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相关论文: DFT study of rare earth (Tm, Yb, Ce) doped ZnO: st…

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The occurrence of charge density wave (CDW) phenomena, particularly in low dimensional rare-earth chalcogenides, has attracted substantial research interest. Among these materials, EuTe4, which features multiple Te layers and a single Eu-Te…

The electronic structure and magnetic properties of the strongly correlated material La$_2$O$_3$Fe$_2$Se$_2$ are studied by using both the density function theory plus $U$ (DFT+$U$) method and the DFT plus Gutzwiller (DFT+G) variational…

材料科学 · 物理学 2016-09-07 Guangxi Jin , Yilin Wang , Xi Dai , Xinguo Ren , Lixin He

We present structural, electrical, and thermoelectric potential measurements on high-quality single crystals of ZrTe$_{1.8}$ grown from isothermal chemical vapor transport. These measurements show that the Te-deficient ZrTe$_{1.8}$, which…

Recently synthesized quadruple perovskite CuCu$_3$Fe$_2$Re$_2$O$_{12}$ possesses strong ferromagnetism and unusual electron properties, including enhanced electronic specific heat. Application of the first principles electronic structure…

强关联电子 · 物理学 2025-02-25 A. I. Poteryaev , Z. V. Pchelkina , S. V. Streltsov , Y. Long , V. Yu. Irkhin

Modifying the optoelectronic properties of nanostructured materials through introduction of dopant atoms has attracted intense interest. Nevertheless, the approaches employed are often trial and error, preventing rational design. We…

材料科学 · 物理学 2021-07-13 Michael G. Taylor , Heather J. Kulik

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

Zn1-xRxO (R = Li, Mg, Cr, Mn, Fe and Cd) were obtained by using co-precipitation synthesis technique with constant weight percent of 3% from R ions. The phase composition, crystal structure, morphology, Density Functional Theory (DFT), and,…

材料科学 · 物理学 2021-10-26 T. A. Abdel-Baset , M. Abdel-Hafiez

Density functional theory (DFT) calculations are performed to predict the structural, electronic and magnetic properties of electrically neutral or charged few-atomic-layer (AL) oxides whose parent systems are based on polar perovskite…

Two common difficulties in the design of topological quantum materials are that the desired features lie too far from the Fermi level and are spread over a too-large energy range. Doping-induced states at the Fermi level provide a solution,…

介观与纳米尺度物理 · 物理学 2025-01-31 Moritz M. Hirschmann , Johannes Mitscherling

The transition metal nitride BaHfN$_2$, which consists of weakly bonded neutral slabs of closed shell ions, has structural and chemical similarities to other layered nitrides which have impressive superconducting T$_c$ when electron doped:…

材料科学 · 物理学 2010-10-20 Amandeep Kaur , Erik R. Ylvisaker , Yan Li , Giulia Galli , Warren E. Pickett

We have investigated the electronic, vibrational, optical, thermal and piezoelectric properties of LiNbO$_3$, LiTaO$_3$ and Li$_2$NbTaO$_6$ using the first-principles calculation based on the density functional theory. It also shows…

材料科学 · 物理学 2025-03-28 Debidutta Pradhan , Rojalin Swain , Souvagya Kumar Biswal , Jagadish Kumar

The current progress in describing rare-earth-based magnets' electronic structure and magnetic properties is discussed. We use several currently popular electronic structure methods to show the typical values of critical parameters that…

材料科学 · 物理学 2025-02-06 Zhen Zhang , Andrey Kutepov , Leonid Pourovskii , Vladimir Antropov

Ab initio calculation of the electronic properties of materials is a major challenge for solid state theory. Whereas the experience of forty years has proven density functional theory (DFT) in a suitable, e.g. local approximation (LDA) to…

强关联电子 · 物理学 2009-11-13 K. Held , O. K. Andersen , M. Feldbacher , A. Yamasaki , Y. -F. Yang

Ab initio calculations and angle-resolved photoemission experiments show that the bulk and surface electronic structure of Weyl semimetal candidate MoTe$_2$ changes significantly by tuning the chemical potential by less than 0.4 eV.…

Constrained density functional theory (CDFT) is used to evaluate the energy level alignment of a benzene molecule as it approaches a graphene sheet. Within CDFT the problem is conveniently mapped onto evaluating total energy differences…

介观与纳米尺度物理 · 物理学 2016-01-27 Subhayan Roychoudhury , Carlo Motta , Stefano Sanvito

The structural, elastic, electronic, Vickers-Hardness, vibrational, Optical and thermodynamical properties of potentially technologically significant superconductors CuRh2S4 and CuRh2Se4 have calculated using density functional theory (DFT)…

材料科学 · 物理学 2018-09-24 Md. Ibrahim Kholil , Md. Tofajjol Hossen Bhuiyan

While methods based on density-functional perturbation theory have dramatically improved our understanding of electron-phonon contributions to transport in materials, methods for accurately capturing electron-electron scattering relevant to…

The electronic structure of selected rare-earth atoms adsorbed on a free-standing graphene was investigated using methods beyond the conventional density functional theory (DFT+U, DFT+HIA and DFT+ED). The influence of the electron…

The geometrical and electronic structure of tripotassium doped phenanthrene, \ce{K3C14H10}, have been studied by first-principles density functional theory. The main effect of potassium doping is to inject charge in the narrow phenanthrene…

材料科学 · 物理学 2011-11-14 P. L. de Andres , A. Guijarro , J. A. Verges

We study the dopant-induced inhomogeneity effect on the electronic properties of heavy fermionCeCoIn5using a combined approach of density functional theory (DFT) and dynamical mean-field theory (DMFT). The inhomogeneity of the hybridization…

强关联电子 · 物理学 2022-04-06 Hong Chul Choi , Eric D. Bauer , Filip Ronning , Jian-Xin Zhu