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摘要: 本文介绍了在活塞-圆筒型装置中建立的高压下原位测量居里温度的方法。采用简单的测量电路,不需要锁相放大器等精密仪器,系统仍具有较高的灵敏度,足以满足测量小样品的要求。合理的高压组装结构保证了测量的成功率。实验结果表明,测量的重复性误差小于1 ℃。Abstract: A measurement of the Curie temperature for the ferromagnetic meterial pressed by the piston in a cylindric pressure vessel. The system has higher sensitivity so that the small samples could be measured, though it consists only of simple measuring circuits and without precise instruments such as the phase lock amplifier. The measurement turns out a success due to the reasonable configuration for getting high pressure. The measurement data show that the repetability error is less than 1 ℃.
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Key words:
- Curic temperature /
- high pressure /
- noncrystalline alloy
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张云, 等. 物理, 1984, 13: 742. Kaneko T, Yoshida H, et al. J Appl Phys, 1981, 52: 2046. Shirakawa K, Fukamichi K, et al. Physica B, 1983, 119: 192. Leger J M, Loriers-Susse C, et al. Phys Rev B, 1972, 6: 4250. Jayaraman A, Hutson A R, et al. Rev Sci Instr, 1967, 38: 44.
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