Magnetic and electronic properties of (LaMnO_3)_5(SrMnO_3)_5 superlattice revealed by resonant soft X-ray scattering

Masato Kubota; Hiroyuki Yamada; Hironori Nakao; Jun Okamoto; Yuichi Yamasaki; Akihito Sawa; Youichi Murakami

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Magnetic and electronic properties of (LaMnO_3)_5(SrMnO_3)_5 superlattice revealed by resonant soft X-ray scattering

机译：共振软X射线散射揭示（LaMnO_3）_5（SrMnO_3）_5超晶格的磁性和电子性质

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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 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.

机译：我们已经研究了通过共振软X射线散射在晶格匹配的La_（0.3）Sr_（0.7）Al_（0.65）Ta_（0.35）O_3衬底上制造的（LaMnO_3）_5（SrMnO_3）_5超晶格的磁性和电子性质。在Mn L_（2,3）吸收边缘附近测量了能量谱的温度和Q依赖性。我们不仅成功地观察到了反映Mn离子价态调制的信号，而且还观察到了反映铁磁性的磁信号。与计算模型相比，我们得出结论，铁磁性主要来自LaO层夹在Mn位置的磁矩。

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来源
《Japanese journal of applied physics》 |2014年第5s1期|05FH07.1-05FH07.5|共5页
作者
Masato Kubota; Hiroyuki Yamada; Hironori Nakao; Jun Okamoto; Yuichi Yamasaki; Akihito Sawa; Youichi Murakami;
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Quantum Beam Science Directorate, Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan;

National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan,JST, PRESTO, Kawaguchi, Saitama 332-0012, Japan;

Condensed Matter Research Center and Photon Factory, IMSS, KEK, Tsukuba, Ibaraki 305-0801, Japan;

Condensed Matter Research Center and Photon Factory, IMSS, KEK, Tsukuba, Ibaraki 305-0801, Japan;

Condensed Matter Research Center and Photon Factory, IMSS, KEK, Tsukuba, Ibaraki 305-0801, Japan;

National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan;

Condensed Matter Research Center and Photon Factory, IMSS, KEK, Tsukuba, Ibaraki 305-0801, Japan;

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Magnetic and electronic properties of (LaMnO_3)_5(SrMnO_3)_5 superlattice revealed by resonant soft X-ray scattering

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