Menbers

Personal History

Dr. Hiroyuki Yamada

Curriculum Vitae

March 1995
B. S., Dept. Chemistry, Univ. of Tokyo
March 1997
M. S., Dept. Chemistry, Univ. of Tokyo
March 2000
Dr. Sci., Dept. Chemistry, Univ. of Tokyo
"Syntheses, Single Crystal Growth, and Physical Properties of Vanadium Bronzes AxV2O5"
April 2000
Research Scientist, JRCAT Tokura Group
April 2002
Posdoc at Correlated Electron Research Center (CERC), National Insititute of Advanced Industrial Science and Technology (AIST)
April 2004
JST-CREST researcher
January 2005
Rearch Scientist
Correlated Electron Research Center (CERC), National Insititute of Advanced Industrial Science and Technology (AIST)
April 2008
Research Scientist, Correlated Electron Heterointerfaces Group
Nanoelectronics Research Institute
National Insititute of Advanced Industrial Science and Technology (AIST)
April 2011
Research Scientist, Correlated Electronics Group
Electronics and Photonics Research Institute
National Insititute of Advanced Industrial Science and Technology (AIST)
October 2011
Senier Researcher, Correlated Electronics Group
Electronics and Photonics Research Institute
National Insititute of Advanced Industrial Science and Technology (AIST)
May 2011
- May 2012
Visiting Research Scientist, CNRS/Thales, France

Research Area

Oxide Thin FIlms/ Superlattices/ Interfaces, Physics and Chemistry of Correlated Electron Systems

Research Achievements

- Characterization of correlated electron oxide interfaces with nonlinear magneto-optical effect
- Improved TMR devices based on interface engineering
- Novel magneto-electric functionalites at 'tricolor' oxide superlattices
- Syntheses of single-crystalline thin films of new materials (SrFeO3, Ru-doped LSMO, Bi oxides, etc.)

Publications

  1. “Field-Modulation Imaging of Ferroelectric Domains in Molecular Single-Crystal Films”, Y. Uemura, S. Arai, J. Tsutsumi, S. Matsuoka, H. Yamada, R. Kumai, S. Horiuchi, A. Sawa, and T. Hasegawa, Physical Review Applied 11, 014046 (2019).
  2. “Charge disproportionation of Mn 3d and O 2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices”, H. Nakao, C. Tabata, Y. Murakami, Y. Yamasaki, H. Yamada, S. Ishihara, and M. Kawasaki, Physical Review B 98, 245146 (2018).
  3. “Growth and ferroelectric properties of yttrium-doped hafnium oxide/indium-tin oxide polycrystalline heterostructures with sharp and uniform interfaces”, H. Yamada, Y. Toyosaki, and A. Sawa, Journal of Applied Physics 124, 105305 (2018).
  4. “Time-Dependent Negative Capacitance Effects in Al2O3/BaTiO3 Bilayers”, Y. J. Kim, H. Yamada, T. Moon, Y. J. Kwon, C. H. An, H. J. Kim, K. D. Kim, Y. H. Lee, S. D. Hyun, M. H. Park, and C. S. Hwang, Nano Letters 16, 4375 (2016).
  5. “Coherent Epitaxy of a Ferroelectric Heterostructure on a Trilayered Buffer for Integration into Silicon”, H. Yamada, Y. Toyosaki, and A. Sawa, Advanced Electronic Materials 2, 201500334 (2016).
  6. “Magnetic and electronic states in (LaMnO3)2(SrMnO3)2 superlattice exhibiting a large negative magnetoresistance”, H. Nakao, T. Sudayama, M. Kubota, J. Okamoto, Y. Yamasaki, Y. Murakami, H. Yamada, A. Sawa, and K. Iwasa, Physical Review B 92, 245104 (2015).
  7. “Ca doping dependence of resistive switching characteristics in ferroelectric capacitors comprising Ca-doped BiFeO3”, L. Liu, A. Tsurumaki-Fukuchi, H. Yamada, and A. Sawa, Journal of Applied Physics 118, 204014 (2015).
  8. “Strong Surface-Termination Effect on Electroresistance in Ferroelectric Tunnel Junctions”, H. Yamada, A. Tsurumaki-Fukuchi, M. Kobayashi, T. Nagai, Y. Toyosaki, H. Kumigashira, and A. Sawa, Advanced Functional Materials 25, 2708 (2015).
  9. “Depth Profiling Charge Accumulation from a Ferroelectric into a Doped Mott Insulator”, M. Marinova, J. E. Rault, A. Gloter, S. Nemsak, G. K. Palsson, J.-P. Rueff, C. S. Fadley, C. Carretero, H. Yamada, K. March, V. Garcia, S. Fusil, A. Barthelemy, O. Stephan, C. Colliex, and M. Bibes, Nano Letters 15, 2533 (2015).
  10. “Modeling of hysteretic Schottky diode-like conduction in Pt/BiFeO3/SrRuO3 switches”,E. Miranda, D. Jimenez, A. Tsurumaki-Fukuchi, J. Blasco, H. Yamada, J. Sune, and A. Sawa, Applied Physics Letters, 105, 082904 (2014).
  11. “Resistive switching characteristics in dielectric/ferroelectric composite devices improved by post-thermal annealing at relatively low temperature”, A. Tsurumaki-Fukuchi, H. Yamada, and A. Sawa, Applied Physics Letters, 104, 092903 (2014).
  12. “High-performance ferroelectric memory based on fully patterned tunnel junctions”, S. Boyn, S. Girod, V. Garcia, S. Fusil, S. Xavier, C. Deranlot, H. Yamada, C. Carretero, E. Jacquet, M. Bibes, A. Barthelemy, and J. Grollier, Applied Physics Letters, 104, 052909 (2014).
  13. “Multilevel recording in Bi-deficient Pt/BFO/SRO heterostructures based on ferroelectric resistive switching targeting high-density information storage in nonvolatile memories”, D. Jimenez, E. Miranda, A. Tsurumaki-Fukuchi, H. Yamada, J. Sune, and A. Sawa, Applied Physics Letters 103, 263502 (2013).
  14. “Phase diagram of Ca1-xCexMnO3 thin films studied by x-ray magnetic circular dichroism”, T. Harano, G. Shibata, K. Yoshimatsu, K. Ishigami, V.K.Verma, Y. Takahashi, T. Kadono, T. Yoshida, A. Fujimori, T. Koide, F.-H. Chang, H.-J. Lin, D.-J. Huang, C.-T. Chen, P.-H. Xiang, H. Yamada, and A. Sawa,Solid State Communications 174, 30 (2013).
  15. “Resistive switching artificially induced in a dielectric/ferroelectric composite diode”, A. Tsurumaki-Fukuchi, H. Yamada, and A. Sawa, Applied Physics Letters, 103, 152903 (2013).
  16. “Ferroelectric control of a Mott insulator”, H. Yamada, M. Marinova, P. Altuntas, A. Crassous, L. Begon-Lours, S. Fusil, E. Jacquet, V. Garcia, K. Bouzehouane, A. Gloter, J. E. Villegas, A. Barthelemy, and Manuel Bibes, Scientific Reports 3, 2834 (2013).
  17. “Giant Electroresistance of Super-tetragonal BiFeO3-Based Ferroelectric Tunnel Junctions”, H. Yamada, V. Garcia, S. Fusil, S. Boyn, M. Marinova, A. Gloter, S. Xavier, J. Grollier, E. Jacquet, C. Carretero, C. Deranlot, M. Bibes, and A. Barthelemy, ACS Nano 7, 5385 (2013).
  18. “Role of doped Ru in coercivity-enhanced La0.6Sr0.4MnO3 thin film studied by x-ray magnetic circular dichroism”, T. Harano, G. Shibata, K. Ishigami, Y. Takashashi, V. K. Verma, V. R. Singh, T. Kadono, A. Fujimori1, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, T. Koide, H. Yamada, A. Sawa, M. Kawasaki, Y. Tokura, and A. Tanaka, Applied Physics Letters 102, 222404 (2013).
  19. “Electrolyte-Gated SmCoO3 Thin-Film Transistors Exhibiting Thickness-Dependent Large Switching Ratio at Room Temperature”, P.-H. Xiang, S. Asanuma, H. Yamada, H. Sato, I. H. Inoue, H. Akoh, A. Sawa, M. Kawasaki, and Y. Iwasa, Advanced Materials 25, 2158 (2013).
  20. “Phase diagrams of strained Ca1-xCexMnO3 films”, P.-H. Xiang, H. Yamada, H. Akoh, and A. Sawa, Journal of Applied Physics 112, 113703 (2012).
  21. “A ferroelectric memristor”, A. Chanthbouala, V. Garcia, R. O. Cherifi, K. Bouzehouane, S. Fusil, X. Moya, S. Xavier, H. Yamada, C. Deranlot, N. D. Mathur, M. Bibes, A. Barthelemy and J. Grollier, Nature Materials 11, 860 (2012).
  22. “Disorder Promotes Ferromagnetism: Rounding of the Quantum Phase Transition in Sr1-xCaxRuO3”, L. Demko , S. Bordacs, T. Vojta, D. Nozadze, F. Hrahsheh, C. Svoboda, B. Dora, H. Yamada, M. Kawasaki, Y. Tokura, and I. Kezsmarki, Physical Review Letters 108, 185701 (2012).
  23. “Impact of Bi Deficiencies on Ferroelectric Resistive Switching Characteristics Observed at p-Type Schottky-Like Pt/Bi1-δFeO3 Interfaces”, A. Tsurumaki, H. Yamada, and A. Sawa, Advanced Functional Materials 22, 1040 (2012).
  24. “Strain-Mediated Phase Control and Electrolyte-Gating of Electron-Doped Manganites”, P.-H. Xiang, S. Asanuma, H. Yamada, I. H. Inoue, H. Sato, H. Akoh, A. Sawa, K. Ueno, H. Yuan, H. Shimotani, M. Kawasaki, and Y. Iwasa, Advanced Materials 23, 5822 (2011).
  25. “Discrimination between photodoping- and heat-induced magnetization changes in Nd0.52Sr0.48MnO3 using a heterostructure with SrTiO3”, H. Yada, M. Matsubara, H. Matsuzaki, H. Yamada, A. Sawa, and H. Okamoto, Physical Review B 84, 045114 (2011).
  26. “Ultrafast control of magnetization by photocarrier injection in La0.9Sr0.1MnO3/SrTiO3 heterostructures”, H. Yada, M. Matsubara, H. Yamada, A. Sawa, H. Matsuzaki, and H. Okamoto, Physical Review B 83, 165408 (2011).
  27. “Tuning of the metal-insulator transition in electrolyte-gated NdNiO3 thin films”, S. Asanuma, P.-H. Xiang, H. Yamada, H. Sato, I. H. Inoue, H. Akoh, A. Sawa, K. Ueno, H. Shimotani, H. Yuan, M. Kawasaki, and Y. Iwasa, Applied Physics Letters 97, 142110 (2010).
  28. “Room temperature Mott metal-insulator transition and its systematic control in Sm1-xCaxNiO3 thin film”, P.-H. Xiang, S. Asanuma, H. Yamada, I. H. Inoue, H. Akoh and A. Sawa, Applied Physics Letters 97, 032114 (2010).
  29. “Colossal magnetoresistance accompanied with magnetorelaxor behavior in phase-separated Ca1-xCexMnO3 thin films and CaMnO3/Ca0.92Ce0.08MnO3 superlattices”, P.-H. Xiang, H. Yamada, A. Sawa, and H. Akoh, Journal of Applied Physics, 107, 063717 (2010).
  30. “Phase evolution and critical behavior in strain-tuned LaMnO3-SrMnO3 superlattices”, H. Yamada, P.-H. Xiang, and A. Sawa, Physical Review B 81, 014410 (2010).
  31. “Relationship between resistive switching characteristics and band diagrams of Ti/Pr1-xCaxMnO3 junctions”, S. Asanuma, H. Akoh, H. Yamada, and A. Sawa, Physical Review B 80, 235113 (2009).
  32. “Epitaxial-strain effect on charge/orbital order in Pr0.5Ca0.5MnO3 films”, D. Okuyama, M. Nakamura, Y. Wakabayashi, H. Itoh, R. Kumai, H. Yamada, Y. Taguchi, T. Arima, M. Kawasaki, and Y. Tokura, Applied Physics Letters 95, 152502 (2009).
  33. “Strain-controlled electronic properties and magnetorelaxor behaviors in electron-doped CaMnO3 thin films”, P. -H. Xiang, H. Yamada, A. Sawa, and H. Akoh, Applied Physics Letters, 94, 062109 (2009).
  34. “Magnetic quasidomain structures in Ru-doped La0.6Sr0.4MnO3 thin films”, M. Konoto, H. Yamada, K. Koike, H. Akoh, M. Kawasaki, and Y. Tokura, Applied Physics Letters, 93, 252503 (2008).
  35. “Magneto-optical characterization on the ferromagnetic-paramagnetic transitions in the composition-spread epitaxial film of Sr1-xCaxRuO3”, N. Hosaka, H. Yamada, Y. Shimada, J. Fujioka, S. Bordacs, I. Kezsmarki, M. Kawasaki, and Y. Tokura, Applied Physics Express, 1, 113001 (2008).
  36. “Direct observation of the spin structures of vortex domain walls in ferromagnetic nanowires”, T. Nagai, H. Yamada, M. Konoto, T. Arima, M. Kawasaki, K. Kimoto, Y. Matsui, and Y. Tokura, Physical Review B, 78, 180414 (2008).
  37. “Optical magnetoelectric effect at CaRuO3-CaMnO3 interfaces as a polar ferromagnet”, H. Yamada, N. Kida, H. Sato, H. Akoh, T. Arima, M. Kawasaki, and Y. Tokura, Appl. Phys. Lett. 92, 062508 (2008).
  38. “Negative spin polarization in (La,Sr)CoO3 probed by a magnetic tunnel junction with (La,Sr)MnO3”,Y. Ishii, H. Yamada, H. Sato, H. Akoh, M. Kawasaki, and Y. Tokura,Appl. Phys. Lett. 91, 192504 (2007).
  39. “Optical magnetoelectric effect of patterned oxide-superlattices with ferromagnetic interfaces”,N. Kida, H. Yamada, H. Sato, T. Arima, M. Kawasaki, H. Akoh, and Y. Tokura,Phys. Rev. Lett. 99, 197404　(2007).
  40. “Fermi level shift in La1-xSrxMO3 (M = Mn, Fe, Co, and Ni) probed by Schottky-like heteroepitaxial junctions with SrTi0.99Nb0.01O3”, A. Sawa, A. Yamamoto, H. Yamada, T. Fujii, M. Kawasaki, J. Matsuno, Y. Tokura, Appl. Phys. Lett. 90, 252102 (2007).
    41. 　
  41. “LaMnO3/SrMnO3 interfaces with coupled charge-spin-orbital modulation", H. Yamada, M. Kawasaki, T. Lottermoser , T. Arima, and Y. Tokura, Appl. Phys. Lett.89, 052506 (2006).
    42. 　
  42. “Improved tunneling magnetoresistance in interface engineered (La,Sr)MnO3 junctions”, Y. Ishii, H. Yamada, H. Sato, H. Akoh, Y. Ogawa, M. Kawasaki, and Y. Tokura, Appl. Phys. Lett. 89, 042509 (2006).
  43. “Ru-doped La0.6Sr0.4MnO3 thin films as a coercivity tunable electrode for magnetic tunnel junctions”,H. Yamada, M. Kawasaki, Y. Tokura, Appl. Phys. Lett. 86 : 192505 (2005).
  44. “Determination of the intrinsic anomalous Hall effect of SrRuO3”, R. Mathieu, C. U. Jung, H. Yamada, A. Asamitsu, M. Kawasaki, and Y. Tokura,Phys. Rev. B 72, 064436 (2005).
  45. “Perovskite manganite magnetic tunnel junctions with enhanced coercivity contrast”, Y. Ishii, H. Yamada, H. Sato, H. Akoh, M. Kawasaki, Y. Tokura, Appl. Phys. Lett. 87, 022509 (2005).
  46. “Observation of structural change with possible charge disproportionation in copper vanadium oxide bronze β'-Cu0.65V2O5”, JI. Yamaura, T. Yamauchi, M. Isobe, H. Yamada, Y. Ueda, J. Phys. Soc. Jpn. 73: 914-920 (2004).
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  47. “Engineered interface of magnetic oxides”, H. Yamada, Y. Ogawa, Y. Ishii, H. Sato, M. Kawasaki, H. Akoh, Y. Tokura, , Science 305: 646-648 (2004).
    48. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
  48. “Magnetic anisotropy control of SrRuO3 films by tunable epitaxial strain” , C. U. Jung, H. Yamada, M. Kawasaki, Y. Tokura, Appl. Phys. Lett. 84 : 2590-2592 (2004)
    49. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
  49. “The anomalous Hall effect and magnetic monopoles in momentum space”, Z. Fang, N. Nagaosa, K.S. Takahashi, A. Asamitsu, R. Mathieu, T. Ogasawara, H. Yamada, M. Kawasaki, Y. Tokura, K. Terakura, Science 302 : 92-95 (2003)
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  50. “Non-linear magneto-optical Kerr rotation of an oxide superlattice with artificial broken symmetry”,Y. Ogawa, H. Yamada, T. Ogasawara, T. Arima, H. Okamoto, M. Kawasaki, Y. Tokura,Phys. Rev. Lett. 90: 217403 (2003).
  51. “Perovskite oxide tricolor superlattices with artificially broken inversion symmetry by interface　effects”, H. Yamada, M. Kawasaki, Y. Ogawa, Y. Tokura ,Appl. Phys. Lett. 81 : 4793-4795 (2002).
  52. “Epitaxial growth and valence control of strained perovskite SrFeO3 films”, H. Yamada, M. Kawasaki, Y. Tokura, Appl. Phys. Lett. 80: 622-624 (2002).
  53. “Charge and sodium ordering in β-Na0.33V2O5”, P. H. M. van Loosdrecht, C. N. Presura, M. Popinciuc, D. van der Marel, G. Maris, T. T. M. Palstra, P. J. M. van Bentum, H. Yamada, T. Yamauchi, Y. Ueda, J. Superconductivity 15: 587-590 (2002).
  54. “Magnetic ordering in the mixed-valence compound β-Na0.33V2O5”, A. N. Vasil'ev, V. I. Marchenko, A. I. Smirnov, S. S. Sosin, H. Yamada, Y. Ueda, Physical Review B 64 : 174403 (2001).
  55. “Structural and electric properties of β'-CuxV2O5”,H. Yamada, Y. Ueda, J. Phys. Soc. Jpn. 69: 1437-1442 (2000).
  56. “Magnetic, electric and structural properties of β-AxV2O5(A = Na, Ag) ”, H. Yamada, Y. Ueda, J . Phys. Soc. Jpn. 68: 2735-2740 (1999).