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新型立方HgCrO钙钛矿的综合分析:用于自旋电子学应用的第一性原理、结构、热力学和磁性性质研究

Comprehensive analysis of novel cubic HgCrO perovskite: a first principles, structural, thermodynamic, and magnetic properties study for spintronic applications.

作者信息

Khan Junaid, Al-Anazy Murefah Mana, Yousef El Sayed, D Datta, Sharma Ramesh, Moayad A J A

机构信息

Department of Physics Khushal Khan Khattak University Karak Pakistan.

Department of Physics Kohat University of Science and Technology Kohat Pakistan.

出版信息

RSC Adv. 2023 Nov 16;13(48):33603-33612. doi: 10.1039/d3ra06392e.

Abstract

The main goal of modern manufacturing is to create products that are affordable, eco-friendly, and energy-efficient. With a focus on HgCrO, this study sought to discover molecules that meet these requirements. The structural, electrical, thermodynamic, and transport properties of the material were investigated using Wien2K, a full-potential, linearized augmented plane wave program (FP LAPW). Utilizing the generalised gradient approximation (GGA) and lattice constants that have previously produced excellent theoretical and practical findings, structural optimization was carried out. Calculated HgCrO magnetic characteristics show that the Cr and Hg atoms are the main contributors to magnetism. Over a temperature range of 0-1200 K and a pressure range of 0-196 GPa, thermodynamic characteristics were evaluated. The thermoelectric properties of HgCrO were evaluated using the Boltzmann transport method provided by the BoltzTrap program. This analysis revealed that at room temperature, the figures of merit () values for HgCrO were nearly equal to one. A value close to one indicates that a material has excellent thermoelectric properties and can efficiently convert heat into electricity or . This investigation highlights the promising thermoelectric capabilities of HgCrO, which could contribute to more sustainable and energy-efficient technologies in the future.

摘要

现代制造业的主要目标是生产出价格亲民、环保且节能的产品。以HgCrO为研究重点,本研究旨在发现符合这些要求的分子。使用全势线性缀加平面波程序Wien2K(FP LAPW)研究了该材料的结构、电学、热力学和输运性质。利用广义梯度近似(GGA)和先前已产生出色理论与实际结果的晶格常数进行了结构优化。计算得出的HgCrO磁性特征表明,Cr和Hg原子是磁性的主要贡献者。在0至1200 K的温度范围和0至196 GPa的压力范围内评估了热力学特性。使用BoltzTrap程序提供的玻尔兹曼输运方法评估了HgCrO的热电性质。该分析表明,在室温下,HgCrO的品质因数()值几乎等于1。接近1的值表明一种材料具有出色的热电性质,能够有效地将热量转化为电能或 。这项研究突出了HgCrO具有的有前景的热电能力,这可能在未来有助于实现更可持续和节能的技术。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7b7c/10653202/00831b6317e9/d3ra06392e-f1.jpg

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