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Mostrando ítems 21-30 de 1962
EPR Measurements of Weak Exchange Interactions Coupling Unpaired Spins in Model Compounds
(Springer, 2007-12)
I review electron paramagnetic resonance (EPR) measurements performed to evaluate very weak exchange interactions (defined as Hex(i, j) = -JijSiSj, with 10-3 cm-1<|Jij|<1 cm-1) between unpaired spins, transmitted through ...
Rho-nucleon tensor coupling and charge-exchange resonances
(Elsevier B.V., 2014)
Critical thickness investigation of magnetic properties in exchange-coupled bilayers
(American Physical Society, 2011-06-24)
Spin excitations of weakly coupled magnetic atoms
(American Physical Society, 2015-04)
Atheoretical description of the measured differential conductance through magnetic atoms on a Cu2N/Cu(100) substrate is presented [Otte et al., Phys. Rev. Lett. 103, 107203 (2009)]. In particular, we analyze the case of ...
DFT broken-symmetry exchange couplings calculation in a 1D chain of bridged iron basic carboxylates
(Pergamon-Elsevier Science Ltd, 2009-06)
DFT broken-symmetry calculations at the B3LYP level were carried out to evaluate the exchange coupling constants defined by the Heisenberg-Dirac-van Vleck spin Hamiltonian (HDvV), Ĥ = -2JŜaŜb, in a 1D chain of iron basic ...
Thickness dependence of exchange coupling in epitaxial Fe 3 O 4/ CoFe 2 O 4 soft/hard magnetic bilayers
(American Physical Society, 2016-08)
Epitaxial magnetic heterostructures of (soft-)Fe3O4/(hard-)CoFe2O4(001) have been fabricated with a varying thicknesses of soft ferrite from 5 to 25 nm. We report a change in the regime of magnetic interaction between the ...
Theoretical study of the exchange Coupling in a Ni12 single-molecule magnet
(2006)
The exchange interactions in a Ni12 complex have been studied by using theoretical methods based on density functional theory. The calculated J values reproduce correctly the S = 12 ground state of this system found ...
Determination of heisenberg exchange coupling constants in clusters with magnetic sites: A local spin approach
(John Wiley & Sons Inc, 2014-04)
This work studies the ability of the two-center local spin quantities, provided by the partitioning of the expectation value of the spin-squared operator math formula corresponding to N-electron systems, for determining ...
Evidence of exchange coupling in -MnAlC/FeCo system
(Journal of Magnetism and Magnetic Materials, 2019)
Determination of exchange coupling constants in linear polyradicals by means of local spins
(Springer, 2017-03)
This work extends the previously reported studies (Oliva et al. in Theor Chem Acc 132:1329, 2013, Theor Chem Acc 134:9, 2015) on electronic structures of simple polyhedral polyradicals constructed from s = ½ closo-carborane ...