Optical Reflectivity Spectra Measured on Cleaved Surfaces of La_<1-x>Sr_xMnO_3:Evidence Against Extremely Small Drude Weight
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概要
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Opticttl re[1ectix'ity spectra xxvere uaaeasttr'ed on cleaxzed strrf'aces of Laj .Sr.lNzInO3 situgle crys-tals (O< x< 0.30). Tlae optical cotaductivity crew) shoxvs, keejoitag situgle-cottaporaent natture, arairtcoherent-to-colaererat crossoxxer xvitla a spita polarizsttion of condttcting e. electrons. The<v(cu)spectrtrzaa of' the f'er'rornagraetic-naaetatl Lag.7gSr0.3gllN'Itu03 is cla?xr?tcterized b.5' a pronoutaced Drtrde-like conajcone?ut xvitla large spectral xveiglut beloxv xl.6 eV, xvhich yields a large effective carrierrxvzraxber N:(( consistetat xxxith the results of' otluer techniqtres. Tlae present restrlt dertaonstratesth?tt tlae previotrs restrlt of "81112111 Drtrde weight" is dtre to a deterioratiot? of the sata?ple strrf'ace,?tt least f'or tlae 1aeavil3' doped regiott.
- 社団法人日本物理学会の論文
- 1999-06-15
著者
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SUGAI Shunji
Department of Physics,Faculty of Science,Osaka University
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MORITOMO Yutaka
Center for Integrated Research in Science and Engineering (CIRSE), Nagoya University
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Iida Kenji
Department Of Physics Nagoya University
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Sugai S
Tokyo Inst. Technol. Tokyo Jpn
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Sugai S
Department Of Physics Nagoya University
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Sugai Shunji
Department Of Physics Division Of Material Science Nagoya University
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TAKENAKA Koshi
Department of Crystalline Materials Science, Nagoya University
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NAKAMURA Arao
Center for Integrated Research in Science and Engineering, Nagoya University
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Nakamura A
Center For Integrated Research In Science And Engineering (cirseu) Nagoya University
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Nakamura Arao
Center For Integrated Research For Science And Engineering (cirse) And Department Of Applied Physics
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Takenaka Koshi
Riken (the Institute Of Physical And Chemical Research)
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Takenaka Koshi
Department Of Crystalline Materials Science Nagoya University
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Takenaka Koshi
Department Of Physics Faculty Of Science Nagoya University:(present Address)riken (the Institute Of
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Moritomo Yutaka
Center For Integrated Research For Science And Engineering (cirse) And Department Of Applied Physics
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Takenaka Koshi
Department Of Physics Nagoya University
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SAWAKI Yuko
Department of Physics, Nagoya University
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Sawaki Yuko
Department Of Physics Nagoya University
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Iida Kenji
Department Of Food Production Science Obihiro University Of Agriculture And Veterinary Medicine
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Moritomo Yutaka
Center For Integrated Research In Science And Engineering (cirse) Nagoya University
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