scholarly journals Ultrafast spin exchange-coupling torque via photo-excited charge-transfer processes

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
X. Ma ◽  
F. Fang ◽  
Q. Li ◽  
J. Zhu ◽  
Y. Yang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Exchange Coupling ◽  
Spin Exchange ◽  
Transfer Processes

SUPERCONDUCTIVITY AND FERROMAGNETISM IN HYBRID SYSTEMS

2003 ◽  
Vol 17 (04n06) ◽  
pp. 661-667
Author(s):  
MARIO CUOCO ◽  
CANIO NOCE
Keyword(s):  
Phase Diagram ◽  
Charge Transfer ◽  
Single Particle ◽  
Normal State ◽  
Exchange Coupling ◽  
Spin Exchange ◽  
Critical Value ◽  
Particle Charge ◽  
Spin Singlet

Interplay of superconductivity (SC) and ferromagnetism (FM) is studied in a system constituted of alternated planes with FM metallicity and spin singlet SC, respectively. The phase diagram of the SC, FM, and normal state is obtained as the amplitude of the single particle charge transfer between the planes is varied. One important finding is the appearance of a region with coexistence of SC and FM at small values of the interlayer hopping amplitude, though the FM exchange coupling is below the critical value indicated by the Stoner criterium. We consider the role of the direct spin exchange coupling with respect to the degree of hybridization between FM and SC fermions and how those mechanisms may destroy the coexisting phase. Relation to exotic superconductors recently discovered, as the ruthenate-cuprate compound of the class RuSr 2 GdCu 2 O 8, is also presented.

Electro-active pi-Conjugated Oligomers and Polymers A Molecular Picture of Charge-Transfer Processes

2018 ◽  
Vol 15 (4) ◽  
pp. 388 ◽  
Author(s):  
D. Beljonne ◽  
J. Cornil ◽  
J. L. Brèdas ◽  
V. Coropceanu
Keyword(s):  
Charge Transfer ◽  
Semiconductor Devices ◽  
Conjugated Oligomers ◽  
Transfer Processes ◽  
Pi Conjugated ◽  
Information And Communication ◽  
Inorganic Semiconductor ◽  
Molecular Picture

<span>Inorganic semiconductor devices such as transistors have been instrumental in shaping the development of our society of information and communication. Recently, the electronics and photonics technologies have opened their materials base to organics, in particular p-conjugated oligomers and polymers. The goal with organics-based devices is not necessarily to attain or exceed the level of performance of inorganic semiconductor technologies...</span>

Charge-Transfer Processes in Dye-Sensitized NiO Solar Cells

2008 ◽  
Vol 112 (41) ◽  
pp. 16134-16139 ◽  
Author(s):  
Shogo Mori ◽  
Shunya Fukuda ◽  
Seiichi Sumikura ◽  
Yoshihiro Takeda ◽  
Yoshiaki Tamaki ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Dye Sensitized ◽  
Transfer Processes

scholarly journals Horizontal versus vertical charge and energy transfer in hybrid assemblies of semiconductor nanoparticles

2012 ◽  
Vol 3 ◽  
pp. 629-636 ◽  
Author(s):  
Gilad Gotesman ◽  
Rahamim Guliamov ◽  
Ron Naaman
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Horizontal Plane ◽  
Quartz Substrate ◽  
Vertical Direction ◽  
Time Resolved ◽  
Transfer Processes ◽  
Donor And Acceptor ◽  
Hybrid Assemblies ◽  
Time Resolved Photoluminescence

We studied the photoluminescence and time-resolved photoluminescence from self-assembled bilayers of donor and acceptor nanoparticles (NPs) adsorbed on a quartz substrate through organic linkers. Charge and energy transfer processes within the assemblies were investigated as a function of the length of the dithiolated linker (DT) between the donors and acceptors. We found an unusual linker-length-dependency in the emission of the donors. This dependency may be explained by charge and energy transfer processes in the vertical direction (from the donors to the acceptors) that depend strongly on charge transfer processes occurring in the horizontal plane (within the monolayer of the acceptor), namely, parallel to the substrate.

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