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相关论文: High-density electron doping of SmNiO$_3$ from fir…

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The hexagonal multiferroic oxide YMnO$_3$ has demonstrated applications in various fields and is widely researched due to its interesting properties. Since Mn(3d)--O(2p) interactions predominate close to the Fermi level, doping in the…

材料科学 · 物理学 2025-10-22 Kazi Mazba Kamal , Alamgir Kabir

High-speed electrical switching of Ge2Sb2Te5 (GST) remains a challenging task due to the large impedance mismatch between the low-conductivity amorphous state and the high-conductivity crystalline state. In this letter, we demonstrate an…

Semiconducting two-dimensional (2D) antiferromagnetic (AFM) transition-metal thiophosphates (MPS3) offer promising opportunities for spintronic applications due to their highly tunable electronic properties. While alloying and intercalation…

Solar-driven water electrolysis requires high-performance photoelectrodes that exhibit excellent photoabsorption, superior charge transport, and optimized thermal management. In this work, we conducted a first-principles investigation to…

化学物理 · 物理学 2025-08-22 Abdul Ahad Mamun , Muhammad Anisuzzaman Talukder

Electronic structure of a newly discovered antiperovskite superconductor MgCNi$_3$ is investigated by using the LMTO band method. The main contribution to the density of states (DOS) at the Fermi energy $E_{\rm F}$ comes from Ni 3$d$ states…

超导电性 · 物理学 2007-05-23 J. H. Shim , S. K. Kwon , B. I. Min

The extrapolation of small-cluster exact-diagonalization calculations is used to study the influence of doping on valence transitions in the spinless Falicov-Kimball model at nonzero temperatures. Two types of doping are examined, and…

强关联电子 · 物理学 2009-11-11 Pavol Farkasovsky

Effect of doping of graphene either by Boron (B), Nitrogen (N) or co-doped by B and N is studied using density functional theory. Our extensive band structure and density of states calculations indicate that upon doping by N (electron…

介观与纳米尺度物理 · 物理学 2012-07-31 Sugata Mukherjee , T. P. Kaloni

Using density-functional theory, we demonstrate that the formal layer charges of the metallic samarium nickelate electrode influence the spontaneous ferroelectric polarization of the barium titanate in SmNiO$_3$/BaTiO$_3$ capacitors. We…

材料科学 · 物理学 2024-11-18 Edith Simmen , Nicola A. Spaldin

We investigate the impact of the quantum effects of protons on the electronic structure of high-pressure H$_3$S, a benchmark hydrogen-rich superconductor with a critical temperature ($T_c$) exceeding 200 K. Using Nuclear-Electronic Orbital…

计算物理 · 物理学 2026-04-07 Jianhang Xu , Aaron M. Schankler , Yosuke Kanai

The stationary functional of the all-electron density functional plus dynamical mean field theory (DFT+DMFT) formalism to perform free energy calculations and structural relaxations is implemented for the first time. Here, the first order…

强关联电子 · 物理学 2015-12-23 Kristjan Haule , Turan Birol

Emergent magnetic states at oxide interfaces arise from the interplay of charge transfer, orbital reconstruction, and dimensional confinement, offering a route to engineered correlated-electron behavior in nanoscale spintronic materials.…

Motivated by the controversy between quantum chemists and solid-state physicists, and by recent experimental results, spin-polarized density-functional (DFT) calculations are used to probe electron correlation in the Si(100) reconstructed…

材料科学 · 物理学 2007-05-23 Oscar Paz , Antonio J. R. da Silva , Juan Jose Saenz , Emilio Artacho

The experimental observation of superconductivity in LaFeAsO appearing on doping is analyzed with the group-theoretical approach that evidently led in a foregoing paper (J. Supercond 24:2103, 2011) to an understanding of the cause of both…

超导电性 · 物理学 2021-06-08 Ekkehard Krüger , Horst P. Strunk

The interface electronic structure of correlated LaTiO$_3$/SrTiO$_3$ superlattices is investigated by means of the charge self-consistent combination of the local density approximation (LDA) to density functional theory (DFT) with dynamical…

强关联电子 · 物理学 2013-06-07 Frank Lechermann , Lewin Boehnke , Daniel Grieger

Accurate high-energy electron diffraction measurements of structure factors of NiO have been carried out to investigate how strong correlations in the Ni 3d shell affect electron charge density in the interior area of nickel ions and…

强关联电子 · 物理学 2009-10-31 S. L. Dudarev , L. -M. Peng , S. Y. Savrasov , J. -M. Zuo

Doping of strongly layered ionic oxides is an established paradigm for creating novel electronic behavior. This is nowhere more apparent than in superconductivity, where doping gives rise to high temperature superconductivity in cuprates…

超导电性 · 物理学 2013-07-17 E. R. Ylvisaker , W. E. Pickett

Detailed doping dependence of the electronic specific heat coefficient gamma is studied for La2-xSrxCuO4 (LSCO) single crystals in the slightly-doped regime. We find that gamma systematically increases with doping, and furthermore, even for…

超导电性 · 物理学 2010-04-21 Seiki Komiya , I. Tsukada

Recently, the superconductivity of bilayer nickelate La3Ni2O7 has been observed in the thin film at ambient pressure, facilitated by epitaxial strain. Here, we investigate the effects of film thickness and carrier doping on the electronic…

超导电性 · 物理学 2025-03-27 Haoliang Shi , Zihao Huo , Guanlin Li , Hao Ma , Tian Cui , Dao-Xin Yao , Defang Duan

Using density functional based LDA+U method and linear-response theory, we study the magnetic exchange interactions of the superconductor Nd{1-x}Sr{x}NiO2. Our calculated nearest-neighbor exchange constant J1=82 meV is large, weakly…

强关联电子 · 物理学 2021-02-17 Xiangang Wan , Vsevolod Ivanov , Giacomo Resta , Ivan Leonov , Sergey Y. Savrasov

The dissociation of hydrogen molecules on the \gamma-U(100) surface is systematically studied with the density functional theory method. Through potential energy surface calculations, we find that hydrogen molecules can dissociate without…

材料科学 · 物理学 2011-10-27 Yu Yang , Ping Zhang , Peng Shi , Xiaolin Wang