Magneto-optical properties of textured La$_{2/3}$Sr$_{1/3}$MnO$_3$ thin films integrated on silicon via a Ca$_2$Nb$_3$O$_{10}$ nanosheet layer

Tomáš Maleček; Guillaume Agnus; Thomas Maroutian; Lukáš Horák; Petr Machovec; Valérie Demange; Aleš Melzer; Jan Prokleška; Philippe Lecoeur; Martin Veis

arXiv · 2310.16456

Magneto-optical properties of textured La$_{2/3}$Sr$_{1/3}$MnO$_3$ thin films integrated on silicon via a Ca$_2$Nb$_3$O$_{10}$ nanosheet layer

Tomáš Maleček·Guillaume Agnus·Thomas Maroutian·Lukáš Horák·Petr Machovec·Valérie Demange·Aleš Melzer·Jan Prokleška·Philippe Lecoeur·Martin Veis

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Abstract

We demonstrate the possibility of growing textured La$_{2/3}$Sr$_{1/3}$MnO$_3$ (LSMO) thin films on silicon substrates with magneto-optical and optical properties comparable to high-quality epitaxial layers grown on bulk SrTiO$_3$ (STO). The pulsed laser deposition growth of LSMO is achieved by a two-dimensional nanosheet (NS) seed layer of Ca$_2$Nb$_3$O$_{10}$ (CNO) inducing epitaxial stabilization of LSMO films. The resulting layers possess a higher Curie temperature and a lower overall magnetization than samples of LSMO on STO. Spectra of the full permittivity tensor were calculated from optical and magneto-optical measurements. Spectral dependencies of both the diagonal and off-diagonal elements share many similarities between the LSMO/NS/Si and LSMO/STO samples. These similarities indicate comparable electronic structures of the layers and demonstrate comparable optical quality of textured LSMO on NS/Si and epitaxial LSMO on STO.

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Tomáš Maleček, Guillaume Agnus, Thomas Maroutian, Lukáš Horák, Petr Machovec, Valérie Demange, Aleš Melzer, Jan Prokleška, Philippe Lecoeur, Martin Veis. 2023-10-25. Magneto-optical properties of textured La$_{2/3}$Sr$_{1/3}$MnO$_3$ thin films integrated on silicon via a Ca$_2$Nb$_3$O$_{10}$ nanosheet layer. https://arxiv.org/abs/2310.16456

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