scholarly journals Role of spin-orbit coupling and evolution of the electronic structure ofWTe2under an external magnetic field

2015 ◽  
Vol 92 (12) ◽  
Author(s):  
D. Rhodes ◽  
S. Das ◽  
Q. R. Zhang ◽  
B. Zeng ◽  
N. R. Pradhan ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electronic Structure ◽  
External Magnetic Field ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit

The role of spin-orbit coupling in the electronic structure of iron-based superconductors (Phys. Status Solidi B 1/2017)

2017 ◽  
Vol 254 (1) ◽  
Author(s):  
Sergey Borisenko ◽  
Daniil Evtushinsky ◽  
Zhonghao Liu ◽  
Igor Morozov ◽  
Rhea Kappenberger ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Iron Based Superconductors ◽  
Iron Based

Influence of magnetic field and Rashba spin–orbit coupling on strong-coupling magnetopolarons in quantum disks

2014 ◽  
Vol 28 (27) ◽  
pp. 1450185
Author(s):  
Wei Xin ◽  
Chao Han ◽  
Eerdunchaolu
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Interaction Energy ◽  
Ground State ◽  
State Interaction ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Phonon Interaction ◽  
Rashba Spin

On the basis of Lee–Low–Pines (LLP) unitary transformation, the influence of external magnetic field, Rashba spin–orbit coupling and quantum size effect on the ground-state interaction energy of strong-coupling magnetopolarons in quantum disks (QDs) is studied by using the Tokuda improved linear combine operator method. The results show that the ground-state interaction energy of magnetopolarons consists of four parts: the energy caused by the confinement potential of QDs, interaction energy between the electron and external magnetic field, electron and longitudinal-optical (LO) phonon interaction energy and additional term of Rashba effect originating from phonons. The electron–LO phonon interaction energy Ee- ph and additional term of Rashba effect are always negative; the absolute value |Ee- ph | increases with increasing transverse confinement strength ω0, cyclotron frequency of external magnetic field ωc and electron–LO phonon coupling strength α, but decreases with increasing the thickness of QDs L; the state properties of magnetopolarons are closely linked with the sign of the ground-state interaction energy of magnetopolarons E int and change of E int with ωc, ω0, α and L. In addition, the vibration frequency of magnetopolarons λ increases with increasing ωc, ω0 and α, but decreases with increasing L. For the ground state of magnetopolarons in QDs, the electron–LO phonon interaction plays a significant role, meanwhile, the influence of Rashba spin–orbit coupling effect cannot be ignored.

scholarly journals Flat-band conditions influenced by spin-orbit interaction in the presence of external magnetic field

2021 ◽  
Vol 11 (5) ◽  
pp. 171-179
Author(s):  
Nóra Kucska ◽  
Zsolt Gulácsi
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Orbit Interaction ◽  
Flat Band ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Many Body ◽  
Spin Orbit Interaction ◽  
Coupling Strengths

We deduct conditions for the Hamiltonian coupling strengths necessary to achieve flat bands in polymers (i.e. a pentagon chain) considering many-body spin-orbit coupling and external magnetic field. We consider itinerant electrons on pentagon chains with first neighbour hoppings, on-site electron potentials and spin-flip first neighbour hoppings representing the Rashba type spin-orbit interaction (SOI). The external magnetic field is also present in the system via the Peierls phase factors. The band structure is obtained by solving the secular equation of the diagonalized one particle part of the Hamiltonian in k-space (momentum-space). The flat band conditions make the bands k-independent, providing a highly a degenerate state, which gives broad possibilities for applications. In our work we have shown how the SOI is able to relax the strict, rigid flat band conditions given by the Hamiltonian coupling strengths. The role of the external magnetic field was also investigated.

scholarly journals Role of Spin-Orbit Coupling and Hybridization Effects in the Electronic Structure of Ultrathin Bi Films

2006 ◽  
Vol 97 (14) ◽  
Author(s):  
T. Hirahara ◽  
T. Nagao ◽  
I. Matsuda ◽  
G. Bihlmayer ◽  
E. V. Chulkov ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit

Mesoscopic Fano effect modulated by Rashba spin–orbit coupling and external magnetic field

2007 ◽  
Vol 365 (3) ◽  
pp. 248-252 ◽  
Author(s):  
R.Y. Yuan ◽  
R.Z. Wang ◽  
Z.Q. Duan ◽  
X.M. Song ◽  
B. Wang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Fano Effect ◽  
Rashba Spin
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