Crystal structure and magnetic properties of some compounds with GdNi2Ga3In type structure

IF 0.9 4区材料科学 Q3 CRYSTALLOGRAPHY

Zeitschrift Fur Kristallographie-Crystalline Materials Pub Date : 2022-05-26 DOI:10.1515/zkri-2022-0024

M. Horiacha, G. Nychyporuk, R. Pöttgen, D. Kaczorowski, V. Zaremba

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引用次数: 0

Abstract

Abstract The GdNi2Ga3In type crystal structures (Pnma) of the quaternary intermetallic compounds TbNi2Ga3.03(1)In0.97(1) (a = 2.41554(2), b = 0.41614(4), c = 0.92220(10) nm, wR2 = 0.0512, 2006 F2 values, 90 parameters) and HoNi2Ga3.03(2)In0.97(2) (a = 2.41822(7), b = 0.41400(15), c = 0.9199(3) nm, wR2 = 0.0588, 1980 F2 values, 89 parameters) were refined from the single crystal X-ray diffraction data. Single crystals were obtained by high-frequency annealing of the samples in sealed tantalum ampoules. The compounds with RE = Y, Dy and Ho are isotypic and were characterized by powder X-ray diffraction. The magnetic behaviour of the compounds RENi2Ga3In (RE = Y, Dy, Ho) was characterized by means of magnetization and dc magnetic susceptibility measurements, carried out in the temperature range 1.72–400 K in external magnetic fields up to 5 T. YNi2Ga3In was found to be a Pauli paramagnet with a molar magnetic susceptibility of about 4⋅10−5 emu mol−1 at room temperature. DyNi2Ga3In and HoNi2Ga3In are Curie-Weiss paramagnets which order antiferromagnetically below TN = 10.5 K (DyNi2Ga3In) and 4.4 K (HoNi2Ga3In).

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GdNi2Ga3In型化合物的晶体结构和磁性能

摘要四元金属间化合物TbNi2Ga3.03（1）In0.97，89个参数）。通过在密封的钽安瓿中对样品进行高频退火获得单晶。RE=Y、Dy和Ho为同型化合物，用粉末X射线衍射对其进行了表征。化合物RENi2Ga3In（RE=Y，Dy，Ho）的磁行为通过在1.72–400 K的温度范围内，在高达5 T的外部磁场中进行的磁化和直流磁化率测量来表征。YNi2Ga3In被发现是泡利顺磁体，在室温下的摩尔磁化率约为4∙10−5 emu mol−1。DyNi2Ga3In和HoNi2Ga3In是居里-魏斯顺磁体，它们在TN=10.5K（DyNi2Ga3In）和4.4K（HoNi2Ga3 In）以下具有反铁磁性。

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来源期刊

Zeitschrift Fur Kristallographie-Crystalline Materials CRYSTALLOGRAPHY-

CiteScore

2.00

自引率

16.70%

发文量

期刊介绍： Zeitschrift für Kristallographie – Crystalline Materials was founded in 1877 by Paul von Groth and is today one of the world’s oldest scientific journals. It offers a place for researchers to present results of their theoretical experimental crystallographic studies. The journal presents significant results on structures and on properties of organic/inorganic substances with crystalline character, periodically ordered, modulated or quasicrystalline on static and dynamic phenomena applying the various methods of diffraction, spectroscopy and microscopy.