scholarly journals Three-dimensional chromospheric magnetic field configurations based on photospheric-vector and chromospheric-multi-level longitudinal-magnetic field observations

1997 ◽  
Vol 122 (2) ◽  
pp. 381-396 ◽  
Author(s):  
S. Cuperman ◽  
C. Bruma ◽  
D. Heristchi
Keyword(s):  
Magnetic Field ◽  
Longitudinal Magnetic Field ◽  
Three Dimensional ◽  
Field Observations ◽  
Multi Level

scholarly journals Weyl-triplons in SrCu2(BO3)2

2020 ◽  
Author(s):  
Pinaki Sengupta ◽  
DHIMAN BHOWMICK
Keyword(s):  
Magnetic Field ◽  
Longitudinal Magnetic Field ◽  
Inelastic Neutron Scattering ◽  
Three Dimensional ◽  
Inelastic Neutron ◽  
Nodal Line ◽  
Low Energy ◽  
Zero Field ◽  
Quantum Magnet ◽  
The Individual

Abstract Presence of Weyl node, nodal line or nodal surface in the band structure is a signature of topological gapless phase in a three-dimensional(3D) material. Here, we propose that Weyl triplons are expected to appear in the low energy magnetic excitations in the canonical Shastry-Sutherland compound, \ce{SrCu2(BO3)2}, a quasi-2D quantum magnet. Our results show that whena minimal, realistic inter-layer coupling is added to the well-established microscopicmodel describing the excitation spectrum of the individual layers,the Dirac points that appears in the zero-field triplon spectrum of the 2D modelsplits into two pairs of Weyl points along the Kz direction. Varying the strength of the inter-layer Dzyaloshinskii–Moriya(DM) interaction and applying asmall longitudinal magnetic field results in a range of band topologytransitions accompanied by changing numbers of Weyl points. We propose inelastic neutron scattering along with thermal Hall effect as the experimental techniques to detect the presence of Weyl-node in the triplon spectrum of this material.

On the fluid behavior and stability of Ti-6Al-4V titanium alloy GMAW molten pool: Effect of the longitudinal magnetic field

2021 ◽  
pp. 2150283
Author(s):  
Chenglong Wu ◽  
Shaohua Han ◽  
Dingqi Xue ◽  
Jianbin Zhan
Keyword(s):  
Magnetic Field ◽  
Fluid Flow ◽  
Molten Pool ◽  
Longitudinal Magnetic Field ◽  
Liquid Metals ◽  
Flow Behavior ◽  
Three Dimensional ◽  
Surface Profile ◽  
Length Change ◽  
The Magnetic Field

By establishing a three-dimensional (3D) numerical simulation of the Ti-6Al-4V Gas Metal Argon Welding (GMAW) molten pool, the molten pool’s heat transfer and fluid flow behavior under a longitudinal magnetic field were investigated. The simulation results show that when the droplet enters the molten pool, the liquid metals on the molten pool’s surface symmetrically flow towards both sides of the molten pool from different angles. With the increase of the magnetic field strengthens, the temperature gradually decreases, and the fluid flow velocity increases continuously. Besides, the magnetic field strength is correlated positively with the molten pool’s size with a certain range of 0–0.03 T. However, when the magnetic field strengthens reach 0.04 T, the magnetic field is correlated negatively with the molten pool’s size. Because the Marangoni and buoyancy begin to weaken, the molten pool’s length change occurs before the width change. Simultaneously, a sizeable velocity region appears on the left side of the molten pool. Thus, the liquid metal gathers on the left side, resulting in the weld cross-section’s asymmetry. It can conclude that only when the magnetic strengthen keeps in the range of 0–0.03 T, the longitudinal magnetic field can make the molten pool’s surface profile smooth.

Refinement of metal structure in arc surfacing under the effect of longitudinal magnetic field

2019 ◽  
Vol 2019 (2) ◽  
pp. 19-21
Author(s):  
A.D. Razmyshlyaev ◽  
◽  
M.V. Ageeva ◽  
E.V. Lavrova ◽  
◽  
...  
Keyword(s):  
Magnetic Field ◽  
Longitudinal Magnetic Field ◽  
Metal Structure

A Three-Dimensional Magnetic Field Measurement for Magnetoencephalogram

2004 ◽  
Vol 124 (6) ◽  
pp. 199-202
Author(s):  
Koichiro Kobayashi ◽  
Yoshinori Uchikawa
Keyword(s):  
Magnetic Field ◽  
Field Measurement ◽  
Three Dimensional ◽  
Magnetic Field Measurement

Strategic Dual Image Method for Non-Axisymmetric Three-dimensional Magnetic Field Problems

2018 ◽  
Vol E101.C (1) ◽  
pp. 52-55
Author(s):  
Kengo SUGAHARA
Keyword(s):  
Magnetic Field ◽  
Three Dimensional ◽  
Image Method ◽  
Dual Image

INVESTIGATION OF CONVECTIVE HEAT TRANSFER WHEN LIQUID METAL FLOWS IN A PIPE IN A LONGITUDINAL MAGNETIC FIELD

1974 ◽  
Author(s):  
B. N. Baushev ◽  
E. Yu. Krasil'nikov ◽  
V. G. Lushchik ◽  
I. G. Panevin
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Liquid Metal ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Longitudinal Magnetic Field

Influence of the Superimposition of Longitudinal Magnetic Field on the Weld Shape during Submerged Arc Welding

1977 ◽  
Vol 9 (2) ◽  
pp. 57
Author(s):  
P. C. Gupta ◽  
D. Rehfeldt ◽  
F. Erdmann-Jesnitzer
Keyword(s):  
Magnetic Field ◽  
Arc Welding ◽  
Longitudinal Magnetic Field ◽  
Submerged Arc Welding ◽  
Weld Shape ◽  
Submerged Arc
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