The structural, transport, and magnetic properties of Yb-filled skutterudites YbyFexCo4−xSb12 synthesized under high pressure | Zendy

Yuqi Chen | Zendy; Yukihiro Kawamura | Zendy; Junichi Hayashi | Zendy; Keiki Takeda | Zendy; Chihiro Sekine | Zendy

Open Access

The structural, transport, and magnetic properties of Yb-filled skutterudites YbyFexCo4−xSb12 synthesized under high pressure

Author(s) -

Yuqi Chen,

Yukihiro Kawamura,

Junichi Hayashi,

Keiki Takeda,

Chihiro Sekine

Publication year - 2016

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4972194

Subject(s) - rietveld refinement , skutterudite , electrical resistivity and conductivity , materials science , seebeck coefficient , crystallite , thermoelectric effect , debye model , thermal conductivity , analytical chemistry (journal) , lattice constant , condensed matter physics , valence (chemistry) , magnetization , thermoelectric materials , crystal structure , crystallography , diffraction , thermodynamics , chemistry , metallurgy , optics , magnetic field , composite material , physics , organic chemistry , chromatography , quantum mechanics

The effects of Fe-substitution on partially Yb filled skutterudites YbyFexCo4-xSb12 are presented from the viewpoint of crystal structure and thermoelectric, magnetic, and transport properties. A series of polycrystalline n-type YbyFexCo4-xSb12 (0.21 ≤ y ≤ 0.47, 0 ≤ x ≤ 0.76) samples were prepared using a high-pressure and high-temperature method. X-ray diffraction data suggest that all the compounds are high-purity skutterudites. For the YbyFexCo4-xSb12 with Yb content higher than 0.29 and Fe content lower than 1, the lattice constant shows a saturated behavior despite the change in the Yb/Fe content. Rietveld refinement based on the synchrotron radiation X-ray data implies that the rectangular Sb4 ring is transformed into square with increasing Yb content and/or Fe substitution content. The Yb valence gradually decreases as the Fe content increases from magnetic susceptibility analysis. According to the specific heat analysis, higher Yb filling benefits the lower Debye temperature while the Fe substitut...

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research