Strongly coupled ripplonic polarons in a magnetic field

1993 ◽  
Vol 48 (21) ◽  
pp. 15905-15909 ◽  
Author(s):  
C. Y. Chen ◽  
P. W. Jin
Keyword(s):  
Magnetic Field ◽  
Strongly Coupled

The influences of parabolic potential and magnetism on strongly coupled polaron characteristics within asymmetric Gaussian quantum wells

2021 ◽  
Author(s):  
Saren Gaowa ◽  
Yan-Bo Geng ◽  
Zhao-Hua Ding ◽  
Jing-Lin Xiao
Keyword(s):  
Magnetic Field ◽  
Quantum Wells ◽  
Barrier Height ◽  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Cyclotron Frequency ◽  
Strongly Coupled ◽  
Parabolic Potential ◽  
Do So

In this research, the effects of magnetism and parabolic potential on strongly coupled polaron characteristics within asymmetric Gaussian quantum wells (AGQWs) were investigated. To do so, the following six parameters were studied, temperature, AGQW barrier height, Gaussian confinement potential (GCP) width, confinement strengths along the directions of [Formula: see text] and [Formula: see text], as well as magnetic field cyclotron frequency. The relationships among frequency oscillation, AGQW parameters and polaron ground state energy in RbCl crystal were studied based on linear combination operator and Lee–Low–Pines unitary transformation. It was concluded that ground state energy absolute value was decreased by increasing GCP width and temperature, and increased with the increase of confinement strength along [Formula: see text] and [Formula: see text] directions, cyclotron frequency of magnetic field and barrier height of AGQW. It was also found that vibrational frequency was increased by enhancing confinement strengths along the directions of [Formula: see text] and [Formula: see text], magnetic field cyclotron frequencies, barrier height AGQW and temperature and decreased with the increase of GCP width.

A Finite Element Framework for Magneto-Actuated Large Deformation and Instability of Slender Magneto-Active Elastomers

2020 ◽  
Vol 12 (01) ◽  
pp. 2050013 ◽  
Author(s):  
Yin Liu ◽  
Shoue Chen ◽  
Xiaobo Tan ◽  
Changyong Cao
Keyword(s):  
Magnetic Field ◽  
Finite Element ◽  
Magnetic Fields ◽  
Large Deformation ◽  
Rational Design ◽  
Mesh Distortion ◽  
Strongly Coupled ◽  
Background Space ◽  
Spatial Coordinates ◽  
The Magnetic Field

In this paper, we present an efficient finite element framework for modeling the finite deformations of slender magneto-active elastomers (MAE) under applied magnetic fields or currents. For the convenience of numerical modeling, magnetic field is defined at fixed spatial coordinates in the background space rather than in the elastic MAEs using material coordinates. The magnetic field will vary with free or localized currents while the spatial distribution of the magnetic field will evolve with the motion or deformation of the MAE materials, which is actuated by the surface or body forces induced by external magnetic fields or equivalent currents. A staggered strategy and a Riks method are introduced to solve the strongly coupled governing equations of the magnetic field and displacement field using finite element method. The mesh distortion along the interfaces between MAE domain and free-space domain is resolved by considering concurrent deformation of the mesh in these two domains. A few 2D numerical examples demonstrate the validity and efficiency of the developed model for simulating large deformation of MAE with non-uniform spatial magnetic field under different actuation sources such as free currents, magnetization or external magnetic field. This framework offers a new solution strategy for modeling mechano-magneto problems of MAEs and will help rational design and analysis of MAE-based actuators and soft robotics in the future.

Rotation in collisional strongly coupled dusty plasmas in a magnetic field

2002 ◽  
Vol 9 (2) ◽  
pp. 387-390 ◽  
Author(s):  
Predhiman K. Kaw ◽  
Kyoji Nishikawa ◽  
Noriyoshi Sato
Keyword(s):  
Magnetic Field ◽  
Dusty Plasmas ◽  
Strongly Coupled

scholarly journals Magnetic Field Induced Shear Flow in a Strongly Coupled Complex Plasma

2011 ◽  
Author(s):  
P. Bandyopadhyay ◽  
U. Konopka ◽  
K. Jiang ◽  
G. Morfill ◽  
Vladimir Yu. Nosenko ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Shear Flow ◽  
Strongly Coupled ◽  
Complex Plasma
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