tethyan successions. This proxy is tested herein by correlating the Lung Cam se
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Haghighirad, Amir-Abbas, Ryo Ichikawa, Toshio Miyamachi, et al. "STM imaging and electronic correlation in van der Waals ferromagnet Fe3GeTe2." Japanese Journal of Applied Physics, April 1, 2025. https://doi.org/10.35848/1347-4065/adc7be.

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Abstract In this work, we present a comprehensive study on high-quality crystals of the van der Waals ferromagnet Fe3-xGeTe2 (FGT), using techniques including scanning tunneling microscopy (STM), atomic force microscopy (AFM), Kelvin probe force microscopy (KPFM), magnetometry, and X-ray magnetic circular dichroism (XMCD). STM and AFM reveal the atomic-scale surface morphology, highlighting the high crystallinity and terrace structures in FGT. KPFM measurements indicate electronic structure modifications across different domains. From sum rule analysis of the XMCD data, a significant differenc
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Heij, Gerhard, and Richard Douglas Elmore. "Unraveling the complex burial history of the Antrim formation in Michigan basin using paleomagnetism, rock magnetism and geochemistry." Frontiers in Earth Science 10 (August 31, 2022). http://dx.doi.org/10.3389/feart.2022.944220.

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This paper presents an integrated paleomagnetic, rock magnetic and geochemical study of the Devonian Antrim shale in the Michigan Basin. Specimens were obtained from two unoriented vertical cores (named St. Chester and Krocker) and sampled relative to a master specimen orientation line. Alternating field (AF) demagnetization experiments isolated a lower coercivity component (LC) from 0 to ∼60 mT in the Krocker core and corresponds to a Jurassic (170 Ma ± 25) magnetization. Higher coercivity components (HC) in the Krocker core are unblocked from ∼60 to 120 mT and unlike LC components, occasiona
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Dissertations / Theses on the topic "Magnetism history, magnetometry, data analysis"

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CALI, ELISA. "Data Analysis and Pattern Recognition in a Magnetometer Experiment." Doctoral thesis, Università di Siena, 2022. http://hdl.handle.net/11365/1214194.

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The object of our research is the analysis of different series of data that have been collected in an experiment embedded by Prof. Ferruccio Renzoni’s Group in the Laboratory of Coherent Spectroscopy at the Physics Department of University College of London (UCL). The goal of the Thesis has been the determination of a simple, but robust algorithm able to correctly define the contour of an object, as detected by an optical magnetometer, when in presence of noise, as due by the necessary limitations in the technical construction of the experiment. Furthermore, the idea can be applied to a much l
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