scholarly journals Spin-orbit coupling induced magnetic field effects in electron-transfer reactions with excited triplets: the role of triplet exciplexes and radical pairs in geminate recombination

1991 ◽  
Vol 95 (5) ◽  
pp. 1880-1890 ◽  
Author(s):  
Ulrich E. Steiner ◽  
Werner Haas
Keyword(s):  
Magnetic Field ◽  
Electron Transfer ◽  
Transfer Reactions ◽  
Geminate Recombination ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Magnetic Field Effects ◽  
Induced Magnetic Field ◽  
Radical Pairs

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 Spin-orbit coupling and magnetic field effects in photoredox reactions of ruthenium(II) complexes

1989 ◽  
Vol 93 (13) ◽  
pp. 5147-5154 ◽  
Author(s):  
Ulrich E. Steiner ◽  
Hans Joachim Wolff ◽  
Thomas Ulrich ◽  
Takeshi Ohno
Keyword(s):  
Magnetic Field ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Magnetic Field Effects ◽  
Field Effects
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