Synthesis, Crystal Chemistry, and Physical Properties of Ternary Intermetallic CompoundsAn2T2X(An=Pu, Am;X=ln, Sn;T=Co, Ir, Ni, Pd, Pt, Rh)

Pereira, L. C. J.; Wastin, F.; Winand, J.M.; Kanellakopoulos, B.; Rébizant, J.; Spirlet, J.C.; Almeida, Manuel

doi:10.1006/jssc.1997.7563

Cited by 16 publications

(6 citation statements)

References 15 publications

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“…The tetragonal Zr 3 Al 2 -type structure is a superstructure (doubling of the c-axis) of the tetragonal U 3 Si 2 -type. This latter structure was reported for the majority of the U 2:2:1 compounds [1,15] and all Np [1,7], Pu and Am [16] 2:2:1 compounds.…”

Section: Discussionsupporting

confidence: 54%

Structural, magnetic and transport properties of single-crystalline

Estrela

Pereira²,

Visser³

et al. 1998

J. Phys.: Condens. Matter

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Single crystals of the heavy-electron compound have been grown by a modified mineralization technique. The x-ray structure refinement shows that single crystals form in the structure, instead of the structure reported for polycrystalline material. The polymorphism of is attributed to the experimental parameters, such as pressure and temperature, during the sample preparation process. The single-crystal susceptibility data reveal a weak maximum for at K, indicating the presence of short-range antiferromagnetic correlations, while has the tendency to diverge at low T (T > 2 K). The electrical resistivity of the single crystals (T > 0.3 K) is best described by with for and for . The magnetic and transport data show pronounced deviations from the standard Fermi-liquid picture, and lead to a classification of as a non-Fermi-liquid compound. As the origin of NFL behaviour in we propose the proximity to a quantum critical point or Kondo disorder.

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Section: Discussionsupporting

confidence: 54%

Structural, magnetic and transport properties of single-crystalline

Estrela

Pereira²,

Visser³

et al. 1998

J. Phys.: Condens. Matter

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“…The Pt atom is surrounded by six Sr, two Cd and one Pt atoms with a Pt-Pt distance of 2.734 (1) Å . This distance is slightly longer than those found in Ca 2 CdPt 2 (2.659 Å ; Samal & Corbett, 2012) or Sr 2 InPt 2 (2.707 Å ; Muts et al, 2007) but shorter than those in Pu 2 SnPt 2 (Pereira et al, 1997), U 2 CdPt 2 (Gravereau et al, 1994) or Ce 2 CdPt 2 (Pö ttgen et al, 2000). All other interatomic distances (Sr-Cd, Sr-Pt, and Cd-Pt) are in agreement with those found in some ternary compounds in A/Cd/Pt systems (A = alkaline earth metal).…”

Section: Structural Commentarymentioning

confidence: 51%

“…The Pt-based ternary intermetallic compounds with general formula A 2 XPt 2 (A = alkaline-earth or rare-earth metal; X = diel, triel, or tetrel element) adopt five different structure types. Sr 2 InPt 2 (Muts et al, 2007) crystallizes in the monoclinic Ca 2 Ir 2 S type (Schoolaert & Jung, 2002), Pu 2 SnPt 2 (Pereira et al, 1997) in the tetragonal Mo 2 FeB 2 type (Gladyshevskii et al, 1996) while U 2 CdPt 2 has its own structure type (Gravereau et al, 1994). Ce 2 CdPt 2 (Pö ttgen et al, 2000) adopts the tetragonal U 3 Si 2 type (Zachariasen, 1948), and Ca 2 CdPt 2 (Samal & Corbett, 2012) the orthorhombic Ca 2 GaCu 2 type (Fornasini & Merlo, 1988).…”

Section: Chemical Contextmentioning

confidence: 99%

Crystal structure of Sr₂CdPt₂containing linear platinum chains

2016

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“…From the starting composition Np Ge , a two-phase Rietveld re"nement of the powder (1) 6Ge(1) 3.136 (1) 2Ge (1) 2.966 (2) 6Np(2) 3.536 (1) 1Ge (1) 3.058 (3) 2Ge(1) 3.089 (1) 4Np(1) 3.536 (1) 4Np(2) 3.833 (1) Central atom: Ge(1) Central atom: Ge (2) Ligand atom Distance Ligand atom Distance 2Np(2) 2.966(3) 6Np(2) 2.848(1) 1Np (2) 3.058 (2) 2Ge (2) 2.963(0) 2Np (2) 3.089 (2) 6Ge (1) 3.621(3) 4Np (1) 3.136(1) 2Ge (2) 3.621(3) 2Ge (1) 3.682 (2) di!raction data, showing the equilibrium between the AlB type and the neighboring binary phase NpGe (see below), leads to the lattice parameters a"3.9712(2) A s , c"4.1702(2) A s and to an occupation factor of 1.48(1) Ge, i.e., approximately Np Ge .…”

Section: Npge \Vmentioning

confidence: 97%