Internal Friction Originating from Random Magnetism
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概要
- 論文の詳細を見る
We investigated the relation between internal friction and magnetism due to a random arrangement of magnetic atoms by using the Mn–Cu–Ni–Fe alloy, called M2052. Its internal friction and dc susceptibility were measured as a function of the temperature from 4.2 K to room temperature. As for the internal friction, two peaks were observed at around 70 K and 270 K; the peak at the lower temperature was shifted by changing the measurement frequency. A comparison of the temperature dependency of the susceptibility and the internal friction indicated that freezing of the magnetic moments of ferromagetic clusters could cause low-temperature internal friction. We confirmed that relaxation related to the internal friction is consistent with magnetic relaxation in random magnetism.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-06-15
著者
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Shintomi Takakazu
High Energy Accelerator Research Organization (kek)
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TOMARU Takayuki
High Energy Accelerator Research Organization
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SUZUKI Toshikazu
High Energy Accelerator Research Organization
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Moriwaki Shigenori
Department Of Advanced Material Science The University Of Tokyo
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Mio Norikatsu
Department Of Advanced Material Science The University Of Tokyo
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Tanji Toru
Department of Advanced Materials Science, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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Suzuki Toshikazu
High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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- Internal Friction Originating from Random Magnetism