کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8155738 | 1524826 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Itinerant-electron metamagnetism of the Hf1âxTaxFe2 (x=0.125 and 0.14) compounds under high pressure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The effect of hydrostatic pressure on the magnetic properties has been investigated for itinerant-electron metamagnetic Hf1âxTaxFe2 (x=0.125 and 0.14) compounds which exhibit a temperature-induced transition from the ferromagnetic (FM) to the antiferromagnetic (AFM) state upon heating. Both the magnetic transition temperature TFM-AFM and the spontaneous magnetization MS decreases with increasing pressure. The application of an external pressure leads also to the strong increase of the AFM-FM transition field μ0Hcr. The magnitude of the pressure coefficient, dln(TFM-AFM)/dP, is much larger than that of dln(MS)/dP. This extremely large difference between the pressure coefficients is explained by the influence of spin fluctuations on the magnetovolume effects in the compounds Hf0.875Ta0.125Fe2 and Hf0.86Ta0.14Fe2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 395, 1 December 2015, Pages 251-256
Journal: Journal of Magnetism and Magnetic Materials - Volume 395, 1 December 2015, Pages 251-256
نویسندگان
L.V.B. Diop, Z. Arnold, O. Isnard,