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In strongly correlated quantum materials, electrons behave in ways that often extend beyond the confines of conventional Fermi-liquid theory. Interesting results include the observation of low-temperature metallic behavior in systems that…

Strongly Correlated Electrons · Physics 2024-05-20 Sanfeng Wu

The paper deals with the theoretical consideration of surface plasmon-polaritons in the graphene monolayer, embedded into dielectric with spatially separated gain and losses. It is demonstrated, that presence of gain and losses in the…

Mesoscale and Nanoscale Physics · Physics 2023-10-02 O. A. Zhernovnykova , O. V. Popova , G. V. Deynychenko , T. I. Deynichenko , Yuliy V. Bludov

We report a detailed investigation of the Fermi surface in the layered Dirac semimetal TaNiTe$_5$. We probed the magnetization, magnetic torque and magnetoresistance in high-quality single crystals. Pronounced Shubnikov - de Haas (SdH) and…

Mesoscale and Nanoscale Physics · Physics 2025-07-15 Maximilian Daschner , Bruno Gudac , Mario Novak , Cheng Liu , Friedrich Malte Grosche , Ivan Kokanović

Modulating the amplitude and phase of light is at the heart of many applications such as wavefront shaping, transformation optics, phased arrays, modulators and sensors. Performing this task with high efficiency and small footprint is a…

Graphene plasmons are able to become the fundermental of novel conceptual photonic devices, resulting from their unique characteristics containing excitation at room temperature and tunable spectral selectivity in different frequencies. The…

Optics · Physics 2022-09-27 Junxiong Guo , Shangdong Li , Jianbo Chen , Ji Cai , Xin Gou , Shicai Wang , Jinghua Ye , Yu Liu , Lin Lin

The influence of magnetic impurities on the transport properties of graphene is investigated in the regime of strong applied electric fields. As a result of electron-hole pair creation, the response becomes nonlinear and dependent on the…

Mesoscale and Nanoscale Physics · Physics 2014-09-02 Arnaud Demion , Alberto D. Verga

Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) material heterostructures. The discovery of ferroelectricity in twisted vdW layers provides new opportunities to…

The Fermi surface of graphite has been mapped out using de Haas van Alphen (dHvA) measurements at low temperature with in-situ rotation. For tilt angles $\theta>60^{\circ}$ between the magnetic field and the c-axis, the majority electron…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 J. M. Schneider , B. A. Piot , I. Sheikin , D. K. Maude

We demonstrate a dynamic surface plasmonic modulation of graphene-nanowire hybrid structures in visible light range, which was thought to be a tough task for graphene based field effect transistor modulator previously. Static modulation…

Mesoscale and Nanoscale Physics · Physics 2013-12-02 Haoliang Qian , Yaoguang Ma , Qing Yang , Bigeng Chen , Ying Liu , Xin Guo , Shisheng Lin , Jili Ruan , Xu Liu , Limin Tong , Zhong Lin Wang

Fabry-P\'erot (FP) cavities are fundamental and ubiquitous optical elements frequently used in various sensing applications. Here, we introduce a general theoretical framework to study arbitrary light-cavity mode interactions for planar FPs…

Optics · Physics 2020-07-21 Jakub Czuchnowski , Robert Prevedel

We investigate the long-range behavior of the induced Casimir interaction between two spinless heavy impurities, or polarons, in superfluid cold atomic gases. With the help of effective field theory (EFT) of a Galilean invariant superfluid,…

Quantum Gases · Physics 2022-12-01 Keisuke Fujii , Masaru Hongo , Tilman Enss

The electromagnetic response of subwavelength wires coated with a graphene monolayer illuminated by a linearly polarized plane waves is investigated. The results show that the scattering and extintion cross-sections of the coated wire can…

Optics · Physics 2015-05-13 Máximo Riso , Mauro Cuevas , Ricardo A. Depine

In a circuit quantum eletrodynamic system, a chain of N qubits inhomogeneously coupled to a cavity field forms a mesoscopic quasi-lattice, which is characterized by its degree of deformation from a normal lattice. This deformation is a…

Quantum Physics · Physics 2014-04-23 Hou Ian , Yu-xi Liu

Strongly coupling materials to cavity fields can affect their electronic properties altering the phases of matter. We study the monolayer graphene whose electrons are coupled to both left and right circularly polarized photons, and…

Mesoscale and Nanoscale Physics · Physics 2024-11-26 Ceren B. Dag , Vasil Rokaj

We show that when graphene monolayers are disordered, the conductance exhibits a metallic-to-insulating transition, which opens the door to new electronic devices. The transition can be observed by driving the density or Fermi energy…

Disordered Systems and Neural Networks · Physics 2009-12-07 M. Hilke

The electronic behavior in graphene under arbitrary uniaxial deformations, such as foldings or flexural fields is studied by including in the Dirac equation pseudoelectromagnetic fields. General foldings are thus studied by showing that…

Mesoscale and Nanoscale Physics · Physics 2023-03-23 Abdiel E. Champo , Gerardo G. Naumis

Polaritonic modes in two-dimensional van der Waals materials display short in-plane wavelengths compared with light in free space. As interesting as this may look from both fundamental and applied viewpoints, such large confinement is…

Mesoscale and Nanoscale Physics · Physics 2019-06-10 Eduardo J. C. Dias , F. Javier García de Abajo

Polaritons - hybrid light-mater excitations - are very appealing for the confinement of light at the nanoscale. Recently, different kinds of polaritons have been observed in thin slabs of van der Waals (vdW) materials, with particular…

In this paper, three different materials Si, ITO and graphene; and three different types of mode structures bulk, slot and hybrid; based on their electrooptical and electro absorptive aspects in performance are analyzed. The study focuses…

Mesoscale and Nanoscale Physics · Physics 2016-12-09 Rubab Amin , Can Suer , Zhizhen Ma , Jacob B. Khurgin , Ritesh Agarwal , Volker J. Sorger

Here we report a facile method to generate a high density of point defects in graphene on metal foil and show how the point defects affect the electronic structures of graphene layers. Our scanning tunneling microscopy (STM) measurements,…

Mesoscale and Nanoscale Physics · Physics 2013-10-08 Hui Yan , Cheng-Cheng Liu , Ke-Ke Bai , Xuejiao Wang , Mengxi Liu , Wei Yan , Lan Meng , Yanfeng Zhang , Zhongfan Liu , Jia-Cai Nie , Yugui Yao , Lin He