A Binuclear Copper(II) Complex with Diphenoxido-bridges: Synthesis, Characterisation, Crystal Structure and Predicting the Magnetic Coupling Constant

2016 ◽  
Vol 40 (2) ◽  
pp. 114-119 ◽  
Author(s):  
Asmar Mashhun ◽  
Seyed Amir Zarei ◽  
Mohammad Piltan ◽  
Sylviane Chevreux ◽  
Emmanuel Guillon
Keyword(s):  
Crystal Structure ◽  
Magnetic Coupling ◽  
Coupling Constant ◽  
Binuclear Copper ◽  
Magnetic Coupling Constant

Intra-molecular magnetic exchange interaction in the tripyridinium bis[tetrachloroferrate(iii)] chloride molecular magnet: a broken symmetry-DFT study

2015 ◽  
Vol 17 (29) ◽  
pp. 19119-19125 ◽  
Author(s):  
F. Baniasadi ◽  
M. M. Tehranchi ◽  
M. B. Fathi ◽  
N. Safari ◽  
V. Amani
Keyword(s):  
Magnetic Coupling ◽  
Dft Method ◽  
Broken Symmetry ◽  
Molecular Magnet ◽  
Coupling Constant ◽  
Magnetic Exchange Interaction ◽  
Magnetic Exchange ◽  
Electronic Spin ◽  
Density Maps ◽  
Magnetic Coupling Constant

A superexchange interaction path between Fe–Fe in (FeCl4)2(py·H)3Cl is illustrated making use of electronic spin density maps (ESDM) and the magnetic coupling constant is calculated using the BS-DFT method as JFe–Fe = 13.2062 kJ mol−1.

Highly efficient perturbative + variational strategy based on orthogonal valence bond theory for the evaluation of magnetic coupling constants. Application to the trinuclear Cu(ii) site of multicopper oxidases

2016 ◽  
Vol 18 (27) ◽  
pp. 18365-18380 ◽  
Author(s):  
Lorenzo Tenti ◽  
Daniel Maynau ◽  
Celestino Angeli ◽  
Carmen J. Calzado
Keyword(s):  
Low Cost ◽  
Valence Bond ◽  
Magnetic Coupling ◽  
Coupling Constants ◽  
Coupling Constant ◽  
Multicopper Oxidases ◽  
Valence Bond Theory ◽  
Bond Theory ◽  
Rational Evaluation ◽  
Magnetic Coupling Constant

A new perturbative + variational strategy: a low-cost, quantitative and rational evaluation of the magnetic coupling constant in complex systems.

Change in torque transmitted by a standard magnetic coupling with the same overall dimensions, depending on the grade of permanent magnet and its dimensions

2021 ◽  
pp. 30-34
Author(s):  
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Magnetic Coupling ◽  
Coupling Constant ◽  
Air Gaps ◽  
Neodymium Iron Boron ◽  
Magnetic Couplings ◽  
Magnetic Coupling Constant

The possibility of changing the torque transmitted by a cylindrical magnetic coupling, depending on the brand of a high-coercive permanent magnet — neodymium— iron—boron, samarium—cobalt is considered. Using the example of standard magnetic couplings with a diameter of 133 mm for magnets and air gaps between the half couplings for magnets of 5 and 7 mm, the change in the torque transmitted by the magnetic coupling without changing its overall dimensions is shown. Varying the torque of the magnetic coupling is possible by changing the shape, size and grade of permanent magnets while keeping the same number of magnets in each of the half-couplings of the magnetic coupling constant. Keywords; magnetic coupling, permanent magnet, number of magnets. [email protected]

scholarly journals Crystal Structure Dependence of Antiferromagnetic Coupling in FE/SI Multilayers

1995 ◽  
Vol 384 ◽  
Author(s):  
R. P. Michel ◽  
A. Chaiken ◽  
M. A. Wall
Keyword(s):  
Crystal Structure ◽  
Magnetic Coupling ◽  
Antiferromagnetic Coupling ◽  
Temperature Dependent ◽  
Layered Systems ◽  
Metal Insulator ◽  
Structure Dependence ◽  
Metallic Conductor ◽  
Metal Metal ◽  
Cscl Structure

ABSTRACTRecent reports of temperature dependent antiferromagnetic coupling in Fe/Si multilayers have motivated the generalization of models describing magnetic coupling in metal/metal multilayers to metal/insulator and metal/semiconductor layered systems. Interesting dependence of the magnetic properties on layer thickness and temperature are predicted. We report measurements that show the antiferromagnetic (AF) coupling observed in Fe/Si multilayers is strongly dependent on the crystalline coherence of the silicide interlayer. Electron diffraction images show the silicide interlayer has a CsCl structure. It is not clear at this time whether the interlayer is a poor metallic conductor or a semiconductor so the relevance of generalized coupling theories is unclear.

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