Synthesis and crystal structures of Nd6Pt13In22, Sm6Pt12.30In22.70, and Gd6Pt12.48In22.52

Zaremba, Vasyl’ I.; Dubenskiy, Vitaliy P.; Rodewald, Ute Ch.; Heying, Birgit; Pöttgen, Rainer

doi:10.1016/j.jssc.2005.12.022

Cited by 9 publications

(11 citation statements)

References 17 publications

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“…Indium as a flux has been widely used for the crystal growth of principally known binary or ternary phases. − It has been little exploited as a synthetic medium compared to Al and Ga, ,,− especially for quaternary compounds, although there is now an increasing interest in this approach. − Our work with In flux includes only a limited number of quaternary phases so far, such as the RE 4 Ni 2 InGe 4 (RE = Dy, Ho, Er, Tm) and RE 7 Co 4 InGe 12 (RE = Dy, Ho, Yb) …”

Section: Introductionmentioning

confidence: 99%

“…[35][36][37][38][39][40][41][42] It has been little exploited as a synthetic medium compared to Al and Ga, 33,36,[43][44][45][46][47][48][49][50][51][52][53] especially for quaternary compounds, although there is now an increasing interest in this approach. [54][55][56][57][58][59][60][61][62][63] Our work with In flux includes only a limited number of quaternary phases so far, such as the RE 4 Ni 2 InGe 4 (RE=Dy, Ho, Er, Tm) 62 and RE 7 Co 4 InGe 12 (RE=Dy, Ho, Yb). 63 After the rich chemistry revealed by the thorough examination of the ternary RE/Au/In system, we decided to incorporate also a tetrelide such as Ge in order to search for more complex structures and compositions and to compare with the analogous RE/T/Al/Si or Ge and RE/T/Ga/Ge or Si systems investigated previously.…”

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confidence: 99%

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Yb₃AuGe₂In₃: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

et al. 2011

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Yb(3)AuGe(2)In(3) was obtained as large single crystals in high yield from reactions run in liquid indium. Single crystal X-ray diffraction data show that Yb(3)AuGe(2)In(3) is an ordered variant of YbAuIn with lattice constants, a = b = 7.3153(8) Å and c = 4.4210(5) Å, and space group P(6)2m. The parent compound YbAuIn was also studied for comparison. YbAuIn crystallizes in the ZrNiAl structure type, hexagonal, P(6)2m space group with lattice parameters a = b = 7.7127(11) Å and c = 4.0294(8) Å. In Yb(3)AuGe(2)In(3), Ge substitutes for one of the two Au positions in the ternary compound Yb(3)Au(3)In(3). The structure can be described as alternating [Ge(2)In(3)] and [Yb(3)Au] slabs that stack along the c-axis. The magnetic susceptibility data follow a modified Curie-Weiss law. The effective magnetic moment μ(eff) of 0.52 μ(B)/Yb atom was deduced from the Curie constant and Curie-Weiss constant of θ(p) = -1.5 K indicating antiferromagnetic interactions in Yb(3)AuGe(2)In(3). X-ray absorption near edge spectroscopy (XANES) measurements indicate intermediate valency for Yb in both compounds. The metallic nature of both compounds was confirmed by the resistivity measurements. Specific heat data for Yb(3)AuGe(2)In(3) and YbAuIn give an electronic γ term of 31 and 84 mJ/mol·K(2), respectively, suggesting that the ternary analog is a "light" heavy fermion compound.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Yb₃AuGe₂In₃: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

et al. 2011

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“…Generally, liquid indium has been little exploited as a synthetic flux compared to Al [33][34][35][36][37][38][39][40][41] and Ga; 15,22,23,[38][39][40][42][43][44][45][46] however, interest in this powerful flux has been increasing. 16,20,[47][48][49][50] During our systematic phase analytical investigations using metal fluxes, we have now investigated the Eu-Au-Ge system using liquid indium as flux medium, to overcome the synthetic difficulties of the arc-melting technique. So far only the AlB 2 type solid solution EuAu 0.54 Ge 1.46 (P6/mmm), 51 the equiatomic germanide EuAuGe, 52,53 an ordered superstructure of the KHg 2 type (space group Imm2), and ThCr 2 Si 2 type EuAu 2 Ge 2 [54][55][56] have been reported.…”

Section: Introductionmentioning

confidence: 99%

Indium Flux-Growth of Eu₂AuGe₃: A New Germanide with an AlB₂ Superstructure

et al. 2010

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The germanide Eu(2)AuGe(3) was obtained as large single crystals in high yield from a reaction of the elements in liquid indium. At room temperature Eu(2)AuGe(3) crystallizes with the Ca(2)AgSi(3) type, space group Fmmm, an ordered variant of the AlB(2) type: a = 857.7(4), b = 1485.5(10), c = 900.2(4) pm. The gold and germanium atoms build up slightly distorted graphite-like layers which consist of Ge(6) and Au(2)Ge(4) hexagons, leading to two different hexagonal-prismatic coordination environments for the europium atoms. Magnetic susceptibility data showed Curie-Weiss law behavior above 50 K and antiferromagnetic ordering at 11 K. The experimentally measured magnetic moment indicates divalent europium. The compound exhibits a distinct magnetic anisotropy based on single crystal measurements and at 5 K it shows a metamagnetic transition at ∼10 kOe. Electrical conductivity measurements show metallic behavior. The structural transition at 130 K observed in the single crystal data was very well supported by the conductivity measurements. (151)Eu Mössbauer spectroscopic data show an isomer shift of -11.24 mm/s at 77 K, supporting the divalent character of europium. In the magnetically ordered regime one observes superposition of two signals with hyperfine fields of 26.0 (89%) and 3.5 (11%) T, respectively, indicating differently ordered domains.

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“…Among the metal fluxes, very recently, indium has been exploited for the crystal growth of quaternary compounds. [28][29][30][31][32][33][34][35][36] One of the interesting features of the metal flux synthesis method is the reduction of the melting point and vapor pressure of the starting materials, which results in the formation of new compounds. A good review on the concept and use of the metal flux technique for the formation of new compounds was done by Kanatzidis and co-workers.…”

Section: Introductionmentioning

confidence: 99%

Yb₇Ni₄InGe₁₂: a quaternary compound having mixed valent Yb atoms grown from indium flux

et al. 2015

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The new intermetallic compound Yb7Ni4InGe12 was obtained as large silver needle shaped single crystals from reactive indium flux. Single crystal X-ray diffraction suggests that Yb7Ni4InGe12 crystallizes in the Yb7Co4InGe12 structure type, and tetragonal space group P4/m and lattice constants are a = b = 10.291(2) Å and c = 4.1460(8) Å. The crystal structure of Yb7Ni4InGe12 consists of columnar units of three different types of channels filled with the Yb atoms. The crystal structure of Yb7Ni4InGe12 is closely related to Yb5Ni4Ge10. The effective magnetic moment obtained from the magnetic susceptibility measurements in the temperature range 200-300 K is 3.66μB/Yb suggests mixed/intermediate valence behavior of ytterbium atoms. X-ray absorption near edge spectroscopy (XANES) confirms that Yb7Ni4InGe12 exhibits mixed valence.

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Synthesis and crystal structures of Nd6Pt13In22, Sm6Pt12.30In22.70, and Gd6Pt12.48In22.52

Cited by 9 publications

References 17 publications

Yb₃AuGe₂In₃: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

Yb₃AuGe₂In₃: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

Indium Flux-Growth of Eu₂AuGe₃: A New Germanide with an AlB₂ Superstructure

Yb₇Ni₄InGe₁₂: a quaternary compound having mixed valent Yb atoms grown from indium flux

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Synthesis and crystal structures of Nd6Pt13In22, Sm6Pt12.30In22.70, and Gd6Pt12.48In22.52

Cited by 9 publications

References 17 publications

Yb3AuGe2In3: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

Yb3AuGe2In3: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

Indium Flux-Growth of Eu2AuGe3: A New Germanide with an AlB2 Superstructure

Yb7Ni4InGe12: a quaternary compound having mixed valent Yb atoms grown from indium flux

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Yb₃AuGe₂In₃: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

Yb₃AuGe₂In₃: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior

Indium Flux-Growth of Eu₂AuGe₃: A New Germanide with an AlB₂ Superstructure

Yb₇Ni₄InGe₁₂: a quaternary compound having mixed valent Yb atoms grown from indium flux