Measurements and applications of dynamic magnetic susceptibility
| Project/Area Number |
15H03718
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Doshisha University (2017)
Kochi University (2015-2016) |
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Principal Investigator |
Kodama Kazuto 同志社大学, 研究開発推進機構, 嘱託研究員 (00153560)
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| Co-Investigator(Kenkyū-buntansha) |
山本 裕二 高知大学, 教育研究部自然科学系理学部門, 教授 (00452699)
齋藤 武士 信州大学, 学術研究院理学系, 准教授 (80402767)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Keywords | 環境磁気 / 磁性ナノ粒子 / 磁化率 / 気候変動 / 岩石磁気 / 線形応答 / ナノ磁性粒子 / パルス磁気緩和 / 粒子サイズ |
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| Outline of Final Research Achievements |
This study consists of developing instrumentation to investigate the dynamic magnetization process of magnetic nano-particles and a series of experiments using such new instrumentation in both time domain and frequency domain. In the time domain, we measured free decay of magnetization induced by a pulse magnetic field. Based on linear transformation theory, such time-domain data can be transformed to those in the frequency domain from which broad-band frequency spectrum can result. Moreover, such measurements in the pulse magnetic field was found to be a rapid and easy-to-use method for the determination of magnetic hysteresis instead of the conventional method with VSM that is usually quite time-consuming.
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Impact of climate change on the magnetic mineral assemblage in marine sediments from Izu rear arc, NW Pacific Ocean, over the last 1 Ma2017
Author(s)
Kars, M., R. J. Musgrave, K. Kodama, A.-S. Jonas, M. Bordiga, W. Ruebsam, M. Vautravers, and T. Bauersachs
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 480
Pages: 53-69
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Asian monsoon modulation of non-steady state diagenesis in hemipelagic marine sediments offshore of Japan2016
Author(s)
Chang, L., C. T. Bolton, M. J. Dekkers, A. Hayashida, D. Heslop, W. Krijgsman, K. Kodama, G. A. Paterson, A. P. Roberts, E. J. Rohling , Y. Yamamoto, and X. Zhao.
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Journal Title
Geochem. Geophys. Geosyst.
Volume: 17
Issue: 11
Pages: 1-16
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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