Bulk moduli of two-dimensional Yukawa solids and liquids obtained from periodic compressions  

作　　者：卢少瑜 黄栋 A SHAHZAD 冯岩 Shaoyu LU;Dong HUANG;A SHAHZAD;Yan FENG(Institute of Plasma Physics and Technology,School of Physical Science and Technology,Soochow University,Suzhou 215006,Peopleʼs Republic of China;Department of Physics,Government College University Faisalabad(GCUF),Allama Iqbal Road,Faisalabad 38040,Pakistan;National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,Peopleʼs Republic of China)

机构地区：[1]Institute of Plasma Physics and Technology,School of Physical Science and Technology,Soochow University,Suzhou 215006,Peopleʼs Republic of China [2]Department of Physics,Government College University Faisalabad(GCUF),Allama Iqbal Road,Faisalabad 38040,Pakistan [3]National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,Peopleʼs Republic of China

出　　处：《Plasma Science and Technology》2023年第3期15-20,共6页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.12175159 and 11875199);the 1000 Youth Talents Plan,startup funds from Soochow University;the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions。

摘　　要：Langevin dynamical simulations are performed to determine the bulk modulus in twodimensional(2D) dusty plasmas from uniform periodic radial compressions. The bulk modulus is calculated directly from its physical definition of the ratio of the internal pressure/stress to the volume strain. Under various conditions, the bulk moduli obtained agree with the previous theoretical derivations from completely different approaches. It is found that the bulk moduli of2D Yukawa solids and liquids are almost independent of the system temperature and the external compressional frequency.

关 键 词：bulk modulus dusty plasma SIMULATION LANGEVIN complex plasma Yukawa systems 

分 类 号：O53[理学—等离子体物理]