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Related papers: Fermi-level depinning in metal-2D multilayered sem…

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We present state-of-the-art electronic structure calculations for the Co$_2$MnSn full-Heusler alloy. We show that in its bulk form it is a half-metallic ferromagnet with the Fermi level being located within a tiny gap of the minority-spin…

Materials Science · Physics 2011-01-28 I. Galanakis

A full, nonperturbative renormalization group analysis of interacting electrons in a graphite layer is performed, in order to investigate the deviations from Fermi liquid theory that have been observed in the experimental measures of a…

Strongly Correlated Electrons · Physics 2009-10-31 J. Gonzalez , F. Guinea , M. A. H. Vozmediano

We theoretically explore the effect of metal and disulphur vacancies on electronic and optical properties of MoS$_2$ and WS$_2$ monolayers based on a Slater-Koster tight-binding model and including the spin-orbit coupling. We show that the…

Mesoscale and Nanoscale Physics · Physics 2018-05-25 Saboura Salehi , Alireza Saffarzadeh

We study the role of electronegativity in sliding friction for five different two dimensional (2D) monolayer systems using density functional theory (DFT) with van der Waals (vdW) corrections. We show that the friction between the…

Materials Science · Physics 2020-06-16 Jianjun Wang , Avinash Tiwari , Yang Huang , Yu Jia , B. N. J. Persson

Multiferroic materials are potential to be applied in novel magnetoelectric devices, for example, high-density non-volatile storage. Last decades, research on multiferroic materials was focused on three-dimensional (3D) materials. However,…

Materials Science · Physics 2019-02-25 Youfang Lai , Zhigang Song , Yi Wan , Mingzhu Xue , Yu Ye , Lun Dai , Wenyun Yang , Honglin Du , jinbo Yang

Mn2+-doped semiconductor nanocrystals with tuned location and concentration of Mn2+ ions can yield diverse coupling regimes, which can highly influence their optical properties such as emission wavelength and photoluminescence (PL)…

In layered single band systems, the interlayer conductivity depends on the orientation of the in-plane magnetic field and takes maximum values when the magnetic field is perpendicular to flat regions of the Fermi surface. Extending this…

Superconductivity · Physics 2009-10-26 Takao Morinari , Hiroki Nakamura , Masahiko Machida , Takami Tohyama

Layers of transition metal dichalcogenides (TMDs) combine the enhanced effects of correlations associated with the two-dimensional limit with electrostatic control over their phase transitions by means of an electric field. Several…

It is demonstrated that the electric dipole layer due to the overlapping of electron wavefunctions at metal/graphene contact results in negative Fermi-level pinning effect on the region of GaAs surface with low interface-trap density in…

Mesoscale and Nanoscale Physics · Physics 2022-08-18 Hoon Hahn Yoon , Wonho Song , Sungchul Jung , Junhyung Kim , Kyuhyung Mo , Gahyun Choi , Hu Young Jeong , Jong Hoon Lee , Kibog Park

In many cases, unconventional superconductivity are realized by suppressing another order parameter, such as charge density wave (CDW) or spin density wave (SDW). This suggests that the fluctuations of these order parameters play an…

Superconductivity · Physics 2015-05-26 S. Maeda , K. Matano , R. Yatagai , T. Oguchi , Guo-qing Zheng

The de Haas - van Alphen effect in two-dimensional (2D) metals is investigated at different conditions and with different shapes of Landau levels (LLs). The analytical calculations can be done when many LLs are occupied. We consider the…

Statistical Mechanics · Physics 2007-05-23 P. D. Grigoriev , I. D. Vagner

The frequency dependence of the interlayer conductivity of a layered Fermi liquid in a magnetic field which is tilted away from the normal to the layers is considered. For both quasi-one- and quasi-two-dimensional systems resonances occur…

Strongly Correlated Electrons · Physics 2009-10-31 Ross H. McKenzie , Perez Moses

The Fermi level position in (Ga,Mn)N has been determined from the period-analysis of GaN-related Franz-Keldysh oscillation obtained by contactless electroreflectance in a series of carefully prepared by molecular beam epitaxy…

Materials Science · Physics 2017-12-19 L. Janicki , G. Kunert , M. Sawicki , E. Piskorska-Hommel , K. Gas , R. Jakiela , D. Hommel , R. Kudrawiec

We study a model of correlated electrons coupled by tunnelling to a layer of itinerant metallic electrons, which allows to interpolate from a frustrated limit favorable to spin liquid states to a Kondo-lattice limit favorable to interlayer…

Strongly Correlated Electrons · Physics 2021-02-25 Chuan Chen , Inti Sodemann , Patrick A. Lee

Phase transitions of a flux lattice in layered superconductors with magnetic field perpendicular to the layers and in presence of disorder are studied. We find that the Josephson coupling between layers leads to a strongly pinned Josephson…

Superconductivity · Physics 2009-10-30 Baruch Horovitz , T. Ruth Goldin

Emergent phenomena driven by electronic reconstructions in oxide heterostructures have been intensively discussed. However, the role of these phenomena in shaping the electronic properties in van der Waals heterointerfaces has hitherto not…

It has been found that periodically closely spaced vacancies on a graphite sheet cause a significant rearrange-ment of its electronic spectrum: metallic waveguides with a high density of states near the Fermi level are formed along the…

Materials Science · Physics 2007-05-23 L. A. Chernozatonskii , P. B. Sorokin , E. E. Belova , J. Bruning , A. S. Fedorov

Weyl type-II fermions are massless quasiparticles that obey the Weyl equation and which are predicted to occur at the boundary between electron- and hole-pockets in certain semi-metals, i.e. the (W,Mo)(Te,P)$_2$ compounds. Here, we present…

Mesoscale and Nanoscale Physics · Physics 2017-09-20 R. Schönemann , N. Aryal , Q. Zhou , Y. -C. Chiu , K. -W. Chen , T. J. Martin , G. T. McCandless , J. Y. Chan , E. Manousakis , L. Balicas

Low energy properties of the metallic state of the 2-dimensional tJ model are presented at various densities and temperatures for second neighbor hopping t', with signs that are negative or positive corresponding to hole or electron doping.…

Strongly Correlated Electrons · Physics 2026-01-16 B. Sriram Shastry , Peizhi Mai

The alignment of the frontier orbital energies of an adsorbed molecule with the substrate Fermi level at metal-organic interfaces is a fundamental observable of significant practical importance in nanoscience and beyond. Typical density…

Mesoscale and Nanoscale Physics · Physics 2017-03-07 Zhenfei Liu , David A. Egger , Sivan Refaely-Abramson , Leeor Kronik , Jeffrey B. Neaton