Synthesis, crystal structure and physical properties of Yb2Pd3Ge5

R. Freccero; S. H. Choi; P. Solokha; S. De Negri; T. Takeuchi; S. Hirai; P. Mele; A. Saccone

doi:10.1016/j.jallcom.2018.12.306

Synthesis, crystal structure and physical properties of Yb₂Pd₃Ge₅

R. Freccero, S. H. Choi, P. Solokha, S. De Negri, T. Takeuchi, S. Hirai, P. Mele, A. Saccone

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A systematic study on the existence of R₂Pd₃Ge₅ intermetallics with heavy rare earth metals (R = Gd–Lu) was conducted; only the Yb₂Pd₃Ge₅ was revealed to exist. Its crystal structure was established by X-ray powder diffraction and refined by means of Rietveld method. This compound crystallizes in the orthorhombic U₂Co₃Si₅ structure type (Ibam, oI40, Z = 4, a = 10.2628(1), b = 12.0580(1), and c = 5.98251(6) Å), which represents an ordered derivative of the tI10-ThCr₂Si₂ prototype, ubiquitous among intermetallics. Magnetization and susceptibility measurements indicate that Yb₂Pd₃Ge₅ is a paramagnet with μ_eff close to 0.8 μ_B/Yb-atom, suggesting a nearly divalent Yb state. Electrical resistivity and Seebeck coefficient of the studied compound as a function of temperature confirm its metallic-like behavior.

Original language	English
Pages (from-to)	601-607
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	783
DOIs	https://doi.org/10.1016/j.jallcom.2018.12.306
Publication status	Published - 2019 Apr 30

Keywords

Crystal structure
Germanides
Magnetic properties
Yb intermetallics

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2018.12.306

Cite this

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title = "Synthesis, crystal structure and physical properties of Yb2Pd3Ge5",

abstract = "A systematic study on the existence of R2Pd3Ge5 intermetallics with heavy rare earth metals (R = Gd–Lu) was conducted; only the Yb2Pd3Ge5 was revealed to exist. Its crystal structure was established by X-ray powder diffraction and refined by means of Rietveld method. This compound crystallizes in the orthorhombic U2Co3Si5 structure type (Ibam, oI40, Z = 4, a = 10.2628(1), b = 12.0580(1), and c = 5.98251(6) {\AA}), which represents an ordered derivative of the tI10-ThCr2Si2 prototype, ubiquitous among intermetallics. Magnetization and susceptibility measurements indicate that Yb2Pd3Ge5 is a paramagnet with μeff close to 0.8 μB/Yb-atom, suggesting a nearly divalent Yb state. Electrical resistivity and Seebeck coefficient of the studied compound as a function of temperature confirm its metallic-like behavior.",

keywords = "Crystal structure, Germanides, Magnetic properties, Yb intermetallics",

author = "R. Freccero and Choi, {S. H.} and P. Solokha and {De Negri}, S. and T. Takeuchi and S. Hirai and P. Mele and A. Saccone",

year = "2019",

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doi = "10.1016/j.jallcom.2018.12.306",

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AU - Freccero, R.

AU - Choi, S. H.

AU - Solokha, P.

AU - De Negri, S.

AU - Takeuchi, T.

AU - Hirai, S.

AU - Mele, P.

AU - Saccone, A.

PY - 2019/4/30

Y1 - 2019/4/30

N2 - A systematic study on the existence of R2Pd3Ge5 intermetallics with heavy rare earth metals (R = Gd–Lu) was conducted; only the Yb2Pd3Ge5 was revealed to exist. Its crystal structure was established by X-ray powder diffraction and refined by means of Rietveld method. This compound crystallizes in the orthorhombic U2Co3Si5 structure type (Ibam, oI40, Z = 4, a = 10.2628(1), b = 12.0580(1), and c = 5.98251(6) Å), which represents an ordered derivative of the tI10-ThCr2Si2 prototype, ubiquitous among intermetallics. Magnetization and susceptibility measurements indicate that Yb2Pd3Ge5 is a paramagnet with μeff close to 0.8 μB/Yb-atom, suggesting a nearly divalent Yb state. Electrical resistivity and Seebeck coefficient of the studied compound as a function of temperature confirm its metallic-like behavior.

AB - A systematic study on the existence of R2Pd3Ge5 intermetallics with heavy rare earth metals (R = Gd–Lu) was conducted; only the Yb2Pd3Ge5 was revealed to exist. Its crystal structure was established by X-ray powder diffraction and refined by means of Rietveld method. This compound crystallizes in the orthorhombic U2Co3Si5 structure type (Ibam, oI40, Z = 4, a = 10.2628(1), b = 12.0580(1), and c = 5.98251(6) Å), which represents an ordered derivative of the tI10-ThCr2Si2 prototype, ubiquitous among intermetallics. Magnetization and susceptibility measurements indicate that Yb2Pd3Ge5 is a paramagnet with μeff close to 0.8 μB/Yb-atom, suggesting a nearly divalent Yb state. Electrical resistivity and Seebeck coefficient of the studied compound as a function of temperature confirm its metallic-like behavior.

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KW - Germanides

KW - Magnetic properties

KW - Yb intermetallics

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