scholarly journals Crossover phenomena in the one-dimensional SU(4) spin-orbit model under magnetic fields

2000 ◽  
Vol 61 (6) ◽  
pp. 4012-4018 ◽  
Author(s):  
Yasufumi Yamashita ◽  
Naokazu Shibata ◽  
Kazuo Ueda
Keyword(s):  
Magnetic Fields ◽  
Spin Orbit ◽  
One Dimensional ◽  
The One ◽  
Orbit Model

The one‐dimensional X‐Y model in inhomogeneous magnetic fields

1973 ◽  
Vol 14 (6) ◽  
pp. 720-732 ◽  
Author(s):  
K. M. Case ◽  
C. W. Lau
Keyword(s):  
Magnetic Fields ◽  
One Dimensional ◽  
The One

Rashba spin-orbit coupling in InGaAs/InP quantum wires

2004 ◽  
Vol 825 ◽  
Author(s):  
Jens Knobbe ◽  
Vitaliy A. Guzenko ◽  
Thomas Schäpers
Keyword(s):  
Quantum Wires ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
One Dimensional ◽  
Rashba Spin ◽  
Wet Chemical ◽  
Wet Chemical Etching ◽  
The One ◽  
Rashba Coupling

AbstractThe effect of Rashba spin-orbit coupling on the transport properties of InGaAs/InP quantum wire structures is investigated. The geometry of the wire structures was defined by selective wet chemical etching. For wires without a gate a clear beating pattern, due to the presence of the Rashba spin-orbit coupling, is observed for wires with a width down to 600 nm. For narrower wires no beating pattern is found. The experimental observations are explained by contribution of the Rashba spin-orbit coupling to the one-dimensional magnetosubbands. By depleting the one-dimensional conductor by means of a gate electrode the Rashba coupling strength could be controlled.

scholarly journals Exact solution of the one-dimensional Hubbard model with arbitrary boundary magnetic fields

2014 ◽  
Vol 879 ◽  
pp. 98-109 ◽  
Author(s):  
Yuan-Yuan Li ◽  
Junpeng Cao ◽  
Wen-Li Yang ◽  
Kangjie Shi ◽  
Yupeng Wang
Keyword(s):  
Exact Solution ◽  
Magnetic Fields ◽  
Hubbard Model ◽  
Arbitrary Boundary ◽  
One Dimensional ◽  
The One

scholarly journals Numerical Study of the One-Dimensional Spin-Orbit Coupled System with SU(2) ⊗SU(2) Symmetry

2000 ◽  
Vol 69 (1) ◽  
pp. 242-247 ◽  
Author(s):  
Yasufumi Yamashita ◽  
Naokazu Shibata ◽  
Kazuo Ueda
Keyword(s):  
Numerical Study ◽  
Coupled System ◽  
Spin Orbit ◽  
One Dimensional ◽  
The One

scholarly journals Emergence of a real-space symmetry axis in the magnetoresistance of the one-dimensional conductor Li0.9Mo6O17

2019 ◽  
Vol 5 (7) ◽  
pp. eaar8027 ◽  
Author(s):  
Jianming Lu ◽  
Xiaofeng Xu ◽  
M. Greenblatt ◽  
R. Jin ◽  
P. Tinnemans ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Symmetry Axis ◽  
Real Space ◽  
Negative Magnetoresistance ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
One Dimensional ◽  
Bulk Single Crystals ◽  
Space Symmetry ◽  
The One

We report on an emerging symmetry axis in the magnetoresistance of bulk single crystals of quasi–one-dimensional Li0.9Mo6O17 below Tmin = 25 K, the temperature at which the electrical resistivity experiences a minimum. Detailed angle-dependent magnetoresistance sweeps reveal that this symmetry axis is induced by the development of a negative magnetoresistance, which is suppressed only for magnetic fields oriented along the poles of the MoO6 octahedra that form the conducting chains. We show that this unusual negative magnetoresistance is consistent with the melting of dark excitons, composed of previously omitted orbitals within the t2g manifold that order below Tmin. The unveiled symmetry axis in directional magnetic fields not only provides evidence for the crystallization of these dark excitons but also sheds new light on the long-standing mystery of the metal-insulator transition in Li0.9Mo6O17.

scholarly journals Initial magnetic field distribution around high rectangular bus bars

2014 ◽  
Vol 11 (4) ◽  
pp. 523-534
Author(s):  
Grigore Cividjian
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Magnetic Fields ◽  
Analytical Solution ◽  
Exact Analytical Solution ◽  
One Dimensional ◽  
Transient Electromagnetic ◽  
The One ◽  
Two Sides ◽  
Initial Magnetic Field

The one-dimensional transient electromagnetic field in and around a system of two nonmagnetic homogenous rectangular high thin bars can be analytically evaluated if the ratio of average initial magnetic field on the two sides of thin bar, or of the ratio of initial magnetic fields in middle of the bar height is known. In this paper, using appropriate conformal mappings, an exact analytical solution for these ratios are proposed in the case of very thin bars. Obtained values are compared with FEM results for relatively thick bars.

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