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Control of transition features by combining electronic-structure modification and magnetovolume effect in La(Fe, Si)13 based compounds.

Number: 1582

Author(s) : FUJITA A., MATSUNAMI D., YAKO H.

Summary

To reduce a hysteresis of the first-order transition in La(Fe0.88Si0.12)13, the correlation between the electronic structure and energy barrier has been verified by ab-initio calculations. Consistent with the calculated results, a small hysteresis has been confirmed in La(Fe0.88Si0.10Al0.02)13. However, a magnetization jump at the transition becomes broad. The sharpness of the transition can be restored by a partial substitution of Pr. La0.8Pr0.2(Fe0.88Si0.10Al0.02)13 exhibits a sharp transition with a small hysteresis.

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Pages: 3 p.

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Details

  • Original title: Control of transition features by combining electronic-structure modification and magnetovolume effect in La(Fe, Si)13 based compounds.
  • Record ID : 30012945
  • Languages: English
  • Source: 6th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VI). Proceedings: Victoria, Canada, September 7-10, 2014.
  • Publication date: 2014/09/07

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