Anomalous Thermal Expansion and Spontaneous Magnetostriction of Gd2Fe16.5Cr0.5 Compound
Keyword(s):
X Ray
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The thermal expansion and magnetic properties of Gd2Fe16.5Cr0.5compound have been investigated by means of X-ray diffraction and magnetization measurements. The Gd2Fe16.5Cr0.5compound has a rhombohedral Th2Zn17-type structure. The Curie temperature of Gd2Fe16.5Cr0.5compound is about 560K. This value is about 50K higher than that value of the mother compound Gd2Fe17. A small average thermal expansion coefficient, = 1.65×10-6/K, and a negative average thermal expansion coefficient, = -1.46×10-5/K, were found in Gd2Fe16.5Cr0.5compound by X-ray diffraction in the temperature range 294 - 514K, and 514-613K, respectively. There exists anisotropic strong spontaneous magnetostriction in the magnetic state of Gd2Fe16.5Cr0.5compound.
2017 ◽
Vol 254
(5)
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pp. 1600695
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2011 ◽
Vol 299-300
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pp. 47-50
2009 ◽
Vol 24
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pp. 1989-1993
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2011 ◽
Vol 311-313
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pp. 764-767
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