2011 Fiscal Year Final Research Report
Electric Field Induced Phase Changes in Transition Metal Oxides
| Project/Area Number |
19104008
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKAKI Hidenori 東京大学, 大学院・理学系研究科, 教授 (40187935)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAYAMA Tomohiro 東京大学, 大学院・新領域創成科学研究科, 助教 (40435657)
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| Co-Investigator(Renkei-kenkyūsha) |
HWANG Harold スタンフォード大学, 応用物理学科, 教授 (30361611)
HANAGURI Tetsuo 独立行政法人理化学研究所, 高木磁性研究室, 専任研究員 (40251326)
MATSUNO Jobu 独立行政法人理化学研究所, 高木磁性研究室, 専任研究員 (00443028)
INOUE Isao 独立行政法人産業技術総合研究所, エレクトロニクス部門, 主任研究員 (00356502)
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| Project Period (FY) |
2007 – 2011
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| Keywords | 酸化物トランジスタ / 超伝導 / 抵抗変化メモリ / スピン軌道相互作用 |
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| Research Abstract |
We aimed at understanding the basic physics behind oxide electronics and exploiting novel electric-field induced phenomena. An insulator to superconductor transition was achieved in two-dimensional electron system formed at the channel of SrTiO3 transistor. We also succeeded in visualizing conductive filaments, which were produced by reduction of base oxides, in resistive memories composed of binary transition-metal oxides. In heavy 5d Ir oxides with strong spin-orbit coupling, we discovered novel electronic phases such as spin-orbital Mott insulator.
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Research Products
(15 results)
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[Journal Article]2011
Author(s)
K. Ishii, I. Jarrige, M. Yoshida, K. Ikeuchi, J. Mizuki, K. Ohashi, T. Takayama, J. Matsuno, and H. Takagi
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Journal Title
Physical Review B
Volume: 83
Pages: 115120
DOI
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