Pressure dependence of the crystalline field coefficient in Er₂Fe₁₇C₂

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• 作者：Ohno ; K. ; Shimazawa ; K. ; Saito ; T. ; Shinagawa ; K. ; Tsushima ; T. ; Takahashi B ; T. ; Mô ; ri ; N.
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：1995
• 出版时间：February, 1995
• 年：1995
• 卷：140-144
• 期：Complete
• 页码：1013-1014
• 全文大小：163 K

文摘

The pressure dependence of the spin reorientation in Er₂Fe₁7C₂ was measured by means of ac initial susceptibility under 1-12 kbar. As a result, the spin reorientation temperature shifted toward the higher side with increasing pressure. From this experimental observation it is believed that the pressure increases the anisotropy energy of the rare earth. That is, the pressure effect is equal to increasing the absolute value of the negative second-order crystalline field coefficient A₂₀. The change in A₂₀ is estimated to be reasonable from the value of Young's modulus of Er₂Fe₁₇.