Key Publications
K. Kitagawa, T. Takayama, Y. Matsumoto, A. Kato, R. Takano, Y. Kishimoto, S. Bette, R. Dinnebier, G. Jackeli & H. Takagi: A spin–orbital-entangled quantum liquid on a honeycomb lattice Nature 554, 341 (2018). http://www.nature.com/articles/nature25482
S. Fujiyama, H. Ohsumi, T. Komesu, J. Matsuno, B.J. Kim, M. Takata, T. Arima, and H. Takagi: Two-Dimensional Heisenberg Behavior of Jeff = 1/2 Isospins in the Paramagnetic State of the Spin-Orbital Mott Insulator Sr2IrO4 Physical Review Letters 108, 247212 (2012). http://prl.aps.org/abstract/PRL/v108/i24/e247212
Y. Kohsaka, T. Hanaguri, M. Azuma, M. Takano, J. C. Davis, and H. Takagi:Visualization of the emergence of the pseudogap state and the evolution to superconductivity in a lightly hole-doped Mott insulator Nature Physics 8, 534 (2012). http://www.nature.com/nphys/journal/v8/n7/full/nphys2321.html
T. Hanaguri, S. Niitaka, K. Kuroki, H. Takagi: Unconventional s-Wave Superconductivity in Fe(Se,Te) Science 328, 474-476 (2010). http://www.sciencemag.org/content/328/5977/474.full.pdf?sid=a0319441-0281-4d31-ad28-d599c7478cb0
B. J. Kim, H. Ohsumi, T. Komesu, S. Sakai, T. Morita, H. Takagi, and T. Arima:Phase-sensitive observation of a spin-orbital Mott state in Sr2IrO4 Science 323, 1329-1332 (2009). http://www.sciencemag.org/content/323/5919/1329.full.pdf?sid=5b300997-5207-448c-93d0-fba824595c1b
T. Hanaguri, Y. Kohsaka, M. Ono, M. Maltseva, P. Coleman, I. Yamada, M. Azuma, M. Takano, K. Ohishi, and H. Takagi: Coherence Factors in a High-Tc Cuprate Probed by Quasi-particle Scattering off Vortices Science 323, 923-926 (2009). http://www.sciencemag.org/content/323/5916/923.full.pdf?sid=2fec8e7d-f6c5-475e-9957-4547170b0831
Y. Okamoto, M. Nohara, H. Aruga-Katori and H. Takagi: Spin-Liquid State in S=1/2 Hyper-Kagome Antiferromagnet Na4Ir3O8 Physical Review Letters 99, 137207 (2007). http://prl.aps.org/abstract/PRL/v99/i13/e137207
K. Takenaka, and H. Takagi: Giant negative thermal expansion in Ge-doped anti-perovskite manganese nitrides Applied Physics Letters 87 (26), 261902 (2005). http://apl.aip.org/resource/1/applab/v87/i26/p261902_s1
T. Hanaguri, C. Lupien, Y. Kohsaka, D. H. Lee, M. Azuma, M. Takano, H. Takagi and J. C. Davis: A ‘checkerboard’ electronic crystal state in lightly hole-doped Ca2-xNaxCuO2Cl2 Nature 430,1001-1005 (2004). http://www.nature.com/nature/journal/v430/n7003/full/nature02861.html
C. Urano, M. Nohara, S. Kondo, F. Sakai, H. Takagi, T. Shiraki, and T. Okubo:LiV2O4 Spinel as a Heavy-Mass Fermi Liquid: Anomalous Transport and Role of Geometrical Frustration Physical Review Letters 85, 1052-1055, (2000). http://prl.aps.org/abstract/PRL/v85/i5/p1052_1
R.J.Cava, H. Takagi, B.Batlogg, H. W. Zandbergen, J. J. Krajewski, W. F .Peck, Jr., R. B.van Dover, R.J.Felder, T.Siegrist, K.Mizuhashi, J. O. Lee, H.Eisaki, S.A.Carter and S.Uchida: Superconductivity at 23 K in Yttrium Palladium Boride Carbide Nature 367, 146-147 (1994). http://www.nature.com/nature/journal/v367/n6459/pdf/367146a0.pdf
H. Takagi, B. Batlogg, H. L. Kao, J. Kwo, R. J. Cava, J. J. Krajewski and W. F. Peck: Systematic Evolution of Temperature-Dependent Resistivity in La2-xSrxCuO4 Physical Review Letters 69, 2975-2978 (1992). http://prl.aps.org/abstract/PRL/v69/i20/p2975_1
H. Takagi, Y. Tokura and S. Uchida: Superconductivity Produced by Electron-Doping in CuO2-Layered Compounds Physical Review Letters 62, 1197 (1989). http://prl.aps.org/abstract/PRL/v62/i10/p1197_1
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