Thermal expansion of skutterudites

The current paper gives an overview of the newly obtained thermal expansion coefficients of skutterudites as well as those so far available in literature. Thermal expansion was determined for CoSb3, Pt4Sn4.4Sb7.6, for As- and Ge-based skutterudites as well as for various high-ZT skutterudites (micro- and nanostructured) with didymium (DD) and mischmetal (Mm) as filler atoms in frameworks of (Fe1−xCox)4Sb12 and (Fe1−xNix)4Sb12, and for double and triple-filled skutterudites such as Ca0.07Ba0.23Co3.95Ni0.05Sb12 and Sr0.025Ba0.075Yb0.1Co4Sb12. For low temperatures, a capacitance dilatometer was used (4–300 K), whereas for temperatures 300<T<750 K, a dynamic mechanical analyzer was employed. For a set of Ge-, P-, and Sb-based skutterudites, lattice parameters of single crystals, measured at three different temperatures, were used to derive the thermal expansion coefficient. The semiclassical model of Mukherjee [Phys. Rev. Lett. 76, 1876 (1996)] has been successfully used to quantitatively describe the thermal...

[1]  A. Bjørseth,et al.  Compounds with the Skutterudite Type Crystal Structure. III. Structural Data for Arsenides and Antimonides. , 1974 .

[2]  W. Schranz,et al.  Confinement effects on glass forming liquids probed by dynamic mechanical analysis , 2008, 1001.3769.

[3]  A. Kjekshus,et al.  High Temperature X-Ray Study of the Thermal Expansion of IrAs3 and IrSb3. , 1961 .

[4]  W. Schranz.  Dynamic mechanical analysisa powerful tool for the study of phase transitions , 1997 .

[5]  M. Schmidt,et al.  Itinerant iron magnetism in filled skutterudites CaFe4Sb12 and YbFe4Sb12: Stable divalent state of ytterbium , 2005 .

[6]  J. Jeffries,et al.  Thermodynamic and transport studies of the ferromagnetic filled skutterudite compound PrFe 4 As 12 , 2008 .

[7]  Havlik,et al.  Heat-diffusion central peak in the elastic susceptibility of KSCN. , 1994, Physical review letters.

[8]  I. Kityk,et al.  Low-temperature anomalies of photoinduced second harmonic generation in skutterudites , 2003 .

[9]  W. Jeitschko,et al.  Preparation and structural investigations of antimonides with the LaFe4P12 structure , 1980 .

[10]  M. Rotter,et al.  A miniature capacitance dilatometer for thermal expansion and magnetostriction , 1998 .

[11]  E. Bauer,et al.  MmFe4Sb12- and CoSb3-based nano-skutterudites prepared by ball milling: Kinetics of formation and transport properties , 2009 .

[12]  E. Bauer,et al.  High thermoelectric performance of triple-filled n-type skutterudites (Sr,Ba,Yb)yCo4Sb12 , 2009 .

[13]  E. J. Freeman,et al.  Heavy fermion behaviour of the cerium-filled skutterudites ? and ? , 1998 .

[14]  J. Fleurial,et al.  Thermal Expansion and Some Properties of CoSb3, RhSb3 and IrSb3 , 2008 .

[15]  B. Sales,et al.  FILLED SKUTTERUDITE ANTIMONIDES : ELECTRON CRYSTALS AND PHONON GLASSES , 1997 .

[16]  R. Griessen,et al.  Two capacitance dilatometers , 1973 .

[17]  J. Genossar,et al.  A tilted‐plate capacitance displacement sensor , 1990 .

[18]  B. Sales,et al.  Thermoelectric properties of thallium-filled skutterudites , 2000 .

[19]  Mukherjee,et al.  Thermal expansion study of ordered and disordered Fe3Al: An effective approach for the determination of vibrational entropy. , 1996, Physical review letters.

[20]  A. Grytsiv,et al.  Thermoelectric properties of novel skutterudites with didymium: DDy(Fe1−xCox)4Sb12 and DDy(Fe1−xNix)4Sb12 , 2010 .

[21]  P. Haen,et al.  Thermal expansion of filled skutterudite compound GdRu4P12 , 2009 .

[22]  Jean-Pierre Fleurial,et al.  Properties of single crystalline semiconducting CoSb3 , 1996 .

[23]  E. Bauer,et al.  Structural and physical properties of n-type skutterudite Ca0.07Ba0.23Co3.95Ni0.05Sb12 , 2010 .

[24]  A. Pietraszko,et al.  Crystal Growth and Properties of the Filled Skutterudite Arsenides , 2008 .

[25]  M. Baenitz,et al.  Weak itinerant ferromagnetism and electronic and crystal structures of alkali-metal iron antimonides: NaFe4Sb12 and KFe4Sb12 , 2004 .

[26]  T. Yagi,et al.  Superconductivity of LaRu4X12 (X = P, As and Sb) with skutterudite structure , 1999 .

[27]  A. W. Pryor,et al.  Thermal vibrations in crystallography , 1975 .

[28]  M. Rotter,et al.  Superconductivity in novel Ge-based skutterudites: {Sr,Ba}pt4Ge12. , 2007, Physical review letters.

[29]  E. Bauer,et al.  Evidence for rattling behavior of the filler atom(L)in the filled skutteruditesLT4X12(L=Ce,Eu,Yb;T=Fe,Ru;X=P,Sb)from EXAFS studies , 2004 .

[30]  G. A. Slack,et al.  Some properties of semiconducting IrSb3 , 1994 .

[31]  Keppens,et al.  Disparate atomic displacements in skutterudite-type LaFe3CoSb12, a model for thermoelectric behavior. , 1999, Acta crystallographica. Section B, Structural science.

[32]  R. Baumbach,et al.  Enhanced spin fluctuations in the As-based filled skutteruditeLaFe4As12: AL139aNMR andA75sNQR study , 2009 .

[33]  O. Anderson,et al.  A simplified method for calculating the debye temperature from elastic constants , 1963 .

[34]  Thierry Caillat,et al.  Preparation and thermoelectric properties of the skutterudite‐related phase Ru0.5Pd0.5Sb3 , 1996 .