The visible magneto-optical response of RE 1-x A x MnO 3 manganites: relationship with the charge component of the material.

Autor:	Samoshkina Y; Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia., Petrov D; Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia., Telegin A; M.N. Mikheev Institute of Metal Physics UB of RAS, 620108 Ekaterinburg, Russia., Neznakhin D; Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg 620002, Russia., Kaul A; Moscow state University, Moscow 119991, Russia.
Jazyk:	angličtina
Zdroj:	Journal of physics. Condensed matter : an Institute of Physics journal [J Phys Condens Matter] 2024 Aug 28; Vol. 36 (47). Date of Electronic Publication: 2024 Aug 28.
DOI:	10.1088/1361-648X/ad6e48
Abstrakt:	Magnetic circular dichroism (MCD) spectroscopy for manganite films of various compositions and morphologies has been studied in the range of 1.2-3.7 eV. The primary focus was on the temperature behavior of the MCD spectra, as well as the magnetization and resistivity of the films. The data obtained were analyzed in comparison with magneto-optical spectroscopy of the Kerr rotation (KR) on both single crystal and thin film of manganites. It has been established that the MCD response at 2.3 eV is typical for manganites transitioning into a conducting state. Consequently, it reflects a change in the band structure of the material. This response is also observed in the KR spectrum of manganites in the range 2.3-2.6 eV below the metal-insulator transition temperature. These findings complement the understanding of the electronic structure of manganites in general. Moreover, they also provide a basis for the search for new functional materials. (© 2024 IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.)
Databáze:	MEDLINE
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