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Fast long-wavelength exchange spin waves in partially-compensated Ga:YIG

Autor: Böttcher, T., Ruhwedel, M., Levchenko, K. O., Wang, Q., Chumak, H. L., Popov, M. A., Zavislyak, I. V., Dubs, C., Surzhenko, O., Hillebrands, B., Chumak, A. V., Pirro, P.

Spin waves in yttrium iron garnet (YIG) nano-structures attract increasing attention from the perspective of novel magnon-based data processing applications. For short wavelengths needed in small-scale devices, the group velocity is directly proporti

Externí odkaz: http://arxiv.org/abs/2112.11348

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Engineered magnetization and exchange stiffness in direct-write Co-Fe nanoelements

Autor: Bunyaev, S. A., Budinska, B., Sachser, R., Wang, Q., Levchenko, K., Knauer, S., Bondarenko, A. V., Urbanek, M., Guslienko, K. Y., Chumak, A. V., Huth, M., Kakazei, G. N., Dobrovolskiy, O. V.

Publikováno v: Appl. Phys. Lett. 118, 022408 (2021)

Media with engineered magnetization are essential building blocks in superconductivity, magnetism and magnon spintronics. However, the established thin-film and lithographic techniques insufficiently suit the realization of planar components with on-

Externí odkaz: http://arxiv.org/abs/2012.01481

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Novel Quaternary Dilute Magnetic Semiconductor (Ga,Mn)(Bi,As): Magnetic and Magneto-Transport Investigations

Autor: Levchenko, K., Andrearczyk, T., Domagala, J. Z., Sadowski, J., Kowalczyk, L., Szot, M., Kuna, R., Figielski, T., Wosinski, T.

Magnetic and magneto-transport properties of thin layers of the (Ga,Mn)(Bi,As) quaternary dilute magnetic semiconductor grown by the low-temperature molecular-beam epitaxy technique on GaAs substrates have been investigated. Ferromagnetic Curie tempe

Externí odkaz: http://arxiv.org/abs/1607.02569

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Effect of Misfit Strain in (Ga,Mn)(Bi,As) Epitaxial Layers on their Magnetic and Magneto-Transport Properties

Autor: Levchenko, K., Andrearczyk, T., Domagala, J. Z., Sadowski, J., Kowalczyk, L., Szot, M., Figielski, T., Wosinski, T.

Effect of misfit strain in the layers of (Ga,Mn)(Bi,As) quaternary diluted magnetic semiconductor, epitaxially grown on either GaAs substrate or (In,Ga)As buffer, on their magnetic and magneto-transport properties has been investigated. High-resoluti

Externí odkaz: http://arxiv.org/abs/1506.08718

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Magnetic and magneto-transport characterization of (Ga,Mn)(Bi,As) epitaxial layers

Autor: Levchenko, K., Andrearczyk, T., Domagala, J. Z., Wosinski, T., Figielski, T., Sadowski, J.

High-quality layers of the (Ga,Mn)(Bi,As) quaternary compound semiconductor have been grown by the low-temperature molecular-beam epitaxy technique. An effect of Bi incorporation into the (Ga,Mn)As ferromagnetic semiconductor and the post-growth anne

Externí odkaz: http://arxiv.org/abs/1406.4992

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A methodical approach to forming a digital ecosystem of adaptive tourism management

Autor: Levchenko, K. K.

The article presents the theoretical and methodological aspects of the creation of the ecosystem approach concept in the tourism management of in the new reality. The article is aimed at the tourism management digital ecosystem, presented in the form

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7db050b845d5243765bedd9d11029add

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IMPROVING THE TECHNOLOGY OF EXTRACTING COAL CONCENTRATE FROM FLY ASH FROM THERMAL POWER PLANTS.

Autor: Hlukhoveria, M., Mladetskyi, I., Levchenko, K., Borysovska, O.

Publikováno v: Scientific Bulletin of National Mining University; 2023, Issue 4, p33-39, 7p

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