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相关论文: Structures and Properties of $\beta$-Titanium Dopi…

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The future of spintronic and semiconductor applications demands materials with tailored electronic and magnetic properties. This study uses density functional theory to investigate the electronic structure of the half-metallic compound…

材料科学 · 物理学 2025-07-08 Sujoy Datta , Prashant Singh

Preliminary results on the properties of transition-metal (Ti, V, Cr, Mn, Fe, Co, Ni) $\delta$-doped ZnO are reported. Using \emph{ab-initio} electronic structure calculations the magnetic order is studied assuming both the cubic rock-salt…

材料科学 · 物理学 2013-09-26 Iosif Galanakis

The structure and thermodynamic properties of Ti$_x$(HfNbTaZr)$_{(1-x)/4}$ from Refractory High Entropy multicomponent Alloys to pure titanium are investigated employing comprehensive MCSQS realizations of the disordered atomic structure…

材料科学 · 物理学 2024-07-18 Asif I. Bhatti , Marwa Al-Houcine , David Tingaud , Sylvain Queyreau

Structural, mechanical, electronic, and thermodynamic properties of fluorite and tetragonal phases of ZrH$_{2}$ are systematically studied by employing the density functional theory within generalized gradient approximation. The existence…

材料科学 · 物理学 2010-08-02 Peng Zhang , Bao-Tian Wang , Chao-Hui He , Ping Zhang

Spintronics is the fast growing field that will play a key role in optimizing power consumption, memory, and processing capabilities of nanoelectronic devices. Heusler alloys are potential candidates for application in spintronics due to…

材料科学 · 物理学 2022-04-15 Nikolai A Zarkevich , Prashant Singh , A. V. Smirnov , Duane D. Johnson

In this study, we employ bulk electronic properties characterization and x-ray scattering/spectroscopy techniques to map the structural, magnetic and electronic properties of (Eu$_{1-x}$Ca$_{x}$)$_{2}$Ir$_{2}$O$_{7}$ as a function of…

强关联电子 · 物理学 2021-08-03 E. Zoghlin , Z. Porter , S. Britner , S. Husremovic , Y. Choi , D. Haskel , G. Laurita , S. D. Wilson

A comprehensive study of the total energy of manganese-rich Heusler compounds using density functional theory is presented. Starting from a large set of cubic parent systems, the response to tetragonal distortions is studied in detail. We…

材料科学 · 物理学 2015-08-26 Lukas Wollmann , Stanislav Chadov , Jürgen Kübler , Claudia Felser

Using first-principles calculations based on density functional theory, we probe the electronic and magnetic properties of X$_{2}$PtGa (X being Cr, Mn, Fe, Co) Heusler alloys. Our calculations predict that all these systems possess inverse…

材料科学 · 物理学 2016-11-23 Tufan Roy , Aparna Chakrabarti

Effects of chemical substitution of the divalent transition metals has been systematically investigated in Mg$_{1-x}M_x$B$_2$ (x=0.03; M=Mn, Fe, Co, Ni and Zn). Substitution of magnetic ions, i.e., Mn$^{2+}$, Fe$^{2+}$, Co$^{2+}$ and…

超导电性 · 物理学 2007-05-23 Y. Moritomo , Sh. Xu

We investigate the local atomic and electronic structure, thermodynamic stability, and defect chemistry of $A_{6}B_{2}$O$_{17}$ ($A$ = Zr/Hf, $B$ = Nb/Ta) oxides using first-principles density functional theory (DFT) calculations. We…

材料科学 · 物理学 2025-09-24 Jacob T. Sivak , R. Jackson Spurling , Jon-Paul Maria , Susan B. Sinnott

We report on the Pt doping effect on surface and electronic structure in Ir$_{\mathrm{1-x}}$Pt$_{\mathrm{x}}$Te$_ {\mathrm{2}}$ by scanning tunneling microscopy (STM) and spectroscopy (STS). The surface prepared by cleavage at 4.2 K shows a…

超导电性 · 物理学 2015-06-24 Y. Fujisawa , T. Machida , K. Igarashi , A. Kaneko , T. Mochiku , S. Ooi , M. Tachiki , K. Komori , K. Hirata , H. Sakata

The phase stability and transformation between hexagonal close-packed (hcp) {\alpha}-phase and body-centered cubic (bcc) \b{eta}-phase in titanium (Ti) alloys are critical to their mechanical properties and manufacturing processes for…

材料科学 · 物理学 2025-05-06 Huicong Chen , Chenwei Shao , Zhuocheng Xie , Jun Song , Yu Zou

We present a first-principles study based on density functional theory (DFT) on the electronic and structural properties of Ta2NiSe5, a layered transition metal chalcogenide that has been considered as a possible candidate for an excitonic…

材料科学 · 物理学 2025-09-23 Weichen Tang , Zhenglu Li , Cheng Chen , Yu He , Steven G. Louie

The elastic properties of paramagnetic cubic B1 (c-) Cr1-xAlxN ternary alloys are studied using stress-strain and energy-strain methods within the framework of Density Functional Theory (DFT). A strong compositional dependence of the…

材料科学 · 物理学 2014-07-10 Liangcai Zhou , David Holec , Paul H. Mayrhofer

By means of molecular-dynamics simulations, temperature driven diffusionless structural phase transitions in equi- and nearly equiatomic ordered nickel-titanium alloys were investigated. For this purpose, a model potential from the…

材料科学 · 物理学 2022-01-04 Daniel Mutter , Peter Nielaba

In this paper I discuss the electronic structure and properties of a specific, rather unconventional class of transition metal (TM) compounds, e.g. TM oxides, which formally have unusually high values of the oxidation state, or valence, of…

强关联电子 · 物理学 2007-05-23 D. Khomskii

In this paper we study, both with theoretical and experimental approach, the effect of iron doping in zirconia. Combining density functional theory (DFT) simulations with the experimental characterization of thin films, we show that iron is…

Inspired by the synthesis of XB3C3 (X= Sr, La) compounds in the bipartite sodalite clathrate structure, density functional theory (DFT) calculations are performed on members of this family containing up to two different metal atoms. A…

超导电性 · 物理学 2023-01-27 Nisha Geng , Katerina P. Hilleke , Li Zhu , Xiaoyu Wang , Timothy A. Strobel , Eva Zurek

Solid-solid phase transitions in metals are traditionally driven by changes in density or external pressure. Here we show that, under strong electronic excitation, structural stability is governed by the interplay between electronic effects…

材料科学 · 物理学 2026-04-27 S. Azadi , S. M. Vinko , A. Principi , T. D. Kuehne , M. S. Bahramy

Systematic investigation of atomic structure of N-ion implanted TiO2 (thin films and bulk ceramics) was performed by XPS measurements (core levels and valence bands) and first-principles density functional theory (DFT) calculations. In bulk…