Magnetic and related properties of a novel compound Ce 3 Co 2 Sn 7

Chajewski, G.; Pasturel, Mathieu; Pikul, Adam

doi:10.1016/j.jallcom.2017.02.053

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Some of them are negative. This is not physically consistent with a system entirely ruled just by Kondo physics, and implies that T * K is not directly equal to the Kondo temperature T K , but also reflects the existence of additional interactions [14,20,66]. Assuming that the magnetic moment gJH* is more or less equal to the competing actions of thermal fluctuations, Kondo and FM interactions gJμ 0 H * ≈ k B T + k B T K − k B T C explains both the temperature dependence and the negative T * K values.…”

Section: Magnetotransportmentioning

confidence: 89%

Mo4Ce4Al7C3 : A nanolamellar ferromagnetic Kondo lattice

et al. 2020

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Herein we show that Mo 4 Ce 4 Al 7 C 3 , a recently discovered nanolamellar compound displaying mixed valence, combines Kondo lattice behavior with ferromagnetism. A sizeable magnetization is carried by 3p states of Al as evidenced by a strong x-ray magnetic circular dichroism signal at the K edge of aluminum, whereas no detectable signal was observed at the K edge of carbon and L 2,3 edges of molybdenum. These results point out that the ferromagnetic behavior originates in the Ce atoms with 4 f 1 electronic configuration lying within the Al planes. The evolution with pressure of the mixed valence of Ce atoms in the Mo-C planes determined via Ce L 3 x-ray-absorption spectra along with the magnetoresistance measurements across the ferromagnetic transition unambiguously reveal a Kondo behavior. Angle-resolved photoemission spectroscopy and density functional theory confirm a certain degree of Ce 4 f electron delocalization. More generally, conduction electrons are not restricted to lie in the MoC planes but are also delocalized in the Al planes.

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Section: Magnetotransportmentioning

confidence: 89%

Mo4Ce4Al7C3 : A nanolamellar ferromagnetic Kondo lattice

et al. 2020

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“…11 However, relatively few Co analogues have been reported. More recently, polycrystalline Ce 3 Co 2 Sn 7 was shown to behave similarly to the Ni compound, where the Ce located at the 4i site has a well-localized magnetic moment and increasing magnetic fields lead to lowering of the antiferromagnetic ordering temperature 12 along with a second Ce site being nonmagnetic or valence fluctuating. 13 In U 3 Co 2 Ge 7 , two magnetic transitions were observed near 40 and 20 K that have been attributed to a ferromagnetic state and a spin reorientation, respectively, and the field-dependent magnetization shows a stepwise increase in the magnetization below 2 K. To study the structural stability of Co containing compounds adopting the La 3 Co 2 Sn 7 structure type, we present the crystal growth, structural characterization, and magnetic properties of Ln 3 -Co 2+x Ge 8−y Sn y (Ln = Pr, Nd, Sm).…”

Section: Introductionmentioning

confidence: 99%

Crystal Growth and Magnetic Properties of Pr₃Co_2+xGe₇ and the Sn-Stabilized Ln₃Co_2+xGe_7–ySn_y (Ln = Pr, Nd, Sm)

Khan

McCandless

Benavides

et al. 2018

Crystal Growth & Design

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Single crystals of the ternary Pr3Co2+x Ge7 and Ln3Co2+x Ge7–y Sn y (Ln = Pr, Nd, Sm) adopting a disordered version of the La3Co2Sn7 structure type have been prepared via flux-growth methods and characterized by single crystal X-ray diffraction. The structure consists of two lanthanide crystallographic sites with one occupying a cuboctahedral coordination environment and a second in a trigonal prismatic environment. The structure can also be described as an intergrowth of AuCu3 and CeNiSi2 structure types, and the stability of the germanide analogues requires Sn incorporation and Co site preferences. Magnetic properties of the Pr3Co2+x Ge7–y Sn y series are highlighted with the Sn-substituted Pr3Co2.514(5)Ge6.66(7)Sn0.360(2) orders magnetically near 5.8 K, while the germanide Pr3Co2.3376(5)Ge7.056(7) exhibits magnetic transitions at 5.3 and 9.3 K, arising from the magnetic sublattices with field-dependent magnetization revealing three metamagnetic transitions at 0.46, 0.80, and 2.1 T.

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Suppression of Kondo spin-fluctuations as the origin of metamagnetic transition in the new ternary intermetallic Ce3Pd2Ge7

Semeno

Krasnorussky

Bogach

et al. 2022

Journal of Alloys and Compounds

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Magnetic and related properties of a novel compound Ce 3 Co 2 Sn 7

Cited by 3 publications

References 25 publications

Mo4Ce4Al7C3 : A nanolamellar ferromagnetic Kondo lattice

Mo4Ce4Al7C3 : A nanolamellar ferromagnetic Kondo lattice

Crystal Growth and Magnetic Properties of Pr₃Co_2+xGe₇ and the Sn-Stabilized Ln₃Co_2+xGe_7–ySn_y (Ln = Pr, Nd, Sm)

Suppression of Kondo spin-fluctuations as the origin of metamagnetic transition in the new ternary intermetallic Ce3Pd2Ge7

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Magnetic and related properties of a novel compound Ce 3 Co 2 Sn 7

Cited by 3 publications

References 25 publications

Mo4Ce4Al7C3 : A nanolamellar ferromagnetic Kondo lattice

Mo4Ce4Al7C3 : A nanolamellar ferromagnetic Kondo lattice

Crystal Growth and Magnetic Properties of Pr3Co2+xGe7 and the Sn-Stabilized Ln3Co2+xGe7–ySny (Ln = Pr, Nd, Sm)

Suppression of Kondo spin-fluctuations as the origin of metamagnetic transition in the new ternary intermetallic Ce3Pd2Ge7

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Crystal Growth and Magnetic Properties of Pr₃Co_2+xGe₇ and the Sn-Stabilized Ln₃Co_2+xGe_7–ySn_y (Ln = Pr, Nd, Sm)