Bi2Se3 topological insulator at the 2D-limit: role of halide-doping on Dirac point

2018 ◽  
Vol 20 (26) ◽  
pp. 17934-17941 ◽  
Author(s):  
Salma Khatun ◽  
Hrishikesh Bhunia ◽  
Amlan J. Pal
Keyword(s):  
Topological Insulator ◽  
Dirac Point ◽  
Coupling Parameter ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit

The Dirac point of 2D Bi2Se3 could be tuned by halogen substitution due to a change in the spin–orbit coupling parameter.

scholarly journals Dzyaloshinskii–Moriya interaction in noncentrosymmetric superlattices

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Woo Seung Ham ◽  
Abdul-Muizz Pradipto ◽  
Kay Yakushiji ◽  
Kwangsu Kim ◽  
Sonny H. Rhim ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Degrees Of Freedom ◽  
Orbit Coupling ◽  
Inversion Symmetry ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Band Formation ◽  
Research Activities ◽  
Moriya Interaction

AbstractDzyaloshinskii–Moriya interaction (DMI) is considered as one of the most important energies for specific chiral textures such as magnetic skyrmions. The keys of generating DMI are the absence of structural inversion symmetry and exchange energy with spin–orbit coupling. Therefore, a vast majority of research activities about DMI are mainly limited to heavy metal/ferromagnet bilayer systems, only focusing on their interfaces. Here, we report an asymmetric band formation in a superlattices (SL) which arises from inversion symmetry breaking in stacking order of atomic layers, implying the role of bulk-like contribution. Such bulk DMI is more than 300% larger than simple sum of interfacial contribution. Moreover, the asymmetric band is largely affected by strong spin–orbit coupling, showing crucial role of a heavy metal even in the non-interfacial origin of DMI. Our work provides more degrees of freedom to design chiral magnets for spintronics applications.

The role of the spin-orbit coupling strength in the MO effects of magnetic insulators

2001 ◽  
Vol 37 (4) ◽  
pp. 2411-2413 ◽  
Author(s):  
You Xu ◽  
Jiehui Yang ◽  
Xijuan Zhang ◽  
Fang Zhang ◽  
M. Guillot
Keyword(s):  
Coupling Strength ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Magnetic Insulators

Electronic and optical correlation effects in bulk gold: Role of spin–orbit coupling

2019 ◽  
Vol 18 ◽  
pp. e00360
Author(s):  
H.A. Alluhaybi ◽  
S.K. Ghoshal ◽  
B.O. Alsobhi ◽  
W.N. Wan Shamsuri
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Correlation Effects ◽  
Optical Correlation ◽  
Bulk Gold

Role of structural elements of chloronaphthalene molecules in spin-orbit coupling: Phosphorescence

2010 ◽  
Vol 108 (3) ◽  
pp. 486-494 ◽  
Author(s):  
E. A. Gastilovich ◽  
V. G. Klimenko ◽  
N. V. Korol’kova ◽  
R. N. Nurmukhametov
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Structural Elements

scholarly journals The role of spin–orbit effects in the mobility of N+ ions moving in a helium gas at low temperature

2020 ◽  
Vol 74 (7) ◽  
Author(s):  
Lamia Aïssaoui ◽  
Peter J. Knowles ◽  
Moncef Bouledroua
Keyword(s):  
Low Temperature ◽  
Cross Sections ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Temperature Model ◽  
Helium Gas ◽  
Spin Orbit Interactions ◽  
High Level

Abstract The mobility of N+ ions in ground-state helium gas at very low temperature is examined with explicit inclusion of spin–orbit coupling effects. The ionic kinetics is treated theoretically with the three-temperature model. The N+–He interaction potentials, including spin–orbit coupling, are determined using high-level ab initio calculations. Then, the classical and quantal transport cross sections, both needed in the computation of the mobility coefficients, are calculated in terms of the collisional energy of the N+–He system. The numerical results, at temperature 4.3 K, show the spin–orbit interactions have negligible effect on the mobility coefficients. Graphical abstract

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