The magnetic behavior of La1−xTbxMn2Si2 (0≤x≤0.3) in weak magnetic fields |
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Authors: | A. Elmali |
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Affiliation: | Department of Engineering Physics, Faculty of Engineering, Ankara University, Be?evler, TR 06100 Ankara, Turkey |
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Abstract: | The structure and magnetic properties of La1−xTbxMn2Si2 (0≤x≤0.3) were studied by X-ray powder diffraction and DC magnetization measurements. All the compounds crystallize in ThCr2Si2-type structure. Substitution of Tb for La led to a linear decrease in the lattice constants and the unit-cell volume. A ferromagnetic phase for x≤0.15, and an antiferromagnetic phase for x=0.3 have been observed at about room temperature, whereas the compounds with x=0.2 and 0.25 exhibit a magnetic phase transition from ferromagnetism to antiferromagnetism. |
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Keywords: | 75.20.En 75.25.+z 75.25.&minus m |
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