Optical Reflectivity Study on Al-Substituted La0.825Sr0.175MnO3: Unconventional Localization State Induced by Vacancies in the Ferromagnetic Kondo Lattice
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概要
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Al-substituted La0.825Sr0.175MnO3 shows a resistance minimum at low temperature. However, this cannot be explained within a simple localization picture because the optical conductivity is characterized not only by a non-Drude infrared peak but also by an additional absorption at about 3 eV. A small amount (∼3%) of vacancy (Al impurity) in the ferromagnetic Kondo lattice changes the overall character of the charge dynamics and induces the unconventional localization state.
- Physical Society of Japanの論文
- 2001-07-15
著者
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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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Sawaki Yuko
Department Of Physics Nagoya University
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Sugai Shunji
Department of Physics, Nagoya University, Nagoya 464-8602
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Takenaka Koshi
Department of Physics, Nagoya University, Nagoya 464-8602
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