scholarly journals Effect of surface curvature on magnetic moment and persistent currents in two-dimensional quantum rings and dots

2004 ◽  
Vol 69 (19) ◽  
Author(s):  
D. V. Bulaev ◽  
V. A. Geyler ◽  
V. A. Margulis
Keyword(s):  
Magnetic Moment ◽  
Surface Curvature ◽  
Two Dimensional ◽  
Persistent Currents ◽  
Quantum Rings ◽  
Effect Of Surface

Bulk-like Magnetic Moment of Epitaxial Two-dimensional Superlattices

2021 ◽  
pp. 1-1
Author(s):  
Jiabao Sun ◽  
Shanshan Liu ◽  
Faxian Xiu ◽  
Wenqing Liu
Keyword(s):  
Magnetic Moment ◽  
Two Dimensional

Lithium Storage in Bowl-like Carbon: The Effect of Surface Curvature and Space Geometry on Li Metal Deposition

2021 ◽  
pp. 2145-2152
Author(s):  
Weibin Ye ◽  
Lina Wang ◽  
Yichen Yin ◽  
Xinhang Fan ◽  
Yong Cheng ◽  
...  
Keyword(s):  
Surface Curvature ◽  
Metal Deposition ◽  
Lithium Storage ◽  
Space Geometry ◽  
Effect Of Surface

Motion of a charged particle in superposed Heliotron and biconical cusp fields

1969 ◽  
Vol 3 (2) ◽  
pp. 255-267 ◽  
Author(s):  
M. P. Srivastava ◽  
P. K. Bhat
Keyword(s):  
Magnetic Field ◽  
Charged Particle ◽  
Magnetic Moment ◽  
Particle Trajectory ◽  
Three Dimensional ◽  
Equation Of Motion ◽  
Neutral Point ◽  
Two Dimensional ◽  
Axially Symmetric ◽  
Hybrid Type

We have studied the behaviour of a charged particle in an axially symmetric magnetic field having a neutral point, so as to find a possibility of confining a charged particle in a thermonuclear device. In order to study the motion we have reduced a three-dimensional motion to a two-dimensional one by introducing a fictitious potential. Following Schmidt we have classified the motion, as an ‘off-axis motion’ and ‘encircling motion’ depending on the behaviour of this potential. We see that the particle performs a hybrid type of motion in the negative z-axis, i.e. at some instant it is in ‘off-axis motion’ while at another instant it is in ‘encircling motion’. We have also solved the equation of motion numerically and the graphs of the particle trajectory verify our analysis. We find that in most of the cases the particle is contained. The magnetic moment is found to be moderately adiabatic.

Vorticity and curvature at a free surface

1998 ◽  
Vol 356 ◽  
pp. 149-153 ◽  
Author(s):  
MICHAEL S. LONGUET-HIGGINS
Keyword(s):  
Free Surface ◽  
Simple Relation ◽  
Surface Curvature ◽  
Three Dimensions ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Umbilical Point ◽  
Two Dimensional Flow ◽  
Principal Directions ◽  
Component Parallel

For two-dimensional flow there is a simple relation between the vorticity at a stress-free surface and the surface curvature. In this note the relation is generalized to flow in three dimensions. It is shown that in addition to a component of vorticity perpendicular to the flow there is also a component parallel to the direction of flow. The latter vanishes only at an umbilical point or when the flow is in one of the two principal directions of curvature.

scholarly journals Oscillatory Persistent Currents in Self-Assembled Quantum Rings

2007 ◽  
Vol 99 (14) ◽  
Author(s):  
N. A. J. M. Kleemans ◽  
I. M. A. Bominaar-Silkens ◽  
V. M. Fomin ◽  
V. N. Gladilin ◽  
D. Granados ◽  
...  
Keyword(s):  
Persistent Currents ◽  
Quantum Rings ◽  
Self Assembled

Width-dependent structural stability and magnetic properties of monolayer zigzag MoS2 nanoribbons

2017 ◽  
Vol 31 (03) ◽  
pp. 1750017 ◽  
Author(s):  
Yan-Ni Wen ◽  
Peng-Fei Gao ◽  
Xi Chen ◽  
Ming-Gang Xia ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Structural Stability ◽  
Magnetic Moment ◽  
First Principles ◽  
Density Functional ◽  
Electronic States ◽  
Two Dimensional ◽  
Functional Theory ◽  
Proportional Relationship

First-principles study based on density functional theory has been employed to investigate width-dependent structural stability and magnetic properties of monolayer zigzag MoS2 nanoribbons (ZZ-MoS2 NRs). The width N = 4–6 (the numbers of zigzag Mo–S chains along the ribbon length) are considered. The results show that all studied ZZ-MoS2 NRs are less stable than two-dimensional MoS2 monolayer, exhibiting that a broader width ribbon behaves better structural stability and an inversely proportional relationship between the structural stability (or the ribbon with) and boundary S–Mo interaction. Electronic states imply that all ZZ-MoS2 NRs exhibit magnetic properties, regardless of their widths. Total magnetic moment increases with the increasing width N, which is mainly ascribed to the decreasing S–Mo interaction of the two zigzag edges. In order to confirm this reason, a uniaxial tension strain is applied to ZZ-MoS2 NRs. It has been found that, with the increasing tension strain, the bond length of boundary S–Mo increases, at the same time, the magnetic moment increases also. Our results suggest the rational applications of ZZ-MoS2 NRs in nanoelectronics and spintronics.

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