Effects of Cr Substitution on Negative Thermal Expansion and Magnetic Properties of Antiperovskite Ga1−xCrxN0.83Mn3 Compounds

Guo, Xinzhuan; Tong, P.; Lin, Jiazao; Yang, Cheng; Zhang, Kui; Lin, Shuai; Song, Wenhai; Sun, Yan

doi:10.3389/fchem.2018.00075

Cited by 9 publications

(5 citation statements)

References 45 publications

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“…Antiperovskite compounds A 3 BC (A = Fe, Mn; B = Ga, Sn, Cu, Zr, Fe, Co; C = C, N, H) are well-known (Takenaka and Takagi, 2005; Iikubo et al, 2008; Sun et al, 2010a,b, 2012; Song et al, 2011; Wang et al, 2012; Lin et al, 2015; Shi et al, 2016, 2018; Guo et al, 2018) for the rich characteristics of NTE and ZTE, as well as the baromagnetic, and barocaloric properties, though the comprehensive performance of MCE is not as good as the conventional material Gd around room temperature. This material has a very large family, which shows rich magnetic and lattice structure depending on compositions and atomic occupations.…”

Section: Rco2 Compoundsmentioning

confidence: 99%

Negative Thermal Expansion in the Materials With Giant Magnetocaloric Effect

Shen

Hao

et al. 2018

Front. Chem.

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Negative thermal expansion (NTE) behaviors in the materials with giant magnetocaloric effects (MCE) have been reviewed. Attentions are mainly focused on the hexagonal Ni2In-type MM'X compounds. Other MCE materials, such as La(Fe,Si)13, RCo2, and antiperovskite compounds are also simply introduced. The novel MCE and phase-transition-type NTE materials have similar physics origin though the applications are distinct. Spin-lattice coupling plays a key role for the both effect of NTE and giant MCE. Most of the giant MCE materials show abnormal lattice expansion owing to magnetic interactions, which provides a natural platform for exploring NTE materials. We anticipate that the present review can help finding more ways to regulate phase transition and dig novel NTE materials.

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Section: Rco2 Compoundsmentioning

confidence: 99%

Negative Thermal Expansion in the Materials With Giant Magnetocaloric Effect

Shen

Hao

et al. 2018

Front. Chem.

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“…The peak position and intensity ratio of the sample after the annealing process were similar to those of the antiperovskite manganese nitride compounds produced via the sintering method. 9,19,30,31) This result indicates that the 400 °C annealing process can produce a sputtered manganese nitride thin film with an antiperovskite structure. It also shows that we can fabricate the micro/nanoscale manganese nitride resistor having an antiperovskite structure using a CMOScompatible process.…”

mentioning

confidence: 84%

High-thermal-stability resistor formed from manganese nitride compound that exhibits the saturation state of the mean free path

Kino¹,

Fukushima²,

Tanaka³

2021

Appl. Phys. Express

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Antiperovskite manganese nitride compounds possess the saturation characteristics of the mean free path at an approximate room temperature. Therefore, such compounds show a flat resistance–temperature curve at an approximate room temperature. In this paper, we propose a manganese nitride resistor for high-thermal-stability systems. We fabricated and evaluated the micro/nanoscale manganese nitride compound resistors using the complementary metal-oxide-semiconductor-compatible process. The thermal coefficient of the fabricated manganese nitride compound resistor was as low as that of other near-zero temperature-coefficient of resistivity materials. These results indicate that manganese nitride compounds can achieve higher thermal stability.

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“…The FC curves had the highest peak at 267 K. As the temperature continues to decrease, a ferromagnetic-antiferromagnetic transition occurs, and a G-type antiferromagnetic phase is generated (Lindberg et al, 2006). The separation of the ZFC and FC curves at low temperature indicates that spin-glass state-like components may be present (Motohashi et al, 2005;Sutjahja et al, 2015;Guo et al, 2018;Srivastava et al, 2020). For x = 0.2, the maximum magnetisation of the ZFC curve was found at 4 K, attributed to the chemical compressive stress induced by lattice distortion due to Cu doping.…”

Section: -Xmentioning

confidence: 99%

Ordered phase transformation and Cu doping effects in room-temperature ferromagnetic Sr3YCo4O10.5+δ

Ren

Zhang

et al. 2022

Front. Chem.

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Sr3YCo4O10.5+δ (314-SYCO), with an unusual ordered structure and a high Curie temperature (Tc ≈ 335 K), is attracting increasing attention. Herein, to improve the electrical performance of 314-SYCO, Cu-doped Sr3YCo4−xCuxO10.5+δ (x = 0–0.8) ceramics were prepared using a solid-state reaction method. Systematic research was conducted on both the ordered phase transformation and the effects of Cu doping on the microstructure, electrical transport characteristics, and magnetic properties. For x = 0–0.4, the (103) and (215) planes were observed and combined with Rietveld refinement results for the X-ray diffraction data, confirming the formation of ordered tetragonal Sr3YCo4−xCuxO10.5+δ. This phase was formed with a mass gain of ∼0.8% and heat released at ∼1,042°C. With increasing Cu content, the concentration of hole carriers also increased, leading to a substantial reduction in electrical resistivity. The electrical resistivity decreased by 92–99% at 300 K. The polycrystalline materials have semiconducting behaviour with a three-dimensional Mott variable-range hopping mechanism. For the magnetic properties, a Hopkinson peak was observed at 319 K, and the Tc was approximately 321 K for x = 0. The magnetisation and Tc decreased with increasing Cu content, and a G-type antiferromagnetic-to-ferromagnetic phase transition occurred due to the spin state change for some Co3+ ions from high/intermediate spin to low/intermediate spin. These results lay the groundwork for refinement of the sintering procedure and doping parameters to enhance the performance of 314-SYCO in the context of current applications such as microwave absorbers and solid oxide fuel cell cathodes.

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Effects of Cr Substitution on Negative Thermal Expansion and Magnetic Properties of Antiperovskite Ga1−xCrxN0.83Mn3 Compounds

Cited by 9 publications

References 45 publications

Negative Thermal Expansion in the Materials With Giant Magnetocaloric Effect

Negative Thermal Expansion in the Materials With Giant Magnetocaloric Effect

High-thermal-stability resistor formed from manganese nitride compound that exhibits the saturation state of the mean free path

Ordered phase transformation and Cu doping effects in room-temperature ferromagnetic Sr3YCo4O10.5+δ

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