Chinese Physics B
About: Chinese Physics B is an academic journal. The journal publishes majorly in the area(s): Laser & Quantum entanglement. It has an ISSN identifier of 1674-1056. Over the lifetime, 14535 publication(s) have been published receiving 85200 citation(s). The journal is also known as: Chinese Physics. B.
Papers published on a yearly basis
03 Nov 2016-Chinese Physics B
TL;DR: In this article, the authors review the recent progress in the study of topological nodal line semimetals in 3D and discuss different scenarios that when the protecting symmetry is broken, how a topologically topologically protected semimetal becomes Weyl, Dirac, and other topological phases, and discuss the possible physical effects accessible to experimental probes in these materials.
Abstract: We review the recent, mainly theoretical, progress in the study of topological nodal line semimetals in three dimensions. In these semimetals, the conduction and the valence bands cross each other along a one-dimensional curve in the three-dimensional Brillouin zone, and any perturbation that preserves a certain symmetry group (generated by either spatial symmetries or time-reversal symmetry) cannot remove this crossing line and open a full direct gap between the two bands. The nodal line(s) is hence topologically protected by the symmetry group, and can be associated with a topological invariant. In this review, (i) we enumerate the symmetry groups that may protect a topological nodal line; (ii) we write down the explicit form of the topological invariant for each of these symmetry groups in terms of the wave functions on the Fermi surface, establishing a topological classification; (iii) for certain classes, we review the proposals for the realization of these semimetals in real materials; (iv) we discuss different scenarios that when the protecting symmetry is broken, how a topological nodal line semimetal becomes Weyl semimetals, Dirac semimetals, and other topological phases; and (v) we discuss the possible physical effects accessible to experimental probes in these materials.
05 Jan 2016-Chinese Physics B
01 May 2013-Chinese Physics B
TL;DR: A comprehensive review of various types of graphene-based strain sensors with different structures and mechanisms is given in this paper. But, the authors do not consider the use of a perfect Graphene, as perfect Gaspane is robust and has a low piezoresistive sensitivity.
Abstract: In this paper, we review various types of graphene-based strain sensors. Graphene is a monolayer of carbon atoms, which exhibits prominent electrical and mechanical properties and can be a good candidate in compact strain sensor applications. However, a perfect graphene is robust and has a low piezoresistive sensitivity. So scientists have been driven to increase the sensitivity using different kinds of methods since the first graphene-based strain sensor was reported. We give a comprehensive review of graphene-based strain sensors with different structures and mechanisms. It is obvious that graphene offers some advantages and has potential for the strain sensor application in the near future.
01 Sep 2013-Chinese Physics B
TL;DR: In this paper, field effect transistors for logic applications, based on two representative two-dimensional (2D) materials, graphene and MoS2, are discussed, and the future developments in 2D material transistors are discussed.
Abstract: Field-effect transistors (FETs) for logic applications, based on two representative two-dimensional (2D) materials, graphene and MoS2, are discussed. These materials have drastically different properties and require different considerations. The unique band structure of graphene necessitates engineering of the Dirac point, including the opening of the bandgap, the doping and the interface, before the graphene can be used in logic applications. On the other hand, MoS2 is a semiconductor, and its electron transport depends heavily on the surface properties, the number of layers, and the carrier density. Finally, we discuss the prospects for the future developments in 2D material transistors.
01 Nov 2012-Chinese Physics B
TL;DR: In this article, the authors make use of the modified Drude model (MDM) based on the Sommerfeld theory to investigate the transmission behaviors of surface plasmon polariton (SPP) transmission lines.
Abstract: Recently, the single metal wire (SW) has become attractive for its potential applications in the terahertz and higher frequency range. However, as the most simple and typical surface plasmon polariton (SPP) transmission line, its study seems far from enough. Many important transmission behaviours have not been explained satisfactorily from the viewpoint of physics. In this paper, making use of the modified Drude model (MDM) based on the Sommerfeld theory, the transmission behaviours of SPPs along SW are systemically investigated theoretically. Some important physical phenomena such as the mode transformation, the lifetime of the radiative mode and the resonance frequency are revealed, and their mechanisms are explored. The results obtained in the paper will facilitate a general understanding of the features and the physical essence of the SPP transmission, not only for SW itself but also for other SPP transmission lines.
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