Exploring Ru 4d oxide Ba2XRuO6 (X = Y, Lu, Sc) for spintronics: pressure-dependent first-principles study.

IF 5.3 3区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Frontiers in Chemistry Pub Date : 2026-09-09 eCollection Date: 2026-01-01 DOI:10.3389/fchem.2026.1814481
Razia Abdul Majid Qureshi, Altaf Ur Rahman, Muhammad Sajjad, N A Noor, Sohail Mumtaz, A Ibrahim, A Laref
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Abstract

Recent advances in the precise control of electromagnetic and transport properties, and the miniaturization of electronic devices, have introduced new prospects in the development of practical quantum computing. Double perovskites have gained particular attention in spintronic applications due to their structural stability, non-toxicity, and inherent spin polarization. In this study, we explore the effect of Ru 4d-electrons on the magnetic properties of Ba2XRuO6 (X = Y, Lu, Sc) using first-principles calculations within the WIEN2k framework. The calculated lattice constants for Ba2XRuO6 (X = Y, Lu, Sc) using PBEsol-GGA are comparable to reported experimental values. The calculated formation energies (ΔHf) of -2.88, -2.61, and -2.43 eV (for X = Y, Lu, and Sc, respectively) confirm thermodynamic stability. Band structure and density of states analyses reveal that all compounds are ferromagnetic semiconductors. All compounds exhibit ferromagnetic semiconducting behavior, and the bandgap increases with pressure up to 4 GPa. The observed magnetism arises from hybridization effects, crystal-field interactions, and exchange coupling. Optical analysis shows strong visible-light absorption, and transport parameters evaluated from 300 to 800 K highlight notable thermoelectric potential. These findings establish Ba2XRuO6 (X = Y, Lu, Sc) as promising candidates for spintronic and thermoelectric applications.

探索ru4d氧化物Ba2XRuO6 (X = Y, Lu, Sc)在自旋电子学中的应用:压力相关第一原理研究。
电磁和输运性质的精确控制以及电子设备的小型化方面的最新进展,为实用量子计算的发展带来了新的前景。双钙钛矿由于其结构稳定、无毒性和固有的自旋极化而在自旋电子应用中受到了特别的关注。在本研究中,我们利用WIEN2k框架下的第一性原理计算,探讨了Ru 4d电子对Ba2XRuO6 (X = Y, Lu, Sc)磁性能的影响。用PBEsol-GGA计算的Ba2XRuO6 (X = Y, Lu, Sc)的晶格常数与实验值相当。计算得到的地层能量(ΔHf)分别为-2.88、-2.61和-2.43 eV(分别为X = Y、Lu和Sc),证实了热力学稳定性。能带结构和态密度分析表明,所有化合物都是铁磁性半导体。所有化合物都表现出铁磁半导体行为,并且带隙随着压力的增加而增加,直至4 GPa。观察到的磁性来自于杂化效应、晶体场相互作用和交换耦合。光学分析表明,可见光吸收较强,在300 ~ 800 K范围内的输运参数突出了显著的热电势。这些发现确定了Ba2XRuO6 (X = Y, Lu, Sc)是自旋电子和热电应用的有希望的候选者。
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来源期刊
Frontiers in Chemistry
Frontiers in Chemistry Chemistry-General Chemistry
CiteScore
8.50
自引率
3.60%
发文量
1540
审稿时长
12 weeks
期刊介绍: Frontiers in Chemistry is a high visiblity and quality journal, publishing rigorously peer-reviewed research across the chemical sciences. Field Chief Editor Steve Suib at the University of Connecticut is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to academics, industry leaders and the public worldwide. Chemistry is a branch of science that is linked to all other main fields of research. The omnipresence of Chemistry is apparent in our everyday lives from the electronic devices that we all use to communicate, to foods we eat, to our health and well-being, to the different forms of energy that we use. While there are many subtopics and specialties of Chemistry, the fundamental link in all these areas is how atoms, ions, and molecules come together and come apart in what some have come to call the “dance of life”. All specialty sections of Frontiers in Chemistry are open-access with the goal of publishing outstanding research publications, review articles, commentaries, and ideas about various aspects of Chemistry. The past forms of publication often have specific subdisciplines, most commonly of analytical, inorganic, organic and physical chemistries, but these days those lines and boxes are quite blurry and the silos of those disciplines appear to be eroding. Chemistry is important to both fundamental and applied areas of research and manufacturing, and indeed the outlines of academic versus industrial research are also often artificial. Collaborative research across all specialty areas of Chemistry is highly encouraged and supported as we move forward. These are exciting times and the field of Chemistry is an important and significant contributor to our collective knowledge.
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