Electronic Phase Control of Transition Metal Oxides Research Team
Research Areas
Our key concept is to harness a variety of electronic phases (electron liquid, liquid crystal and solid) realized in correlated d-electrons of transition-metal oxides; Drastic responses induced by competition among the electronic phases and multiple electronic degrees of freedom (charge, spin and orbital) enable us to develop novel electronic functionalities. By utilizing controllability of transition-metal oxides, we will elucidate quantum electronic phases and develop new functional materials.
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Research Subject
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List of Selected Publications
| (1) | Yamazaki, H., Shannon, N., and Takagi, H.: "Interplay between superconductivity and ferromagnetism in epitaxial Nb(110)/Au(111)/Fe(110) trilayers." Phys. Rev. B 73, 094507 (2006). |
| (2) | Yamamoto, A., Sharma, P.A., Okamoto, Y., Nakao, A., Aruga Katori, H., Niitaka, S., Hashizume, D., and Takagi, H.: "Metal-insulator transition in a pyrochlore-type ruthenium oxide, Hg2Ru2O7." J. Phys. Soc. Jpn. 76, 043703 (2007). |
| (3) | Takeshita, N., Terakura, C., Tokura, Y., Yamamoto, A., and Takagi, H.: "Pressure-Induced Transition from a Correlated Insulator to a Fermi Liquid Observed in Geometrically Frustrated Hg2Ru2O7 Pyrochlore." J. Phys. Soc. Jpn. 76, 063707 (2007). |
| (4) | Okamoto, Y., Nohara, M., Aruga Katori, H., and Takagi, H.: "Spin-Liquid State in S=1/2 Hyper-Kagome Antiferromagnet Na4Ir3O8." Phys. Rev. Lett. 99, 137207 (2007). |
| (5) | Jönsson, P. E., Takenaka, K., Niitaka, S., Sasagawa, T., Sugai, S. and Takagi, H.: "Correlation-Driven Heavy-Fermion Formation in LiV2O4." Physical Review Letters 99, 167402 (2007). |
| (6) | Matsuda, M., Chung, J.-H., Park, S., Sato, T. J., Matsuno, K., Aruga. Katori, H., Takagi, H., Kakurai, K., Kamazawa, K., Tsunoda, Y., Kagomiya, I., Henley, C. L. and Lee, S.-H.: "Frustrated minority spins in GeNi2O4." EPL 82, 37006 (2008). |