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The electronic structure and the chemical state in Am binary oxides and Am-doped UO$_2$ were studied by means of x-ray absorption spectroscopy at shallow Am core ($4d$ and $5d$) edges. In particular, the Am $5f$ states were probed and the…

化学物理 · 物理学 2023-03-17 S. M. Butorin , D. K. Shuh

The elastic, thermodynamic, and electronic properties of fluorite RuO_2 under high pressure are investigated by plane-wave pseudopotential density functional theory. The optimized lattice parameters, elastic constants, bulk modulus, and…

材料科学 · 物理学 2017-08-23 Z. J. Yang , A. M. Guo , Y. D. Guo , J. Li , Z. Wang , Q. Liu , R. F. Linghu , X. D. Yang

We have performed ab-initio calculations using plane-wave ultraviolet pseudopotential technique based on the density-functional theory (DFT) to study the structural, mechanical, electronic, optical and thermodynamic properties of…

材料科学 · 物理学 2017-09-26 Md. Atikur Rahman , Md. Zahidur Rahaman , Md. Abdur Razzaque Sarker

We perform a first-principles computational tensile test on PuO$_{2}$ based on density-functional theory within local density approximation (LDA)+\emph{U} formalism to investigate its structural, mechanical, magnetic, and intrinsic bonding…

材料科学 · 物理学 2015-05-20 Bao-Tian Wang , Ping Zhang

We investigate the electronic structure of americium (Am) across its four experimentally confirmed high-pressure phases Am-I (P63/mmc), Am-II (Fm-3m), Am-III (Fddd), and Am-IV (Pnma) up to 100 GPa, using density functional theory combined…

强关联电子 · 物理学 2026-04-15 Haiyan Lu

Td-WTe2 is a topological Weyl semimetal. WTe2 in the orthorhombic structure is stable at room temperature. Elastic, electronic, bonding, and optoelectronic properties of WTe2 have been investigated in detail in this work using the density…

材料科学 · 物理学 2020-12-01 B. Rahman Rano , Ishtiaque M. Syed , S. H. Naqib

In the present study we have investigated the structural properties, electronic band dispersion, elastic constants, acoustic behavior, phonon spectrum, optical properties, and a number of thermophysical parameters of binary topological…

材料科学 · 物理学 2022-01-04 M. I. Naher , S. H. Naqib

In this research, we examine the electronic, magnetic, and lattice properties of the Fe$_4$(P$_2$O$_7$)$_3$ compound using the first principles calculations based on the density functional theory. The crystal lattice has a monoclinic…

材料科学 · 物理学 2025-03-20 Svitlana Pastukh , Pawel T. Jochym , Jan Lazewski , Dominik Legut , Przemyslaw Piekarz

Using density functional theory (DFT) calculations, we have systematically investigated the thermodynamic properties and structural stabilities of thorium dioxide (ThO$_2$). Based on the calculated phonon dispersion curves, we calculate the…

材料科学 · 物理学 2012-05-17 Yong Lu , Yu Yang , Ping Zhang

We report a comparative study of the dynamics of Cu2O, Ag2O and Au2O (i.e. M2O with M = Au, Ag and Cu) using first principle calculations based on the density functional theory. Here for the first time we show that the nature of chemical…

材料科学 · 物理学 2015-06-17 M. K. Gupta , R. Mittal , S. L. Chaplot , S. Rols

The structural, magnetic, vibrational and electronic properties of single layer aluminum oxide (AlO2) are investigated by performing state-of-the-art first-principles calculations. Total energy optimization and phonon calculations reveal…

材料科学 · 物理学 2022-02-10 A. Kutay Ozyurt , Deniz Molavali , Hasan Sahin

The topological Weyl semimetal MoTe2, in the orthorhombic phase, is an important system both from the point of view of fundamental physics and potential applications. In this study we have investigated the elastic, electronic, bonding and…

材料科学 · 物理学 2020-03-03 B. Rahman Rano , Ishtiaque M. Syed , S. H. Naqib

DFT and AIMD are used to investigate the structural, stability, electronic, thermal, and optical properties of the quasi-2D C2N2O structure. The structure exhibits thermal and energy stability, signifying robustness under ambient…

材料科学 · 物理学 2026-04-30 Hemn. G. H , Nzar. R. Abdullah , Vidar Gudmundsson

The structural, electronic, mechanic, vibrational and thermodynamic properties of Ti2SiB which is a hypothetical MAX phase compound, have been investigated using density functional theory calculations. The structural optimization of Ti2SiB…

材料科学 · 物理学 2018-05-15 Aysenur Gencer , Gokhan Surucu

Using density functional theory (DFT), the structural, mechanical, electronic, thermal, and optical properties of Hf2AB (A = Pb, Bi) borides were studied, considering the pressure effect up to 50 GPa. The lattice constants were found to be…

材料科学 · 物理学 2022-12-20 M. S. Hossain , N. Jahan , M. M. Hossain , M. M. Uddin , M. A. Ali

In this work using the density functional theory (DFT), we have studied the structural, electronic and magnetic properties of uranium dioxide with antiferromagnetic 1k-, 2k-, and 3k-order structures. Ordinary approximations in DFT, such as…

材料科学 · 物理学 2020-08-25 Samira Sheykhi , Mahmoud Payami

The electronic ground states of the actinide dioxides AnO2 (with An=U, Np, Pu, Am, and Cm) are investigated employing first-principles calculations within the framework of the local density approximation +U (LDA+U) approach, implemented in…

强关联电子 · 物理学 2014-10-22 Michi-To Suzuki , Nicola Magnani , Peter M. Oppeneer

Understanding electronic properties of sub-stoichiometric phases of titanium oxide such as Magn\'eli phase Ti4O7 is crucial in designing and modeling resistive switching devices. Here we present our study on Magn\'eli phase Ti4O7 together…

材料科学 · 物理学 2015-06-22 Xiaoliang Zhong , Ivan Rungger , Peter Zapol , Olle Heinonen

Geometrically frustrated magnetic semiconductor $\textrm{CuMnO}_{2}$ has potential applications as photo-catalyst, in photochemical cells and multi-ferroic devices. Electronic band structure in the antiferromagnetic and ferromagnetic phases…

材料科学 · 物理学 2024-06-05 Apurba Sarkar , Joydeep Chatterjee , Arghya Taraphder , Nandan Pakhira

The structural, electronic, mechanical and thermodynamic properties of (Ti1-xMox)2AlC (0 < x < 0.20) were explored via density functional theory. The obtained lattice constants agree well with the experimental values. The electronic band…

材料科学 · 物理学 2020-05-19 M. A. Ali , S. H. Naqib
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