Multilevel Spin Dynamics in Time-Dependent External Magnetic Field

2006 ◽  
Vol 26 (1-2) ◽  
pp. 47-54
Author(s):  
Péter Földi ◽  
Mihály G. Benedict ◽  
Francois M. Peeters
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Spin Dynamics ◽  
Time Dependent

Time-dependent topological Chern-Simons solitons in external magnetic field

1991 ◽  
Vol 44 (12) ◽  
pp. 3906-3910 ◽  
Author(s):  
Z. F. Ezawa ◽  
M. Hotta ◽  
A. Iwazaki
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Time Dependent ◽  
Chern Simons

Dynamics of vortex–antivortex creation and annihilation in current-driven mesoscopic superconducting squares

2015 ◽  
Vol 29 (35n36) ◽  
pp. 1550247
Author(s):  
Xiao-Meng Liang ◽  
Guo-Qiao Zha
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Landau Theory ◽  
Symmetric Case ◽  
Time Dependent ◽  
Dynamical Process ◽  
Applied Bias ◽  
Ginzburg Landau ◽  
Dc Drive ◽  
Vortex Velocity

In this paper, based on the time-dependent Ginzburg–Landau theory, we study the dynamics of vortex–antivortex (V–Av) pairs in a mesoscopic superconducting square with a small hole under applied bias currents. For the sample with a centered hole, a V–Av pair can nucleate at the hole edges and moves in opposite directions perpendicular to applied constant DC drive. The influence of the external magnetic field on the (anti)vortex velocity and the lifetime of V–Av pairs is mainly investigated. Different modes in the dynamical process of the V–Av collision and annihilation are identified. Moreover, in the case when the hole is displaced from the center of the square, the V–Av dynamics behaves quite differently from the symmetric case due to the shift of the V–Av creation point.

Manipulation of Spin Dynamics in Semiconductor Structures by Orientation of Small External Magnetic Field

2011 ◽  
Author(s):  
K. L. Litvinenko ◽  
M. A. Leontiadou ◽  
Juerong Li ◽  
E. T. Bowyer ◽  
S. K. Clowes ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Spin Dynamics ◽  
Semiconductor Structures

GEOMETRIC PHASE IN THE CONDENSED VAPOR OF Rb UNDER PRESSURE AND EXTERNAL MAGNETIC FIELD

2010 ◽  
Vol 24 (17) ◽  
pp. 1869-1875
Author(s):  
ZHAO-XIAN YU ◽  
ZHI-YONG JIAO ◽  
XIANG-GUI LI
Keyword(s):  
Magnetic Field ◽  
Atomic Nucleus ◽  
External Magnetic Field ◽  
Invariant Theory ◽  
Geometric Phase ◽  
Time Dependent ◽  
Coupling Constant ◽  
External Time

By using the Lewis–Riesenfeld invariant theory, we have studied the geometric phase in the condensed vapor of Rb under pressure and external time-dependent magnetic field. We find that the geometric phase in the cycle case has nothing to do with the coupling constant between electron and atomic nucleus, and the external time-dependent magnetic field.

scholarly journals Released power in a vortex-antivortex pairs annihilation process

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Cristian Aguirre-Tellez ◽  
Miryam Rincón-Joya ◽  
José José Barba-Ortega
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Diffusion Equation ◽  
Power Dissipation ◽  
Time Dependent ◽  
Thermal Dissipation ◽  
Annihilation Process ◽  
Ginzburg Landau ◽  
Dissipation Process ◽  
Ginzburg Landau Equations

In this paper, we studied the power dissipation process of a Shubnikov vortex-antivortex pair in a mesoscopic superconducting square sample with a concentric square defect in presence of an oscillatory external magnetic field. The time-dependent Ginzburg-Landau equations and the diffusion equation were numerically solved. The significant result is that the thermal dissipation is associated with a sizeable relaxation of the superconducting electrons, so that the power released in this kind of process might become calculated as a function of the time. Also, we analyzed the effect that the Ginbzurg-Landau κand deformation τparameters have on the magnetization, dissipate power and super-electrons density.

scholarly journals Time-dependent meson melting in an external magnetic field

2015 ◽  
Vol 91 (10) ◽  
Author(s):  
M. Ali-Akbari ◽  
F. Charmchi ◽  
A. Davody ◽  
H. Ebrahim ◽  
L. Shahkarami
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Time Dependent
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