Contents
2020
Volume: 69 Issue 2
36 Article(s)

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Superconductivity in topological materials
Kai-Yuan Gu, Tian-Chuang Luo, Jun Ge, and Jian Wang
In recent years, by introducing topological invariants into condensed matter systems, new phases of mater are revealed. Of these new phases, the topological insulator, topological semimetal and topological superconductor are the most important. They are called topological materials due to nontrivial topological paramet
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 020301-1 (2020)
Inspiration of wrinkles in layered material for the mechanism study of several geological activities
Hong Xu, Zheng-Yi Yuan, Tong-Fei Huang, Xiao Wang, Zheng-Xian Chen, Jin Wei, Xiang Zhang, and Yuan Huang
In this work, we propose a universal method of preparing wrinkle structures in layered crystals, which provides a good model for studying the physical properties of layered materials under strain. More importantly, there are some similarities between wrinkle engineering and geological activities, which inspires us to g
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 026101-1 (2020)
Opportunity and challenge for study of valence electron structure in typical magnetic materials
Gui-De Tang, Zhuang-Zhi Li, Li Ma, Guang-Heng Wu, and Feng-Xia Hu
The conventional magnetic ordering models, exchange interaction, super-exchange (SE) interaction and double exchange (DE) interaction models relating to the valence electron structure in the materials, were proposed about in or before the 1950's, the time when there was little experimental evidence. Since the 1970&
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 027501-1 (2020)
Analytical solution of three-dimensional Fourier transform frequency spectrum for three-level potassium atomic gas
Chao-Ying Zhao, and Wei-Han Tan
With the development of laser technology in the field of optics, ultra-fast optics has become an important research field. Compared with the traditional technology, ultrafast optics can be realized not only under shorter pulse function, but also on a smaller scale, which can more quickly reflect the dynamic process. We
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 020201-1 (2020)
Two-dimensional wave equation solved by generalized alternating flux based local discontinuous Galerkin method
Rong-Pei Zhang, Di Wang, Xi-Jun Yu, and Xue-Bing Wen
The wave propagation is often carried out in complex geological structures. Solving the wave propagation problem effectively in inhomogeneous medium is of great interest and has many applications in physics and engineering. In this paper, the local discontinuous Galekin (LDG) method is applied to the numerical solution
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 020202-1 (2020)
Electrical properties of an arbitrary m×n rectangular network
Zhi-Zhong Tan, and Zhen Tan
The development of natural science raises many complex new problems and requires people to find the basic method to resolve them. It was found that many problems could be resolved by building the resistor network model. In 1845, the German scientist Kirchhoff set up the node current law and the circuit voltage law.Sinc
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 020502-1 (2020)
Density functional theory calculation of spectrum and excitation properties of mer-Alq3
Jie Peng, Si-Jie Zhang, Ke Wang, and Martin Dove
Meridional tris(8-hydroxyquinoline)aluminum (III) (mer-Alq3) is an organometallic semiconductor material with phenomenal photo-electric properties. In order to understand the molecular luminescence properties of mer-Alq3, the density functional theoretical (B3LYP) method with 6-31G* basis set is employed to calculate i
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 023101-1 (2020)
Analytical algorithem of stretcher dispersion in chirp pulse amplification laser system
Nan Wang, and Shuang-Chen Ruan
Dispersion control is one of many key techniques in ultrashort laser pulse generation and its applications. By controlling the optical path of wavelength in the laser pulse to generate relative time delay, the pulse width of laser can be changed. The stretcher is the optical scheme to broaden the pulse width in chirp p
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024201-1 (2020)
Mode control of electrically injected semiconductor laser with parity-time symmetry
Xue-You Wang, Yu-Fei Wang, and Wan-Hua Zheng
The non-Hermitian description is of great significance for open systems, and the Hamiltonian which satisfies parity-time symmetry can make the energy have real eigenvalue within a certain range. The properties of parity-time symmetry have bright application prospects in optical systems. For semiconductor lasers, the pa
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024202-1 (2020)
Spatiotemporal evolution and spectral character of second harmonic generation in optical microresonator
Xin Xu, Xue-Ying Jin, Xiao-Hong Hu, and Xin-Ning Huang
With the consideration of the second and the third order nonlinear effect, the Lugiato-Lefeve equation which describes the field evolution of the fundamental frequency wave and the second harmonic wave is introduced. Based on the Lugiato-Lefeve equation, the generation of the second harmonic wave in the SiN microresona
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024203-1 (2020)
Interaction between spatiotemporal collinear self-decelerating Airy elegant-Laguerre-Gaussian wave packets in free space
Xia-Ping Zhang
Based on the (3+1)-dimensional free-space Schr?dinger equation, the analytical solutions to the equation for the propagating properties of two three-dimensional collinear self-decelerating Airy-elegant-Laguerre-Gaussian(AELG) light beams in free space are investigated. The different mode numbers, the mode index for eac
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024204-1 (2020)
Control of the terahertz spectra generated from laser induced plasma
Xiao-Lu Li, Ya Bai, and Peng Liu
Broadband terahertz (THz) emission generated from laser induced gas plasma provides an effective tool for studying nonlinear spectrum, imaging and remote sensing. Recently, the contribution of plasma oscillation to the THz emission was revealed from the nitrogen molecules pumped by intense two-color laser pulses. Plasm
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024205-1 (2020)
Inversion of vertical rainfall field based on earth-space links
Ming-Hao Xian, Xi-Chuan Liu, Min Yin, Kun Song, and Tai-Chang Gao
The accurate measurement of rain intensity and its distribution in vertical direction can not only help to understand the process of rainfall development, but also play an important role in human life such as agriculture, weather forecasting, water resources management, and natural disaster warning. According to the an
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024301-1 (2020)
Broadband periodic and aperiodic acoustic topological insulator based on composite honeycomb structure
Dong-Liang Pei, Tao Yang, Meng Chen, Yu Liu, Wen-Shuai Xu, Man-Gong Zhang, Heng Jiang, and Yu-Ren Wang
The discovery of quantum Hall effect and quantum spin Hall effect has set off a new research upsurge in condensed matter physics. As is analogous to electronic systems, many novel optical and acoustic control devices have been designed by using the defects- immune and backscatter suppression of topological edges in pho
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024302-1 (2020)
Effects of wind-generated bubbles layer on sound propagation underneath rough sea surface in shallow water
Mei-Juan Yao, Li-Cheng Lu, Bing-Wen Sun, Sheng-Ming Guo, and Li Ma
The reflection coefficient of the flat sea surface in the ideal condition to the incident sound wave is –1. The perfect reflection effect does not introduce reflection loss. However, the sea surface is usually rough due to the wind. The wind-generated rough sea surface has not only reflection effect, but also scatterin
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024303-1 (2020)
Response characteristics of inflow-stimulated Kelvin-Helmholtz vortex in compressible shear layer
Dong-Dong Zhang, Jian-Guo Tan, and Xiao Yao
By numerically solving the Navier-Stokes equations, the response characteristics of inflow-stimulated Kelvin-Helmholtz vortex in compressible shear layer arestudied. The mixing characteristics and the unique growth mechanism of the vortex structure are clearly revealed. By employing the index of vorticity thickness, th
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024701-1 (2020)
Experimental investigation on dynamic behavior of single droplet impcating normally on dry sphere
Peng-Bo Tang, Guan-Qing Wang, Lu Wang, Zhong-Yu Shi, Yuan Li, and Jiang-Rong Xu
The phenomenon that droplets impacting on the solid surface is ubiquitous in industrial applications such as spray cooling, spray painting, ink-jet printing, and fuel-air mixing internal combustion engines. The dynamic of droplet impacting on solid surface has been a hot topic in the area of fluid mechanics. Most of th
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024702-1 (2020)
Experimental study on effect of transverse groove with/without discharge hole on hypersonic blunt flat-plate boundary layer transition
Qiang Li, Lei Zhao, Su-Yu Chen, Tao Jiang, Yu Zhuang, and Kou-Li Zhang
Experiments are carried out on the Φ2 m Shock Tunnel (FD-14A) at the China Aerodynamics Research and Development Center to study the effect of the transverse groove with/without discharge hole on the hypersonic blunt flat-plate boundary layer transition, and the preliminary computational and theoretical research are ca
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 024703-1 (2020)
Effects of reflection of electrons and negative ions on magnetized electronegative and collisional plasma sheath
Hui-Ping Liu, and Xiu Zou
The effects of the reflection of electrons and negative ions in magnetized electronegative and collisional plasma sheath on the Bohm criterion and the sheath structure are numerically investigated. The Bohm criterion expression of the sheath with considering the reflection of electrons and negative ions is derived theo
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 025201-1 (2020)
Experimental technique for dynamic fragmentation of materials via indirect drive by high-intensity laser
Gen-Bai Chu, Ming-Hai Yu, Min Shui, Wei Fan, Tao Xi, Long-Fei Jing, Yong-Qiang Zhao, Yu-Chi Wu, Jian-Ting Xin, and Wei-Min Zhou
High intensity laser is an efficient method for shock generator to study the dynamic fragmentation of materials, in which the direct drive is widely utilized. The continuum phase plate is used for smoothing the focal spot of the laser, but the loading region is usually smaller than the designed value. In this work, we
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 026201-1 (2020)
Effect of surfactants on adsorption behavior of nanoparicles at gas-liquid surface
Xuan Zhang, Tian-Ci Zhang, Ji-Jiang Ge, Ping Jiang, and Gui-Cai Zhang
Silica nanoparticles (NPs) are more and more useful in many engineering areas, but the dynamic behaviors of adsorption of NPs at surface are not clear, especially when there exist surfactants on the surface. The modified NPs with the nonionic dimethyl silane are partially hydrophobic, and in this paper, the surface beh
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 026801-1 (2020)
Corrosion mechanism of T1 phase in Al-Cu-Li alloy: First-principles calculations
Min Kong, Jing-Jing Wu, Tian-Ru Han, and Xin Tang
First principle calculations in the framework of density functional theory are performed to calculate the T1 phase (Al6Cu4Li3), which is the main precipitation in Al-Cu-Li alloy. In this paper, the surface energy values and surface electron work functions of different termination surfaces in T1 phase are calculated. Me
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 027101-1 (2020)
Tunable terahertz absorber with multi-defect combination embedded VO2 thin film structure
Xu-Sheng Chen, and Jiu-Sheng Li
The metamaterial absorber has the advantages of thin thickness, small size, simple structure and high absorption. As is different from the traditional metamaterial absorber, the adjustable material is used for designing the structure, which can realize the dynamic modulation of the device by changing the external facto
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 027801-1 (2020)
Ion implantation isolation based micro-light-emitting diode device array properties
Cheng-Hao Gao, Feng Xu, Li Zhang, De-Sheng Zhao, Xing Wei, Ling-Juan Che, Yong-Zhang Zhuang, Bao-Shun Zhang, and Jing Zhang
Compared with conventional light-emitting diode (LED), micro-LED has excellent photo-electric properties such as high current density, light output power density, light response frequency. It has widespread application prospects in the field of light display, optical tweezers, and visible light communication. However,
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 027802-1 (2020)
Near-field infrared microscopy of graphene on metal substrate
Gui Cen, Zhi-Bin Zhang, Xin-Yu Lü, Kai-Hui Liu, and Zhi-Qiang Li
Graphene plasmons, collective oscillation modes of electrons in graphene, have recently attracted intense attention in both the fundamental researches and the applications because of their strong field confinement, low loss and excellent tunability. The dispersion of graphene plasmons can be significantly modified in t
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 027803-1 (2020)
Characteristics of hydrogen-terminated single crystalline diamond field effect transistors with different surface orientations
Jin-Feng Zhang, Jia-Min Xu, Ze-Yang Ren, Qi He, Sheng-Rui Xu, Chun-Fu Zhang, Jin-Cheng Zhang, and Yue Hao
Diamond has great potential applications in high-power, high-frequency semiconductor devices because of its wide band gap (5.5 eV), high thermal conductivity (22W/(cm·K)), and high carrier mobility (4500 cm2/(V·s) for electron, and 3800 cm2/(V·s) for hole). It has been widely considered as an ultimate se
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028101-1 (2020)
Controllable growth of GeSi nanowires on trench patterned Si(001) substrate
Fei Gao, Qi Feng, Ting Wang, and Jian-Jun Zhang
Controllable growth of nanowires is a prerequisite for addressability and scalability of nanowire quantum devices. By combining top-down nanofabrication and bottom-up self-assembly, site-controlled GeSi nanowires with two (105) facets can be grown on Si (001) substrate with pre-patterned trenches. Trenches along the [1
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028102-1 (2020)
Super-lattice patterns in two-layered coupled non-symmetric reaction diffusion systems
Fu-Cheng Liu, Ya-Hui Liu, Zhi-Xiang Zhou, Xue Guo, and Meng-Fei Dong
The coupling mechanism is one of most important approaches to generating multiple-scaled spatial-temporal patterns. In this paper, the mode interaction between two different Turing modes and the pattern forming mechanisms in the non-symmetric reaction diffusion system are numerically investigated by using a two-layered
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028201-1 (2020)
A class of approximate computation method for antenna directivity
Jun-Qun Liu
Directivity is one of the core performance parameters for an antenna, and its accurate computation and measurement have been receiving attention in the past decades. While quite a number of computational methods for antenna directivity are developed, a comprehensive comparison among these methods, including their advan
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028401-1 (2020)
Raman thermometry based thermal resistance analysis of GaN high electron mobility transistors with copper-based composite flanges
Kang Liu, and Hua-Rui Sun
The electrical performance and the long-term reliability of GaN-based high electron mobility transistors (HEMTs) are greatly affected by the Joule self-heating effect under high power density operation condition. Measurement of the junction temperature and analysis of the thermal resistance of the constituent layers in
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028501-1 (2020)
Continuous-wave terahertz quantitative dual-plane ptychography
Da-Yong Wang, Bing Li, Lu Rong, Jie Zhao, Yun-Xin Wang, and Chang-Chao Zhai
Terahertz (THz) radiation lies between the millimeter and infrared region of the electromagnetic spectrum, which is typically defined as the frequency range of 0.1–10 THz and the corresponding wavelength ranges from 30 μm to 3 mm. Terahertz radiation due to wide spectrum, high penetration, low energy, and other importa
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028701-1 (2020)
Distinguishing node propagation influence by expected index of finite step propagation range
Xin Li, Cheng-Li Zhao, and Yang-Yang Liu
On-line social networks have gradually become an indispensable tool for people. Identifying nodes with high influence in the network as an initial source of communication is of great significance in social perception and rumor control. According to the independent cascade model, in this paper we present an index descri
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 028901-1 (2020)
Comparison between ionospheric disturbances caused by barium and cesium
Xiao-Li Zhu, Yao-Gai Hu, Zheng-Yu Zhao, and Yuan-Nong Zhang
After being released in the ionosphere, alkali-metal atoms will be rapidly photoionized by solar UV, producing positive ions and electrons, and forming artificial plasma cloud. Based on a three-dimensional two-species fluid model, considering both the loss of barium atoms due to photoionization and oxidation and the in
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 029401-1 (2020)
An efficient Monte Carlo simulation method for thermal radiation transport
Yu-Pei Xu, and Shu Li
Thermal radiation transfer in material and the interaction between radiative photon and material are important research projects of the inertial confinement fusion, and Monte Carlo method is one of the important researching methods. Based on the implicit integral-differential transport equation, traditional implicit Mo
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 029501-1 (2020)
Near infrared characteristics of air plasma induced by nanosecond laser
Xing-Sheng Wang, Yan-Ming Ma, Xun Gao, and Jing-Quan Lin
The near infrared emission from laser induced air plasma has been investigated in a range of 1100–2400 nm. The infrared spectra of air plasma consist of linear spectral and continuum radiation. Most of the spectral features observed are identified, including atomic lines of O I and N I and molecular bands of N2. The sp
Acta Physica Sinica
  • Publication Date: Jan. 01, 1900
  • Vol. 69, Issue 2, 029502-1 (2020)