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

页码：303 / +

页数：2

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