A new quaternary iron-rich phase stabilized by carbon: DyFe2SiC

Paccard, L.; Paccard, D.; Bertrand, Ch.

doi:10.1016/0022-5088(87)90348-1

Cited by 14 publications

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“…Twelve iron-containing DyFe SiC type compounds have been known for some time (1,2). With the presently reported manganese, rhenium, ruthenium, and osmium compounds this number has increased to 61.…”

Section: Discussionmentioning

confidence: 99%

“…The lutetium compounds with rhenium, ruthenium, and osmium were not obtained, possibly because lutetium is too small; similarly, the iron and manganese compounds with the early lanthanoids could up to now not be prepared, probably because these lanthanoids are too large to fit into the iron and manganese silicide carbide frameworks. Various aspects of the DyFe SiC type structure have been discussed earlier (1,2). In particular, it has been pointed out that it may be regarded as a filled-up (stuffed) Re B-type structure.…”

Section: Discussionmentioning

confidence: 99%

“…While searching for new permanent magnets Paccard, Paccard, and Bertrand prepared the compound DyFe SiC and reported its crystal structure, which was of a new type (1). More recently, we characterized the corresponding compounds AFe SiC (A"Y, Sm, Gd, Tb, Ho-Tm, Lu, Th, U) and refined the structure of ThFe SiC (2).…”

Section: Introductionmentioning

confidence: 99%

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Quaternary Silicide CarbidesAT2SiC (A=Rare Earth Elements and Actinoids,T=Mn, Re, Ru, Os) with DyFe2SiC-Type Structure

Hüfken

Witte

Jeitschko

1999

Journal of Solid State Chemistry

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Quaternary Silicide CarbidesAT2SiC (A=Rare Earth Elements and Actinoids,T=Mn, Re, Ru, Os) with DyFe2SiC-Type Structure

Hüfken

Witte

Jeitschko

1999

Journal of Solid State Chemistry

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“…The series /?Fe2SiC [1] and RT2 SiC with T = Mn, Re, Ru, Os [2] were found to crystallize with an orthorhombic structure first determined for DyFe2SiC [3]. A monoclinic structure, first reported for Dy2Fe2Si2C [4] was observed for the series /?2Fe2Si2C [5,6 ] and R2R&2^h C [6 ].…”

Section: Introductionmentioning

confidence: 97%

Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr₂Si₂C (R = Y, La - Nd, Sm, Gd - Ho)

Pohlkamp

Jeitschko

2001

Zeitschrift Für Naturforschung B

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Quaternary Silicide CarbidesThe title compounds were prepared by arc-melting cold-pressed pellets of the elemental components. They crystallize with a tetragonal structure already reported for CeCr:Si2C. It was refined from single-crystal X-ray data of PrCriSiiC: PMmmm, a -402.2( 1) pm, c = 535.2(1) pm, Z = 1, R = 0.012 for 252 structure factors and 10 variable parameters. Magnetic susceptibility measurements with a SQUID magnetometer indicate Pauli paramagnetism for YCr^Si^C, while CeCnSi^C shows mixed valent behavior. The carbon atoms in the structure of these compounds are isolated from each other. The silicon atoms form pairs with a Si-Si distance of 245.3 pm, somewhat greater than the single-bond distance of 235.2 pm in elemental silicon. Together with the chromium atoms, the silicon pairs and carbon atoms form a three-dimensionally infinite polyanion, which has some similarity with the polyanions found in several related tetragonal structures, e. g., the structures of ThCriSii and LuNi^I^C.

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“…YRe2SiC is a quaternary silicide carbide with orthorhombic structure, as reported by Hüfken et al [11]. This structure has DyFe2SiC (SG Cmcm) as prototype [12] and it can be described as a filled variant of the Re3B structure, where Re2Si units form a quasi-twodimensional layer with a puckered hexagonal arrangement [13]. These sheets are connected by carbon ions through Re-C-Re bridges, while the Y atoms fill available atomic positions in between the layers.…”

Section: Introductionmentioning

confidence: 78%

Possible multiband superconductivity in the quaternary carbide YRe₂SiC

Faria

Ferreira

Corrêa

et al. 2021

Supercond. Sci. Technol.

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We report for the first time the occurrence of superconductivity in the quaternary silicide carbide YRe2SiC with Tc ≈ 5.9 K. The emergence of superconductivity was confirmed by means of magnetic susceptibility, electrical resistivity, and heat capacity measurements. The presence of a well developed heat capacity feature at Tc confirms that superconductivity is a bulk phenomenon, while a second feature in the heat capacity near 0.5 Tc combined with the unusual temperature dependence of the upper critical field Hc2(T) indicate the presence of a multiband superconducting state. Additionally, the linear dependence of the lower critical field Hc1 with temperature resemble the behavior found in compounds with unconventional pairing symmetry. Band structure calculations reveal YRe2SiC could harbor a non-trivial topological state and that the low-energy states occupy multiple disconnected sheets at the Fermi surface, with different degrees of hybridization, nesting, and screening effects, therefore making unconventional multiband superconductivity plausible.

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A new quaternary iron-rich phase stabilized by carbon: DyFe2SiC

Cited by 14 publications

References 0 publications

Quaternary Silicide CarbidesAT2SiC (A=Rare Earth Elements and Actinoids,T=Mn, Re, Ru, Os) with DyFe2SiC-Type Structure

Quaternary Silicide CarbidesAT2SiC (A=Rare Earth Elements and Actinoids,T=Mn, Re, Ru, Os) with DyFe2SiC-Type Structure

Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr₂Si₂C (R = Y, La - Nd, Sm, Gd - Ho)

Possible multiband superconductivity in the quaternary carbide YRe₂SiC

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A new quaternary iron-rich phase stabilized by carbon: DyFe2SiC

Cited by 14 publications

References 0 publications

Quaternary Silicide CarbidesAT2SiC (A=Rare Earth Elements and Actinoids,T=Mn, Re, Ru, Os) with DyFe2SiC-Type Structure

Quaternary Silicide CarbidesAT2SiC (A=Rare Earth Elements and Actinoids,T=Mn, Re, Ru, Os) with DyFe2SiC-Type Structure

Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr2Si2C (R = Y, La - Nd, Sm, Gd - Ho)

Possible multiband superconductivity in the quaternary carbide YRe2SiC

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Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr₂Si₂C (R = Y, La - Nd, Sm, Gd - Ho)

Possible multiband superconductivity in the quaternary carbide YRe₂SiC