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Magnetic and electronic properties of (LaMnO$$_3$$)$$_5$$(SrMnO$$_3$$)$$_5$$ superlattice revealed by resonant soft X-ray scattering

Kubota, Masato; Yamada, Hiroyuki*; Nakao, Hironori*; Okamoto, Jun*; Yamasaki, Yuichi*; Sawa, Akihito*; Murakami, Yoichi*

We have investigated the magnetic and electronic properties of (LaMnO$$_3$$)$$_5$$(SrMnO$$_3$$)$$_5$$ superlattice fabricated on a lattice-matched La$$_{0.3}$$Sr$$_{0.7}$$Al$$_{0.65}$$Ta$$_{0.35}$$O$$_{3}$$ substrate by resonant soft X-ray scattering. The temperature- and $mbox{boldmath $Q$}$-dependences of the energy spectra were measured around the Mn $$L_{2,3}$$-absorption edges. We successfully observed not only a signal that reflects the valence modulation of Mn ion, but also a magnetic signal reflecting ferromagnetism. Compared with the calculated models, we concluded that the ferromagnetism mainly originates from the magnetic moments at the Mn sites sandwiched by LaO layers.



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Category:Physics, Applied



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