H
Hiroshi Naganuma
Researcher at Tohoku University
Publications - 253
Citations - 5680
Hiroshi Naganuma is an academic researcher from Tohoku University. The author has contributed to research in topics: Magnetization & Magnetoresistance. The author has an hindex of 34, co-authored 242 publications receiving 5096 citations. Previous affiliations of Hiroshi Naganuma include Centre national de la recherche scientifique & Tokyo University of Science.
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Journal ArticleDOI
Highly efficient and tunable spin-to-charge conversion through Rashba coupling at oxide interfaces
Edouard Lesne,Yu Fu,Simón Oyarzún,Simón Oyarzún,Juan-Carlos Rojas-Sánchez,Diogo C. Vaz,Hiroshi Naganuma,Hiroshi Naganuma,Giuseppe Sicoli,Jean-Philippe Attané,Matthieu Jamet,Eric Jacquet,J.-M. George,Agnès Barthélémy,Henri Jaffrès,Albert Fert,Manuel Bibes,Laurent Vila +17 more
TL;DR: This work makes use of an interface-driven spin-orbit coupling mechanism-the Rashba effect-in the oxide two-dimensional electron system (2DES) LaAlO3/SrTiO3 to achieve spin-to-charge conversion with unprecedented efficiency.
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Long-lived ultrafast spin precession in manganese alloys films with a large perpendicular magnetic anisotropy.
Shigemi Mizukami,F. Wu,Akimasa Sakuma,Jakob Walowski,D. Watanabe,Takahide Kubota,Xuefeng Zhang,Hiroshi Naganuma,Mikihiko Oogane,Yasuo Ando,Terunobu Miyazaki +10 more
TL;DR: First-principles calculations well describe both low α and large K(u) for these alloys, and the damping constant α, characterizing macroscopic spin relaxation and being a key factor in spin-transfer-torque systems, is not larger than 0.008 for the δ=1.46 (0.88) film.
Journal ArticleDOI
Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
Edouard Lesne,Yu Fu,Simón Oyarzún,Juan-Carlos Rojas-Sánchez,Diogo C. Vaz,Hiroshi Naganuma,Giuseppe Sicoli,Jean-Philippe Attane,M. Jamet,Eric Jacquet,J.-M. George,A. Barthélémy,H. Jaffrès,A.R. Fert,Manuel Bibes,Laurent Vila +15 more
TL;DR: In this paper, the authors make use of an interface-driven spin-orbit coupling mechanism in the oxide two-dimensional electron system (2DES) LaAlO3/SrTiO3 to achieve spin-to-charge conversion with unprecedented efficiency.
Journal ArticleDOI
Ferroelectric, electrical and magnetic properties of Cr, Mn, Co, Ni, Cu added polycrystalline BiFeO3 films
TL;DR: In this article, Cr, Mn, Co, Ni, and Cu were added to polycrystalline BiFeO3 films, and their influence on the ferroelectric, electrical, and magnetic properties was investigated.
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Half-metallicity and Gilbert damping constant in Co2FexMn1−xSi Heusler alloys depending on the film composition
Takahide Kubota,Sumito Tsunegi,Mikihiko Oogane,Shigemi Mizukami,Terunobu Miyazaki,Hiroshi Naganuma,Yasuo Ando +6 more
TL;DR: The tunnel magnetoresistance ratio is as high as 75% in magnetic tunnel junctions (MTJ) with Co2FexMn1−xSi (CFMS) structures and Gilbert damping constant is minimal at x=04.