Magnetocaloric effect in Ho-Er-Gd-Co multicomponent compounds.

被引：0
|
作者：
Cwik, J. [1 ]
Palewski, T. [1 ]
Nenkov, K. [1 ,2 ]
Lyubina, J. [3 ]
Gutfleisch, O. [2 ]
机构：
[1] Int Lab High Magnet Fields & Low Temp, Gajowicka 95, PL-53421 Wroclaw, Poland
[2] IFW Dresden, Inst Metall Mat, D-01171 Dresden, Germany
[3] Imperial Coll London, Dept Mat, London SW7 2AZ, England
来源：
MAGNETISM AND MAGNETIC MATERIALS V | 2012年 / 190卷
关键词：
Intermetallic; Crystal structure; Magnetization; Heat capacity; Magnetocaloric effect; HEAT; HOCO2; TB;
D O I：
10.4028/www.scientific.net/SSP.190.303
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report magnetic and magnetocaloric properties of polycrystalline series of the (Ho0.9Er0.1)(1-x)GdxCo2 (x = 0.05, 0.1 and 0.15) solid solutions. These samples were synthesized using high purity rare earth metals and cobalt. X-ray diffraction patterns taken at room temperature reveal that all compounds have the C15 cubic Laves phase structure. Magnetization measurements were carried out using a vibration sample magnetometer with a step motor in fields up to 14 T using a Bitter-type magnet. Heat capacity measurements have been performed in the temperature range of 2-300 K without magnetic field and in a magnetic field of 1 and 2 T. The magnetocaloric effect has been estimated in terms of isothermal magnetic entropy change for all solid solutions in magnetic fields up to 3 T. The effect of increasing Gd amount in (Ho0.9Er0.1)(1-x)GdxCo2 on the magnetic and magnetocaloric properties will be discussed.
引用
收藏
页码：303 / +
页数：2
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