Spin Seebeck effect in W-type and Z-type hexagonal ferrite thin films

0566149 - FZÚ 2023 RIV US eng J - Journal Article
Soroka, Miroslav - Pashchenko, Mariia - Prokleška, J. - Buršík, J. - Knížek, Karel
Spin Seebeck effect in W-type and Z-type hexagonal ferrite thin films.
Journal of Applied Physics. Roč. 132, č. 24 (2022), č. článku 245101. ISSN 0021-8979. E-ISSN 1089-7550
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA19-06433S; GA MŠMT(CZ) LM2018096
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : spin Seebeck effect * hexagonal ferrite * thin film
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.2, year: 2022
Method of publishing: Limited access
https://doi.org/10.1063/5.0124632

The spin Seebeck effect was studied in thin films of hexagonal ferrites of W-type SrCo2-xZnxFe16O27 with x = 0, 1, and 2 and Z-type with the composition Sr3Co2Fe24O41. The present data were compared with the previously obtained data on Y-type Ba2Zn2-xCoxFe12O22 with x = 0 and 2. Our work showed that the SSE signal can also be generated in materials with complicated crystal and magnetic structures. Hexaferrites with the magnetic easy plane were selected except for uniaxial W-type with x = 2, for which the highest saturated SSE 0.144 μV/K was observed, however, magnetic field above 1 T must be applied to achieve saturation. For low field application, hexaferrites with easy magnetization in ab-plane are more suitable, namely, Y-type with x = 2 or W-type with x = 1.
Permanent Link: https://hdl.handle.net/11104/0337576