On the Magnetic Properties of the Compound Mn_2As

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概要

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• The thermomagnetic properties of a compound Mn_2As were investigated together with the phase diagram of Mn-As system. From the results of measurements of the temperature dependence of magnetic susceptibility and specific heat of the compound Mn_2As, it was found that this alloy is antiferromagnetic with the Neel point at 573°K. The reciprocal of its susceptibility obeys the Curie-Weiss law in the high temperature range, but a considerable deviation therefrom can be seen just above the Neel point as in the case of ferrimagnetism. Based on the Curie constant obtained by the present experiment, the effective magneton number was calculated to be 5.2 per manganese ion. The total heat absorption due to the vanishing of antiferromagnetic order of spins in the present alloy was estimated to be 230 Cal/mol. A discussion based on the molecular field theory is given on the nature of the above-mentioned magnetic properties.

• 社団法人日本物理学会の論文
• 1960-10-05

著者

• Yuzuri Motoyoshi

  The Research Institute For Iron Steel And Other Metals Tohoku University

• Yamada Motohiko

  The Research Institute For Iron Steel And Other Metals

• Yamada Motohiko

  The Research Institute For Iron Steel And Other Metals Tohoku University

• Yuzuri M.

  The Research Institute for Iron, Steel and Other Metals, Tohoku University

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• Electronic Phase Transition of Cesium Metal under High Pressure
• Metamagnetic Phase Transitions in FeTiO_3
• On the Magnetic Properties of Chromium Sulfides
• On the Magnetic Properties of Cr_2As and Cu_2Sb
• Antiferromagnetic Behavior of CrBr_3
• On the Magnetic Properties of the Compound Mn_2As

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