Abstract
The results of investigation of the Tb0.2Gd0.8 single crystal forced magnetostriction are presented. Temperature dependences of magnetostriction have been measured from 4 to 300°K in applied magnetic fields up to 14 T. The giant field induced magnetostriction ~ 1.5•10-3 was discovered in the room temperature region in magnetic fields up to 14 T.
Highlights
The magnetostriction is the mechanical deformation of magnetic samples due to the changes in the magnetization degree or in the magnetization direction [1]
The rare earth metals (REM) and their alloys form an important class of materials with giant magnetostriction [1,2,3]
The temperature dependencies of λcc and λbc magnetostrictions in 6 T magnetic field are shown in fig
Summary
The magnetostriction is the mechanical deformation of magnetic samples due to the changes in the magnetization degree or in the magnetization direction [1]. In this work the magnetostriction of Tb0.2Gd0.8 single crystal in strong magnetic fields up to 14 T was investigated. This alloy has a relatively high Curie temperature due to high concentration of Gd and giant values of magnetostriction caused by Tb content, which has high values of single-ion magnetostriction. The combination of strong exchange interactions and high magnetostriction in TbxGd1-x alloys makes them promising objects in terms of theoretical research and practical applications. For these applications it is essential to know about field and temperature dependences of magnetostriction
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