Experimental Elucidation: Microscopic Mechanism of Resonant X-Ray Scattering in Manganite Films

作者: Hiroyuki Ohsumi , Yoichi Murakami , Takashi Kiyama , Hironori Nakao , Masato Kubota

DOI: 10.1143/JPSJ.72.1006

关键词: Condensed matter physicsJahn–Teller effectPerovskite (structure)ManganiteMaterials scienceElectronElectronic band structureScatteringBragg's lawAtomic orbitalGeneral Physics and Astronomy

摘要: Resonant X-ray scattering experiments have been performed on perovskite manganite La 0.5 Sr MnO 3 thin films, which are grown three distinct substrates with a coherent epitaxial strain and forced ferro -type orbital ordering of Mn d orbitals. Using an interference technique, we successfully observed the resonant signal from system having also revealed energy scheme 4 p bands. For system, present results evidence that originates band structure effect due to Jahn–Teller distortion 6 octahedron, not Coulomb interaction between electrons.

参考文章(15)
Y. Murakami, H. Kawada, H. Kawata, M. Tanaka, T. Arima, Y. Moritomo, Y. Tokura, Direct Observation of Charge and Orbital Ordering in La 0.5 Sr 1.5 MnO 4 Physical Review Letters. ,vol. 80, pp. 1932- 1935 ,(1998) , 10.1103/PHYSREVLETT.80.1932
Maurizio Benfatto, Yves Joly, Calogero R. Natoli, Critical Reexamination of the Experimental Evidence of Orbital Ordering in LaMnO 3 and La 0.5 Sr 1.5 MnO 4 Physical Review Letters. ,vol. 83, pp. 636- 639 ,(1999) , 10.1103/PHYSREVLETT.83.636
K. Hirota, N. Oumi, T. Matsumura, H. Nakao, Y. Wakabayashi, Y. Murakami, Y. Endoh, Direct observation of antiferroquadrupolar ordering: resonant X-Ray scattering study of DyB2C2 Physical Review Letters. ,vol. 84, pp. 2706- 2709 ,(2000) , 10.1103/PHYSREVLETT.84.2706
Yoshinori Konishi, Zhong Fang, Makoto Izumi, Takashi Manako, Masahiro Kasai, Hideki Kuwahara, Masashi Kawasaki, Kiyoyuki Terakura, Yoshinori Tokura, Orbital-State-Mediated Phase-Control of Manganites Journal of the Physical Society of Japan. ,vol. 68, pp. 3790- 3793 ,(1999) , 10.1143/JPSJ.68.3790
Manabu Takahashi, Jun-ichi Igarashi, Peter Fulde, Anomalous X-Ray Scattering in LaMnO3. Journal of the Physical Society of Japan. ,vol. 68, pp. 2530- 2533 ,(1999) , 10.1143/JPSJ.68.2530
Sumio Ishihara, Sadamichi Maekawa, Polarization dependence of anomalous x-ray scattering in orbital-ordered manganites Physical Review B. ,vol. 58, pp. 13442- 13451 ,(1998) , 10.1103/PHYSREVB.58.13442
I. S. Elfimov, V. I. Anisimov, G. A. Sawatzky, ORBITAL ORDERING, JAHN-TELLER DISTORTION, AND ANOMALOUS X-RAY SCATTERING IN MANGANATES Physical Review Letters. ,vol. 82, pp. 4264- 4267 ,(1999) , 10.1103/PHYSREVLETT.82.4264
Hironori Nakao, Ko-ichi Magishi, Yusuke Wakabayashi, Youichi Murakami, Kuniyuki Koyama, Kazuma Hirota, Yasuo Endoh, Satoru Kunii, Antiferro-Quadrupole Ordering of CeB6 Studied by Resonant X-Ray Scattering. Journal of the Physical Society of Japan. ,vol. 70, pp. 1857- 1860 ,(2001) , 10.1143/JPSJ.70.1857
Sumio Ishihara, Sadamichi Maekawa, Theory of Anomalous X-Ray Scattering in Orbital-Ordered Manganites Physical Review Letters. ,vol. 80, pp. 3799- 3802 ,(1998) , 10.1103/PHYSREVLETT.80.3799
Y. Tokura, Orbital Physics in Transition-Metal Oxides Science. ,vol. 288, pp. 462- 468 ,(2000) , 10.1126/SCIENCE.288.5465.462