06841 | Title: | The theory for describing features dimensional effects, phase diagrams and properties of nanomaterials based incipient ferroelectrics with magnetic and nonmagnetic impurities allowed to establish conditions for appearance and existence magnetoelectric p | | Type of product: | Issue of new types of products: methods, theories | | Description: | The existence of piezomagnetic, piezoelectric and the linear magnetoelectric effects dependent on the size of nanosystems in nanomaterials that do not have these properties in macroscopic systems belonging to one of the 90 magnetic classes. These piezoelectric lead to the appearance of the magnetic and electric fields depending on the size, which in turn induce electrical polarization and magnetization of nanoscale oxides such as MnO, FeO, CoO, MnS, EuO, PrO, Er2O3. The model of the effect of reducing the symmetry near the surface of nano can be applied to any tensor values 2nd, 3rd and higher ranks. | | Technical advantages: | The ferromagnetism at room temperature in nanoparticles and thin films of oxide materials, non-magnetic in volume was studied. This wonderful phenomenon called magnetism do, there only at sufficiently small size, smaller than 100 nm, where the role of the surface is paramount.
It was established that spin-dependent scattering of electrons in percolation transition at room temperature leads to a negative magnetoresistance ~ 2% at H = 2.5 кЕ, which is to the best published results. Prospective application - highly sensitive magnetic field sensors for the medical, automotive, reading information and other. | | The economic benefits: | The proposed theory allowed to establish conditions for the occurrence and existence of magnetoelectric phase at room temperature in nanoparticles and thin films of oxide materials, non-magnetic in volume, this effect can be used to record information and reading electric field of non-destructive magnetic field, and to create highly sensitive sensors of small magnetic fields in advanced medical devices | | The impact on the environment. Environment: | | | The stage of completion: | Report on R & D (OCD) | | Implementation: | not implemented | | Intellectual Property Rights: | | | Forms and conditions of transfer of products: | Collaborative research (ROC) |
068412а 068412d 068412е 068413b
068411.1 068411.2 068416.2 068416.3
|
| All results (R&D production) Project |
06841 06847 06848 06849 06850
|
