Lattice dynamics in the FeSb3 skutterudite

A. Möchel; I. Sergueev; N. Nguyen; Gary J. Long; Fernande Grandjean; D. C. Johnson; R. P. Hermann

doi:10.1103/PhysRevB.84.064302

Lattice dynamics in the FeSb₃ skutterudite

A. Möchel
, I. Sergueev
, N. Nguyen
, Gary J. Long
, Fernande Grandjean
, D. C. Johnson
, R. P. Hermann

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

42 Scopus citations

Abstract

Thin films of FeSb₃ were characterized by electronic transport, magnetometry, x-ray diffraction, 57Fe and 121Sb nuclear inelastic scattering, and 57Fe Mössbauer spectroscopy. Resistivity and magnetometry measurements reveal semiconducting behavior with a 16.3(4) meV band gap and an effective paramagnetic moment of 0.57(6) μ_B, respectively. A systematic comparison of the lattice dynamics with CoSb₃ and EuFe ₄Sb₁₂ reveals that the Fe₄Sb₁₂ framework is softer than the Co₄Sb₁₂ framework, and that the observed softening and the associated lowering of the lattice thermal conductivity in the RFe₄Sb₁₂ filled skutterudites are not only related to the filler but also to the Fe₄Sb₁₂ framework.

Original language	English
Article number	064302
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	84
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.84.064302
State	Published - Aug 19 2011
Externally published	Yes

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title = "Lattice dynamics in the FeSb3 skutterudite",

abstract = "Thin films of FeSb3 were characterized by electronic transport, magnetometry, x-ray diffraction, 57Fe and 121Sb nuclear inelastic scattering, and 57Fe M{\"o}ssbauer spectroscopy. Resistivity and magnetometry measurements reveal semiconducting behavior with a 16.3(4) meV band gap and an effective paramagnetic moment of 0.57(6) μB, respectively. A systematic comparison of the lattice dynamics with CoSb3 and EuFe 4Sb12 reveals that the Fe4Sb12 framework is softer than the Co4Sb12 framework, and that the observed softening and the associated lowering of the lattice thermal conductivity in the RFe4Sb12 filled skutterudites are not only related to the filler but also to the Fe4Sb12 framework.",

author = "A. M{\"o}chel and I. Sergueev and N. Nguyen and Long, \{Gary J.\} and Fernande Grandjean and Johnson, \{D. C.\} and Hermann, \{R. P.\}",

year = "2011",

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day = "19",

doi = "10.1103/PhysRevB.84.064302",

language = "English",

volume = "84",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

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TY - JOUR

T1 - Lattice dynamics in the FeSb3 skutterudite

AU - Möchel, A.

AU - Sergueev, I.

AU - Nguyen, N.

AU - Long, Gary J.

AU - Grandjean, Fernande

AU - Johnson, D. C.

AU - Hermann, R. P.

PY - 2011/8/19

Y1 - 2011/8/19

N2 - Thin films of FeSb3 were characterized by electronic transport, magnetometry, x-ray diffraction, 57Fe and 121Sb nuclear inelastic scattering, and 57Fe Mössbauer spectroscopy. Resistivity and magnetometry measurements reveal semiconducting behavior with a 16.3(4) meV band gap and an effective paramagnetic moment of 0.57(6) μB, respectively. A systematic comparison of the lattice dynamics with CoSb3 and EuFe 4Sb12 reveals that the Fe4Sb12 framework is softer than the Co4Sb12 framework, and that the observed softening and the associated lowering of the lattice thermal conductivity in the RFe4Sb12 filled skutterudites are not only related to the filler but also to the Fe4Sb12 framework.

AB - Thin films of FeSb3 were characterized by electronic transport, magnetometry, x-ray diffraction, 57Fe and 121Sb nuclear inelastic scattering, and 57Fe Mössbauer spectroscopy. Resistivity and magnetometry measurements reveal semiconducting behavior with a 16.3(4) meV band gap and an effective paramagnetic moment of 0.57(6) μB, respectively. A systematic comparison of the lattice dynamics with CoSb3 and EuFe 4Sb12 reveals that the Fe4Sb12 framework is softer than the Co4Sb12 framework, and that the observed softening and the associated lowering of the lattice thermal conductivity in the RFe4Sb12 filled skutterudites are not only related to the filler but also to the Fe4Sb12 framework.

UR - https://www.scopus.com/pages/publications/80052367705

U2 - 10.1103/PhysRevB.84.064302

DO - 10.1103/PhysRevB.84.064302

M3 - Article

AN - SCOPUS:80052367705

SN - 1098-0121

VL - 84

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 6

M1 - 064302

ER -

Lattice dynamics in the FeSb₃ skutterudite

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