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Formation of clusters of interlayer interstitial carbon atoms in graphite is studied by means of molecular dynamics simulation. It is shown that the deformation potential is attractive for interstitials located in one interlayer region and…

材料科学 · 物理学 2007-05-23 V. F. Elesin , L. A. Openov

We study simple lattice systems to demonstrate the influence of interpenetrating bond networks on phase behavior. We promote interpenetration by using a Hamiltonian with a weakly repulsive interaction with nearest neighbors and an…

软凝聚态物质 · 物理学 2014-11-03 Chia Wei Hsu , Francis W. Starr

When two 2D electron gas layers, each at Landau level filling factor $\nu=1/2$, are close together a condensate of interlayer excitons emerges at low temperature. Although the excitonic phase is qualitatively well understood, the incoherent…

介观与纳米尺度物理 · 物理学 2018-12-05 J. P. Eisenstein , L. N. Pfeiffer , K. W. West

The adhesion bonds connecting a lipid bilayer to an underlying surface may undergo a condensation transition resulting from an interplay between a short range attractive potential between them, and a long range fluctuation-induced potential…

软凝聚态物质 · 物理学 2016-02-25 Nadiv Dharan , Oded Farago

The interlayer coupling between (Ga,Mn)As ferromagnetic layers in all-semiconductor superlattices is studied theoretically within a tight-binding model, which takes into account the crystal, band and magnetic structure of the constituent…

材料科学 · 物理学 2009-11-11 P. Sankowski , P. Kacman

In this paper, we predict the existence of low-frequency nonlocal plasmon excitations at the vacuum-surface interface of a superlattice of $N$ graphene layers interacting with a thick conducting substrate. This is different from graphite…

介观与纳米尺度物理 · 物理学 2015-08-11 Godfrey Gumbs , Andrii Iurov , Jhao-Ying Wu , M. F. Lin , Paula Fekete

We analyze the connectivity of an $M$-layer network over a common set of nodes that are active only in a fraction of the layers. Each layer is assumed to be a subgraph (of an underlying connectivity graph $G$) induced by each node being…

统计力学 · 物理学 2016-06-15 Saikat Guha , Donald Towsley , Philippe Nain , Cagatay Capar , Ananthram Swami , Prithwish Basu

$\alpha$-graphyne is a two-dimensional sheet of $sp$-$sp^2$ hybridized carbon atoms in a honeycomb lattice. While the geometrical structure is similar to that of graphene, the hybridized triple bonds give rise to electronic structure that…

材料科学 · 物理学 2017-08-04 Hyeondeok Shin , Jeongnim Kim , Hoonkyung Lee , Olle Heinonen , Anouar Benali , Yongkyung Kwon

For the moment, there is no exact description of van der Waals (vdW) interactions. ACFD-RPA \cite{Gould1} is expected to better describe vdW bonding, but it is not exact. The PBE/DFT-D2 method is less satisfactory, however, its results are…

材料科学 · 物理学 2014-07-15 Xiaobin Chen , Fuyang Tian , Clas Persson , Wenhui Duan , Nanxian Chen

Stacking two layers of graphene with a relative twist angle gives rise to moir\'e patterns, which can strongly modify electronic behavior and may lead to unconventional superconductivity. A synthetic version of twisted bilayers can be…

Off-lattice Grand Canonical Monte Carlo simulations of the clean diamond (111) surface, based on the effective many-body Brenner potential, yield the $(2\times1)$ Pandey reconstruction in agreement with \emph{ab-initio} calculations and…

材料科学 · 物理学 2009-10-31 A. V. Petukhov , D. Passerone , F. Ercolessi , E. Tosatti , A. Fasolino

We study localization driven solely by interparticle interactions in moir\'e lattice systems without intrinsic disorder or externally imposed quasiperiodic potentials. We consider a one-dimensional bilayer with incommensurate lattice…

无序系统与神经网络 · 物理学 2026-02-03 Yan-Hao Yang , Zhihao Xu , Lei Ying , Qizhong Zhu

We discuss the conditions under which the predicted (but not yet observed) zero-field interlayer excitonic condensation in double layer graphene has a critical temperature high enough to allow detection. Crucially, disorder arising from…

介观与纳米尺度物理 · 物理学 2013-12-16 D. S. L. Abergel , M. Rodriguez-Vega , Enrico Rossi , S. Das Sarma

Formation of clusters of interstitial carbon atoms between the surface and second atomic layers of graphite is demonstrated by means of molecular dynamics simulations. It is shown that interstitial clusters result in the dome-like surface…

材料科学 · 物理学 2009-10-31 V. F. Elesin , L. A. Openov

Superlattice potentials are theoretically predicted to modify the single-particle electronic structures. The resulting Coulomb-interaction-dominated low-energy physics would generate highly novel many-body phenomena. Here, by in situ…

介观与纳米尺度物理 · 物理学 2022-06-22 Chaofei Liu , Jian Wang

Quark matter at sufficiently high density exhibits color superconductivity, due to attractive gluonic interactions. At lower densities of order $\Lambda_{QCD}^3$, it has been proposed that instanton generated vertices may play an important…

高能物理 - 唯象学 · 物理学 2009-10-31 Nick Evans , Stephen Hsu , Myckola Schwetz

We offer a brief overview of the solvent-based graphene production and summarize the current knowledge on the formation mechanism of graphite oxide that proceeds via graphite intercalation compounds. In addition, the results of our in situ…

化学物理 · 物理学 2017-01-24 Karolis Vilcinskas , Fokko M. Mulder , Stephen J. Picken , Ger J. M. Koper

Strong 1D lattices usually lead to unconnected two-dimensional gases. The long-range character of the dipole-dipole interactions leads to a novel scenario where non-overlapping gases at different sites may interact significantly. We show…

其他凝聚态物理 · 物理学 2010-08-27 M. Klawunn , L. Santos

Superconductivity in graphene has been highly sought after for its promise in various device applications and for general scientific interest. Ironically, the simple electronic structure of graphene, which is responsible for novel quantum…

超导电性 · 物理学 2015-08-28 Anand P. Tiwari , Soohyeon Shin , Eunhee Hwang , Soon-Gil Jung , Tuson Park , Hyoyoung Lee

In this work, we study the synergistic correlated states in two distinct types of interacting electronic systems coupled by interlayer Coulomb interactions. We propose that this scenario can be realized in a type of Coulomb-coupled…

介观与纳米尺度物理 · 物理学 2023-11-28 Xin Lu , Shihao Zhang , Yaning Wang , Xiang Gao , Kaining Yang , Zhongqing Guo , Yuchen Gao , Yu Ye , Zheng Vitto Han , Jianpeng Liu