Exchange coupling in quantum rings and wires in the Wigner-crystal limit

2005 ◽  
Vol 131 ◽  
pp. 217-220
Author(s):  
M. M. Fogler ◽  
E. Pivovarov
Keyword(s):  
Exchange Coupling ◽  
Wigner Crystal ◽  
Quantum Rings

scholarly journals Exchange coupling in a one-dimensional Wigner crystal

2005 ◽  
Vol 131 ◽  
pp. 233-234
Author(s):  
A. D. Klironomos ◽  
R. R. Ramazashvili ◽  
K. A. Matveev
Keyword(s):  
Exchange Coupling ◽  
Wigner Crystal ◽  
One Dimensional

scholarly journals Exchange coupling in a one-dimensional Wigner crystal

2005 ◽  
Vol 72 (19) ◽  
Author(s):  
A. D. Klironomos ◽  
R. R. Ramazashvili ◽  
K. A. Matveev
Keyword(s):  
Exchange Coupling ◽  
Wigner Crystal ◽  
One Dimensional

scholarly journals Spin exchange in quantum rings and wires in the Wigner-crystal limit

2005 ◽  
Vol 18 (1) ◽  
pp. L7-L13 ◽  
Author(s):  
Michael M Fogler ◽  
Eugene Pivovarov
Keyword(s):  
Spin Exchange ◽  
Wigner Crystal ◽  
Quantum Rings

Assessing the Calculation of Exchange Coupling Constants and Spin Crossover Gaps Using the Approximate Projection Model to Improve Density Function Calculations

2019 ◽  
Author(s):  
Xianghai Sheng ◽  
Lee Thompson ◽  
Hrant Hratchian
Keyword(s):  
Density Functional Theory ◽  
Exchange Coupling ◽  
Density Functional ◽  
Spin Crossover ◽  
Coupling Constants ◽  
Spin Projection ◽  
Coupling Constant ◽  
Projection Model ◽  
Functional Theory

This work evaluates the quality of exchange coupling constant and spin crossover gap calculations using density functional theory corrected by the Approximate Projection model. Results show that improvements using the Approximate Projection model range from modest to significant. This study demonstrates that, at least for the class of systems examined here, spin-projection generally improves the quality of density functional theory calculations of J-coupling constants and spin crossover gaps. Furthermore, it is shown that spin-projection can be important for both geometry optimization and energy evaluations. The Approximate Project model provides an affordable and practical approach for effectively correcting spin-contamination errors in molecular exchange coupling constant and spin crossover gap calculations.

The influence of interlayer exchange coupling on magnetic ordering in Fe/V superlattices

2009 ◽  
Vol 321 (9) ◽  
pp. 1214-1220 ◽  
Author(s):  
M. Marcellini ◽  
M. Pärnaste ◽  
B. Hjörvarsson ◽  
G. Nowak ◽  
H. Zabel
Keyword(s):  
Exchange Coupling ◽  
Magnetic Ordering ◽  
Interlayer Exchange Coupling ◽  
Interlayer Exchange

Exchange Coupling of Transition-Metal Ions through Hydrogen Bonding:  A Theoretical Investigation

2002 ◽  
Vol 124 (18) ◽  
pp. 5197-5205 ◽  
Author(s):  
Cédric Desplanches ◽  
Eliseo Ruiz ◽  
Antonio Rodríguez-Fortea ◽  
Santiago Alvarez
Keyword(s):  
Hydrogen Bonding ◽  
Transition Metal ◽  
Metal Ions ◽  
Theoretical Investigation ◽  
Exchange Coupling ◽  
Transition Metal Ions
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