BiMnPO5 with ferromagnetic Mn2+–(μ-O)2–Mn2+ units: a model for magnetic exchange in edge-linked Mn2+O6 octahedra

an appropriate model for exchange rate predictability in iran: comparing potential forecastability

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Local distortions in multiferroic BiMnO3 as a function of doping.

The structure of doped BiMnO3 was studied using synchrotron x-ray powder diffraction. The dopants included isovalent magnetic and non-magnetic ions in the magnetic Mn sublattice (BiMn1-xMx O3 with M=Cr, Fe and Ga), isovalent ions in the Bi sublattice (Bi0.9La0.1MnO3) and isovalent self-dopants (Bi0.95MnO2.925). The results indicate that at low doping levels, the orbitally ordered structure (C2/...

Magnetic and Transport Properties of the Kondo Lattice Model with Ferromagnetic Exchange Coupling

The Kondo lattice model with Hund’s ferromagnetic spin coupling is investigated as a microscopic model of the perovskite-type 3d manganese oxide R1−xAxMnO3 where R and A are rare earth element and alkaline earth element, respectively. We take the classical spin limit S = ∞ for the simplicity of the calculation, since the quantum exchange process seems to be irrelevant in the high temperature pa...

Magnetic proximity effect and interlayer exchange coupling of ferromagnetic/topological insulator/ferromagnetic trilayer

Mingda Li,1,2,* Wenping Cui,3 Jin Yu,1,4 Zuyang Dai,5 Zhe Wang,1 Ferhat Katmis,2,6 Wanlin Guo,4 and Jagadeesh Moodera2,6,† 1Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA 2Fracsis Bitter Magnetic Lab, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, ...

Antiferromagnetic/ferromagnetic nanostructures for multidigit storage units