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Crystal Structure and Magnetic Properties of new Eu-Pd-Sn Compounds

100%

Čurlík I., Gastaldo F., Giovannini M., Strydom A., Reiffers M.

Acta Physica Polonica A

2017

vol. 131

issue 4

1003-1005

We report on the synthesis, crystal structure determination, and magnetic susceptibility measurements of Eu₃Pd₂Sn₂, EuPd₂Sn₄, and EuPdSn₂. For all three compounds a divalent state of Eu ions was obtained from the fitting of the magnetic susceptibilities. At low temperatures Eu₃Pd₂Sn₂, EuPd₂Sn₄, and EuPdSn₂ order magnetically at 23, 12, and 13 K, respectively.

Structural and Physical Properties of the new Stannide Yb₃Pd₄Sn₁₃

73%

Gastaldo F., Giovannini M., Strydom A., Djoumessi R., Čurlík I., Reiffers M., Solokha P., Saccone A.

Acta Physica Polonica A

2017

vol. 131

issue 4

1006-1008

Among the new discovered intermetallics in the Yb-Pd-Sn system, the cubic phase Yb₃Pd₄Sn₁₃, with a lattice parameter of 0.9743(5) nm, emerges as a new member of the R₃T₄Sn₁₃ family (R = rare earth element, T = transition metal) crystallizing in the Yb₃Rh₄Sn₁₃-structure type. The effective magnetic moment μ_{eff}=1.84 μ_{B}/Yb is strongly reduced. Moreover, measurements of magnetic properties, specific heat and resistivity indicate superconductivity below 2.4 K. This compound is found to exhibit a strongly enhanced electronic specific heat at low temperature from which we infer a possible low-lying magnetic phase transition or other source of magnetic entropy.

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2 Acta Physica Polonica A

2 2017

2 Gastaldo F.

2 Giovannini M.

2 Reiffers M.

2 Strydom A.

2 Čurlík I.

1 Djoumessi R.

1 Saccone A.

1 Solokha P.

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Crystal Structure and Magnetic Properties of new Eu-Pd-Sn Compounds

Structural and Physical Properties of the new Stannide Yb₃Pd₄Sn₁₃