☆ 4.6 Article

Casimir forces and graphene sheets

PHYSICAL REVIEW B (2010)

期刊

PHYSICAL REVIEW B

卷 82, 期 15, 页码 -

出版社

AMER PHYSICAL SOC

DOI: 10.1103/PhysRevB.82.155459

关键词

-

类别

Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter

资金

Department of Energy [DE-FG02-06ER46297]

向作者/读者索取更多资源

Protocol

Reagent

摘要

The Casimir force between two infinitely thin parallel sheets in a setting of N such sheets is found. The finite two-dimensional conductivities, which describe the dispersive and absorptive properties of each sheet, are taken into account, whereupon the theory is applied to interacting graphenes. By exploring similarities with in-plane optical spectra for graphite, the conductivity of graphene is modeled as a combination of Lorentz-type oscillators. We find that the graphene transparency and the existence of a universal constant conductivity e(2)/(4h) result in the graphene/graphene Casimir interaction at large separations to have the same distance dependence as the one for perfect conductors but with much smaller magnitude. The Casimir force is also studied when the graphene system is above a substrate or immersed in a medium. It is found that the response properties of the environmental materials can strongly affect the graphene interaction.

作者

我是这篇论文的作者

点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6

评分不足

次要评分

新颖性

-

重要性

-

科学严谨性

-

评价这篇论文

推荐

Article Materials Science, Multidisciplinary

Casimir effect for a stack of graphene sheets

Natalia Emelianova, Nail Khusnutdinov, Rashid Kashapov

Summary: In this study, explicit formulas for the Casimir energy of parallel sheets composed of conducting planes with tensorial conductivities were derived using the scattering matrix approach. Formulas for the Casimir energy and force acting on the planes within a stack of graphene were obtained by solving the recurrence relations. The binding energy in the graphene stack with graphite interplane separation was also calculated and found to be E-ib = 9.9 meV/atom. Notably, the Casimir force on graphene sheets decreases rapidly for planes beyond the first one, with the force on the second graphene layer being 35 times smaller than that experienced by the first layer.

PHYSICAL REVIEW B (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Casimir-Polder attraction and repulsion between nanoparticles and graphene in out-of-thermal-equilibrium conditions

G. L. Klimchitskaya, V. M. Mostepanenko, O. Yu. Tsybin

Summary: In this study, the nonequilibrium Casimir-Polder force between a nanoparticle and a graphene sheet kept at different temperatures was examined using the formalism of the polarization tensor in the framework of a Dirac model. The results demonstrate that the magnitude of the force increases with the temperature of the graphene sheet. The impact of nonequilibrium conditions on the force becomes smaller at larger separations. Our findings reveal that for a graphene sheet with a lower temperature than the environment, the attractive Casimir-Polder force vanishes at a specific separation distance and becomes repulsive at larger distances. This effect has potential applications in fundamental graphene research and force control in bioelectronic microdevices.

PHYSICAL REVIEW B (2022)

添加到收藏夹

Article Physics, Particles & Fields

Yukawa-Casimir wormholes

Remo Garattini

Summary: This work explores a Yukawa modification of the Casimir wormhole, applying a Zero Tidal Forces Equation of State. Two different approaches are examined, one fixing the shape function in various ways and the other deducing the form of the shape function from the original Casimir source modified by a Yukawa term. The connection with the Absurdly Benign Traversable Wormhole is also discussed.

EUROPEAN PHYSICAL JOURNAL C (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

Non-reciprocal energy transfer through the Casimir effect

Zhujing Xu, Xingyu Gao, Jaehoon Bang, Zubin Jacob, Tongcang Li

Summary: The study explores the non-reciprocal energy transfer phenomenon caused by quantum vacuum fluctuations, demonstrating strong coupling between two micromechanical oscillators through modulation of Casimir interaction parameters, leading to non-reciprocal energy transfer.

NATURE NANOTECHNOLOGY (2022)

添加到收藏夹

Article Multidisciplinary Sciences

Observation and control of Casimir effects in a sphere-plate-sphere system

Zhujing Xu, Peng Ju, Xingyu Gao, Kunhong Shen, Zubin Jacob, Tongcang Li

Summary: This study reports an experimental demonstration of Casimir force exerted among three objects, using a unique sphere-plate-sphere geometry. The research also proposes and demonstrates a three-terminal switchable architecture for opto-mechanical Casimir interactions which could lead to the development of a Casimir transistor with potential applications in sensing and information processing.

NATURE COMMUNICATIONS (2022)

添加到收藏夹

Article Multidisciplinary Sciences

Tunable self-assembled Casimir microcavities and polaritons

Battulga Munkhbat, Adriana Canales, Betul Kucukoz, Denis G. Baranov, Timur O. Shegai

Summary: This study introduces a method for stable microcavity formation based on self-assembly of gold nanoflake pairs in an aqueous solution, utilizing the equilibrium between attractive Casimir forces and repulsive electrostatic forces. The system allows for tunable optical microcavities with adjustable equilibrium configurations, enabling the realization of hybrid light-matter states. These Casimir microcavities could potentially be used in opto-mechanics, nanomachinery, and cavity-induced polaritonic chemistry.

NATURE (2021)

添加到收藏夹

Article Physics, Multidisciplinary

Universal Casimir Interaction between Two Dielectric Spheres in Salted Water

Tanja Schoger, Benjamin Spreng, Gert-Ludwig Ingold, Paulo A. Maia Neto, Serge Reynaud

Summary: We studied the Casimir interaction between two dielectric spheres immersed in a salted solution and found that this interaction exhibits universality properties at distances larger than the Debye screening length. This finding is important for the modeling of colloids and biological interfaces.

PHYSICAL REVIEW LETTERS (2022)

添加到收藏夹

Article Optics

Casimir interaction with black phosphorus sheets

Lei Wang, Haiqing Sun, Yonglei Jia, Lixing Ge, Zhichao Ji, Ke Gong

Summary: In this study, the Casimir interaction between isotropic plates (made of gold or graphene) and black phosphorus (BP) sheets was calculated using Lifshitz theory. It was observed that the Casimir force with BP sheets is alpha times larger than the perfect metal limit, with alpha representing the fine structure constant. The strong anisotropy of BP conductivity leads to a difference in the Casimir force contribution between the two principal axes. Increasing the doping concentration in both BP and graphene sheets enhances the Casimir force. Additionally, introducing a substrate and raising the temperature can double the Casimir force, revealing new possibilities for designing next-generation devices in micro- and nano-electromechanical systems.

OPTICS EXPRESS (2023)

添加到收藏夹

Article Physics, Multidisciplinary

Multiple Scattering Expansion for Dielectric Media: Casimir Effect

Thorsten Emig, Giuseppe Bimonte

Summary: Recent measurements of Casimir forces have shown that quantum fluctuations of the electromagnetic field undergo intricate modifications in complex geometries. In this paper, a multiple scattering description is introduced for calculating Casimir interactions between bodies of arbitrary shape and material composition. This approach allows for the calculation of interactions in complex geometries using just a few wave scatterings, without any prior knowledge of the scattering amplitudes of the bodies. Some initial applications demonstrate the efficacy of this method.

PHYSICAL REVIEW LETTERS (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Casimir and electrostatic forces from Bi2Se3 thin films of varying thickness

Z. Babamahdi, V. B. Svetovoy, D. T. Yimam, B. J. Kooi, T. Banerjee, J. Moon, S. Oh, M. Enache, M. Stohr, G. Palasantzas

Summary: The film thickness plays a crucial role in determining the Casimir and electrostatic forces of topological insulating Bi2Se3 films. Thicker films can approach the genuine Casimir force after voltage compensation, while strong electrostatic effects lead to gradual deviation from theory in thinner films.

PHYSICAL REVIEW B (2021)

添加到收藏夹

Article Physics, Multidisciplinary

Effect of Epsilon-Near-Zero Modes on the Casimir Interaction between Ultrathin Films

Tao Gong, Inigo Liberal, Benjamin Spreng, Miguel Camacho, Nader Engheta, Jeremy N. Munday

Summary: The Casimir effect is a phenomenon where macroscopic metallic objects experience an attractive force due to vacuum fluctuation-induced interactions. This force is influenced by both plasmonic and photonic modes. In this study, we investigate the Casimir interaction between ultrathin films and find pronounced repulsive contributions to the force caused by highly confined and nearly dispersion-free epsilon-near-zero (ENZ) modes unique to ultrathin films. These contributions occur consistently around the ENZ frequency of the film regardless of interfilm separation. We also observe a thickness dependence of a figure of merit (FOM) for conductive thin films associated with ENZ modes, suggesting enhanced motion of objects induced by Casimir interactions for deeply nanoscale sizes.

PHYSICAL REVIEW LETTERS (2023)

添加到收藏夹

Article Optics

Geometrical dependence in Casimir-Polder repulsion

John Joseph Marchetta, Prachi Parashar, K. Shajesh

Summary: This study explores the repulsion effects on an anisotropically polarizable atom located on the symmetry axis of an anisotropically polarizable annular disk, which has two torsion-free points on each side. The position of the second torsion-free point on either side affects the orientation dependence of the atom, showing a geometrical relationship. In the ring limit of the annular disk, an additional region of repulsion is observed.

PHYSICAL REVIEW A (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Crumpling Defective Graphene Sheets

Yangchao Liao, Zhaofan Li, Long Chen, Andrew B. Croll, Wenjie Xia

Summary: Research has shown that Stone-Wales defects have a strong influence on the crumpling behavior of graphene sheets, affecting their size scaling laws and weakening their self-adhesion. Additionally, these defects lead to enhanced mechanical heterogeneity and a glass-like amorphous state in crumpled graphene.

NANO LETTERS (2023)

添加到收藏夹

Review Physics, Multidisciplinary

Optical trapping and critical Casimir forces

Agnese Callegari, Alessandro Magazzu, Andrea Gambassi, Giovanni Volpe

Summary: The article discusses the emergence of critical Casimir forces and the use of optical tweezers to study these forces. Experimentally studying critical Casimir forces using optical tweezers can play a crucial role in developing nano-technologies.

EUROPEAN PHYSICAL JOURNAL PLUS (2021)

添加到收藏夹

Article Astronomy & Astrophysics

The Low-Temperature Expansion of the Casimir-Polder Free Energy of an Atom with Graphene

Nail Khusnutdinov, Natalia Emelianova

Summary: The study investigated the low-temperature expansion of the Casimir-Polder free energy for an atom and graphene using the Poisson representation. The analysis extended to different relations between chemical potential mu and mass gap parameter m, with a focus on the dependence of graphene conductivities on mu and m. Results revealed the thermal correction for mu>m resembling T-2, and differing behavior for mu<m or mu

UNIVERSE (2021)

添加到收藏夹

Article Physics, Multidisciplinary

Charge-Induced Fluctuation Forces in Graphitic Nanostructures

D. Drosdoff, Igor V. Bondarev, Allan Widom, Rudolf Podgornik, Lilia M. Woods

PHYSICAL REVIEW X (2016)

添加到收藏夹

Article Physics, Applied

Temperature dependent graphene suspension due to thermal Casimir interaction

Anh D. Phan, Lilia M. Woods, D. Drosdoff, I. V. Bondarev, N. A. Viet

APPLIED PHYSICS LETTERS (2012)

添加到收藏夹

Article Chemistry, Physical

Dispersive interactions in graphitic nanostructures

L. M. Woods, A. Popescu, D. Drosdoff, I. V. Bondarev

CHEMICAL PHYSICS (2013)

添加到收藏夹

Article Physics, Condensed Matter

Effects of spatial dispersion on the Casimir force between graphene sheets

D. Drosdoff, A. D. Phan, L. M. Woods, I. V. Bondarev, J. F. Dobson

EUROPEAN PHYSICAL JOURNAL B (2012)

添加到收藏夹

Article Physics, Nuclear

Viscosity of high energy nuclear fluids

Vivek Parihar, Allan Widom, David Drosdoff, Yogendra N. Srivastava

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS (2008)

添加到收藏夹

Article Optics

Casimir interactions between graphene sheets and metamaterials

D. Drosdoff, Lilia M. Woods

PHYSICAL REVIEW A (2011)

添加到收藏夹

Article Optics

van der Waals interactions between nanostructures: Some analytic results from series expansions

T. Stedman, D. Drosdoff, L. M. Woods

PHYSICAL REVIEW A (2014)

添加到收藏夹

Article Astronomy & Astrophysics

Casimir energy for surfaces with constant conductivity

Nail Khusnutdinov, D. Drosdoff, Lilia M. Woods

PHYSICAL REVIEW D (2014)

添加到收藏夹

Article Physics, Multidisciplinary

Quantum and Thermal Dispersion Forces: Application to Graphene Nanoribbons

D. Drosdoff, Lilia M. Woods

PHYSICAL REVIEW LETTERS (2014)

添加到收藏夹

Article Materials Science, Multidisciplinary

Transverse Electric Mode for Near-Field Radiative Heat Transfer in Graphene-Metamaterial Systems

D. Drosdoff, A. D. Phan, L. M. Woods

ADVANCED OPTICAL MATERIALS (2014)

添加到收藏夹

Article Physics, Fluids & Plasmas

Fluid-mechanical and electrical fluctuation forces in colloids

D. Drosdoff, A. Widom

PHYSICAL REVIEW E (2006)

添加到收藏夹

Article Education, Scientific Disciplines

Snell's law from an elementary particle viewpoint

D Drosdoff, A Widom

AMERICAN JOURNAL OF PHYSICS (2005)

添加到收藏夹

Article Physics, Fluids & Plasmas

Quantum drag forces on a sphere moving through a rarefied gas

D Drosdoff, A Widom, Y Srivastava

PHYSICAL REVIEW E (2005)

添加到收藏夹

Article Physics, Particles & Fields

Electronic detection of gravitational disturbances and collective coulomb interactions

A Widom, D Drosdoff, S Sivasubramanian, YN Srivastava

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS (2004)

添加到收藏夹

暂无数据

© Peeref 2019-2024. All rights reserved.