Rare earth–transition metal–indides

Kalychak, Yaroslav M.; Zaremba, Vasyl’ I.; Pöttgen, Rainer; Lukachuk, Mar’yana; Hoffmann, Rolf‐Dieter

doi:10.1016/s0168-1273(04)34001-8

Cited by 81 publications

(44 citation statements)

References 285 publications

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“…The Tb 4þx Ni 2 Mg 3Àx phase could be assigned to the series of general formula R 0 2mþn X 2n R 00 2m firstly described by Kuz'ma [25], which is composed of two kinds of constituent blocks: AlB 2 -type (whose number is indicated by n in the formula) and CsCl-type cubes (m in the formula). A branch of this series, containing beside the Tb 4þx Ni 2 Mg 3Àx phase also the recently published Nd 4 Co 2 Mg 3 [26] and Nd 11 Pd 4 In 9 [27] intermetallic compounds together with Lu 5 Ni 2 In 4 [28] and Mo 2 FeB 2 [14] structure types, can be individuated as a planar intergrowth set because the two-dimensional segments of the constituent fragments are stacked within a stacking plane (Fig. 5b).…”

Section: Crystal Structure Peculiaritiesmentioning

confidence: 95%

The novel intermetallic phases TbNiMg and Tb4+xNi2Mg3−x (x = 0.2): Synthesis, crystal structure and peculiarities

et al. 2010

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Section: Crystal Structure Peculiaritiesmentioning

confidence: 95%

The novel intermetallic phases TbNiMg and Tb4+xNi2Mg3−x (x = 0.2): Synthesis, crystal structure and peculiarities

et al. 2010

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“…Cеред структур тернарних сполук у системах R−Cu−X, де  Х елемент ІІІ А групи періодичної системи, можна знайти ряд споріднених структур з подібним координаційним оточенням навколо атома з найменшою електронегативністю (атоми РЗМ) [11]. Пентагональні призми, зрощені боковими гранями, можна виділити у структурі тернарного індиду Nd 2 Cu 2 In (СТ Mo 2 FeB 2 , КЧ=10) [4] (рис. 4), для інтерметалідів еквіатомного складу RCuX (X − Al,In) зі структурою типу ZrNiAl навколо атомів R-компонента формуються пентагональні призми з одним додатковим атомом навпроти бокової грані (КЧ=11).…”

Section: таблицяunclassified

“…4), для інтерметалідів еквіатомного складу RCuX (X − Al,In) зі структурою типу ZrNiAl навколо атомів R-компонента формуються пентагональні призми з одним додатковим атомом навпроти бокової грані (КЧ=11). НКО атомів R-компонента у структурах сполук RCuIn 4 (CT YNiAl 4 , КЧ=15) [4] відображає правильні пентагональні призми зі всіма центрованими боковими гранями.…”

Section: таблицяunclassified

Сrystal structure of neodymium and copperternary monoaluminide

Fedyna¹,

Fedorchuk²,

Stelmakhovych³

et al. 2018

Visnyk Lviv Univ. Ser. Chem.

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Рентгенівським дифракційним методом порошку (Huber G670 Imaging Plate Guinier camera, CuK 1 -випромінювання) досліджено кристалічну структуру тернарної сполуки NdCuAl (структурний тип ZrNiAl, символ Пірсона hP9, просторова група P-62m, a = 7,16752(4), c = 4,12089(4) Å, V = 183,341(1) Å 3 , R І = 0,065, R Р = 0,088). Розглянуто особливості кристалічних структур сполук еквіатомного складу в системах R−Cu−X (X -елемент ІІІ А групи періодичної системи хімічних елементів) та інтерметалідів на розрізі 33,3 ат. % в системі Nd−Cu−Al при 770 K. Проаналізовано взаємозв'язок структур дослідженої та споріднених сполук згідно з координацією найменш електронегативного атома.Ключові слова: Неодим, Купрум, Алюміній, рентгенівський метод порошку, тернарна сполука, кристалічна структура.

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“…The best composition has been found to be CePd [2][3] In 35 . From the higher Pd content, CePd 3 In 6 (LaNi 3 In 6 [22]) was formed covering the surface of Ce 2 PdIn 8 ( Supplementary Fig. 5).…”

Section: Crystal Growth Of Ce 2 Pdinmentioning

confidence: 99%

Solution growth of Ce–Pd–In single crystals: Characterization of the heavy-fermion superconductor Ce2PdIn8

et al. 2010

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Solution growth of single crystals of the recently reported new compound Ce 2 PdIn 8 was investigated. When growing from a stoichiometry in a range 2:1:20 -2:1:35, single crystals of CeIn 3 covered by a thin (~50 μm) single-crystalline layer of Ce 2 PdIn 8 were mostly obtained. Using palladium richer compositions the thickness of the Ce 2 PdIn 8 layers were increased, which allowed mechanical extraction of single-phase slabs of the desired compound suitable for a thorough study of magnetism and superconductivity. In some solution growth products also CePd 3 In 6 (LaNi 3 In 6 -type of structure) and traces of phases with the stoichiometry CePd 2 In 7 , Ce 1.5 Pd 1.5 In 7 (determined only by EDX) have been identified. Magnetic measurements of the Ce 2 PdIn 8 single crystals reveal paramagnetic behaviour of the Ce 3+ ions with significant magnetocrystalline anisotropy. Above 70 K the magnetic susceptibility follows the Curie-Weiss law with considerably different values of the paramagnetic Curie temperature, for the magnetic field applied along the a-(-90 K) and c-(-50 K) axis. Below the reported critical temperature for superconductivity T c (0.69 K) the electrical resistivity drops to zero. Comparative measurements of the electrical resistivity, heat capacity and AC susceptibility of several crystals reveal that the superconducting transition is strongly sample-dependent. IntroductionIn some Ce-based compounds, the interaction of the Ce ions with the conduction electrons often leads to a large enhancement of the effective electron mass. These socalled heavy-fermion (HF) compounds exhibit attractive electronic properties, such as strongly enhanced paramagnetism, non-Fermi liquid behaviour, interplay between magnetism and superconductivity (SC), etc. During the last decade, the attention of many researchers has been focused on the series of HF materials of the general chemical formula Ce m T n In 3m+2n where m, n = 1 or 2 and T = Co, Rh, Ir. These compounds crystallize in the Ho m Co n Ga 3m+2n -type tetragonal structures with the space group P4/mmm. These structures are built by n layers of distorted cuboctahedra [CeIn 3 ] and one monolayer of rectangular parallelepipeds [TIn 2 ] stacked sequentially in the [001] direction [1] making the structure to be quasi-2D. The main building block of these compounds, the cubic CeIn 3 , is a heavy-fermion antiferromagnet (AF) with a Néel temperature T N = 10.2 K [2] and becomes superconducting (SC) under pressure [3]. The whole Ce m T n In 3m+2n series is characterized by interplay between magnetism and unconventional superconductivity, which makes these compounds suitable for thorough studies of varieties of the two cooperative phenomena in strongly correlated electron systems. The quasi-2D R m T n In 3m+2n crystal structure provides investigation of the effect of varying dimensionality on magnetism and unconventional superconductivity because

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Rare earth–transition metal–indides

Cited by 81 publications

References 285 publications

The novel intermetallic phases TbNiMg and Tb4+xNi2Mg3−x (x = 0.2): Synthesis, crystal structure and peculiarities

The novel intermetallic phases TbNiMg and Tb4+xNi2Mg3−x (x = 0.2): Synthesis, crystal structure and peculiarities

Сrystal structure of neodymium and copperternary monoaluminide

Solution growth of Ce–Pd–In single crystals: Characterization of the heavy-fermion superconductor Ce2PdIn8

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