Electronic Structure of Charge- and Spin-Controlled Sr1-(x+y)Lax+yTi1- xCrxO3
Physical Review Letters 96 巻 6 号
067203-1-067203-4 頁
2006-02-14 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Electronic Structure of Charge- and Spin-Controlled Sr1-(x+y)Lax+yTi1- xCrxO3
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| 作成者 |
Yamakawa K.
Saitoh Tomohiko
Inaba Jungo
Katsufuji Takuro
Higashiguchi Mitsuharu
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| 収録物名 |
Physical Review Letters
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| 巻 | 96 |
| 号 | 6 |
| 開始ページ | 067203-1 |
| 終了ページ | 067203-4 |
| 抄録 |
We present the electronic structure of Sr1-(x+y)Lax+yTi1-xCrxO3 investigated by high-resolution photoemission spectroscopy. In the vicinity of the Fermi level, it was found that the electronic structure was composed of a Cr 3d local state with the t2g3 configuration and a Ti 3d itinerant state. The energy levels of these Cr and Ti 3d states are well interpreted by the difference of the charge-transfer energy of both ions. The spectral weight of the Cr 3d state is completely proportional to the spin concentration x irrespective of the carrier concentration y, indicating that the spin density can be controlled by x as desired. In contrast, the spectral weight of the Ti 3d state is not proportional to y, depending on the amount of Cr doping.
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| 著者キーワード |
strontium compounds
lanthanum compounds
band structure
photoelectron spectra
carrier density
localised states
charge transfer states
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2006-02-14 |
| 権利情報 |
Copyright (c) 2006 The American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.96.067203
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.96.067203
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