Keio University

Faculty of Science and Technology

Department of Physics

3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
FAX: +81-45-566-1672

Eto, Mikio

Office: Bldg 22, Room 208A

Phone: ext. 47823 / +81-45-566-1676 (direct dialing)

e-mail: "rk.phys.keio.ac.jp" after "eto@".

1. Solid state physics, Material science
2. Theoretical studies of mesoscopic physics, nano-physics
3. Electronic states, transport properties and Kondo effect in quantum dots

• Superconducting diode using semiconductor quantum dots
• Go Takeuchi and M. Eto, "Superconducting Diode Effect in Double Quantum Dot Device," Journal of the Physical Society of Japan 94, 054701/1-10 (2025) (Papers of Editors' Choice). JPS Hot Topics.
• Topological properties of carbon nanotube
• R. Okuyama, W. Izumida, and M. Eto, "Topological classification of the single-wall carbon nanotube," Physical Review B 99, 115409/1-10 (2019).
• R. Okuyama, W. Izumida, and M. Eto, "Topological Phase Transition in Metallic Single-Wall Carbon Nanotube", Journal of the Physical Society of Japan 86, 013702/1-4 (2017).
• Kondo effect in quantum dots
• Rui Sakano, Tokuro Hata, Kaiji Motoyama, Yoshimichi Teratani, Kazuhiko Tsutsumi, Tomonori Arakawa, Meydi Ferrier, Richard Deblock, Mikio Eto, Kensuke Kobayashi, and Akira Oguri, "Kondo Temperature Evaluated from Linear Conductance in Magnetic Fields," Physical Review B 108, 205147 (2024).
• Y. Zhang, M. Kato, R. Sakano, and M. Eto, "Numerical simulation of quantum dot interferometer in Kondo regime," Journal of the Physical Society of Japan 93, 024702 (2024) ; OPEN ACCESS.
• Y. Zhang, R. Sakano, and M. Eto, "Kondo Effect and Phase Measurement in Double Quantum Dot in Parallel," Journal of the Physical Society of Japan 91, 014703 (2022) ; OPEN ACCESS.
• M. Eto and R. Sakano, "Fano-Kondo resonance versus Kondo plateau in an Aharonov-Bohm ring with an embedded quantum dot," Physical Review B 102, 245402 (2020) ; OPEN ACCESS.
• R. Yoshii and M. Eto, "Scaling analysis of Kondo screening cloud in a mesoscopic ring with an embedded quantum dot," Physical Review B 83, 165310 (2011).
• R. Yoshii and M. Eto, "Scaling Analysis for Kondo Effect in Quantum Dot Embedded in Aharonov-Bohm Ring," Journal of the Physical Society of Japan 77, 123714/1-4 (2008).
• D. Matsubayashi and M. Eto, "Spin splitting and Kondo effect in quantum dots coupled to noncollinear ferromagnetic leads," Phys. Rev. B 75, 165319/1-12 (2007).
• T. Sato and M. Eto, "Numerical Renormalization Group Studies of SU(4) Kondo Effect in Quantum Dots," Physica E 29, 652-655 (2005).
• M. Eto, "Enhancement of Kondo Effect in Multilevel Quantum Dots," Journal of the Physical Society of Japan 74, 95-102 (2005), "Kondo effect--40 years after the discovery".
• S. Sasaki, S. Amaha, N. Asakawa, M. Eto and S. Tarucha, "Enhanced Kondo effect via tuned orbital degeneracy in a spin 1/2 artificial atom," Physical Review Letters 93, 017205 (2004).
• M. Eto and Yu. V. Nazarov, "Enhancement of Kondo effect in quantum dots with an even number of electrons," Physical Review Letters 85, 1306 (2000).
• S. Sasaki, S. De Franceschi, J. M. Elzerman, W. G. van der Wiel, M. Eto, S. Tarucha, L. P. Kouwenhoven, "Kondo effect in an integer-spin quantum dot," Nature 405, 764 (2000).
• Spin-orbit interaction in semiconductors, Spin injection using semiconductors nano-structures
• S. Souma, A. Sawada, H. Chen, Y. Sekine, M. Eto, and T. Koga, "Spin Blocker Using the Interband Rashba Effect in Symmetric Double Quantum Wells," Physical Review Applied 4, 034010 (2015).
• T. Yokoyama, M. Eto, and Yu. V. Nazarov, "Anomalous Josephson effect by spin-orbit interaction and Zeeman effect in semiconductor nanowires," Physical Review B 89, 195407 (2014): in collaboration with Delft University of Technology, the Netherlands.
• T. Yokoyama, M. Eto, and Yu. V. Nazarov, "Josephson Current through Semiconductor Nanowire with Spin-Orbit Interaction in Magnetic Field," Journal of the Physical Society of Japan 82, 054703 (2013).
• T. Yokoyama and M. Eto, "Generation of spin-polarized current using multiterminal quantum dot with spin-orbit interaction," Physical Review B 86, 205305 (2012).
• M. Eto and T. Yokoyama, "Quantum Dot Spin Filter in Resonant Tunneling and Kondo Regimes," Journal of the Physical Society of Japan 79, 123711 (2010).
• T. Yokoyama and M. Eto, "Enhanced spin Hall effect by tuning antidot potential: Proposal for a spin filter," Physical Review B 80, 125311 (2009).
• M. Eto and and T. Yokoyama, "Enhanced spin Hall effect in semiconductor heterostructures with artificial potential," Journal of the Physical Society of Japan 78, 073710 (2009).
• M. Eto, T. Hayashi and Y. Kurotani, "Spin Polarization at Semiconductor Point Contacts in Absence of Magnetic Field," Journal of the Physical Society of Japan 74, 1934 (2005) (Paper of "Editors' Choice").
• Electron-phonon interaction in quantum dots, Optical phonon lasing
• R. Okuyama, M. Eto, and T. Brandes, "Lasing and antibunching of optical phonons in semiconductor double quantum dots," New Journal of Physics 15, 083032 (2013): in collaboration with Technische Universitat Berlin, Germany.
• R. Okuyama, M. Eto, and T. Brandes, "Optical Phonon Lasing in Semiconductor Double Quantum Dots," Journal of the Physical Society of Japan 82, 013704 (2013) (Paper of "Editors' Choice").
• A. Ueda, O. Entin-Wohlman, M. Eto, and A. Aharony, "Phonon Spectroscopy by Electric Measurements of Coupled Quantum Dots," Physical Review 82, 245317 (2010): in collaboration with Ben Grion University, Israel.
• A. Ueda and M. Eto, "Nonequilibrium transport through coupled quantum dots with electron-phonon interaction," New Journal of Physics 9, 119/1-14 (2007), in a focus issue on "Interference in mesoscopic systems."
• A. Ueda and M. Eto, "Resonant tunneling and Fano resonance in quantum dots with electron-phonon interaction," Physical Review B 73, 235353/1-12 (2006).
• A. Ueda, I. Baba, K. Suzuki and M. Eto, "Numerical Studies of Fano Resonance in Quantum dots Embedded in AB Rings," Journal of the Physical Society of Japan 72, Supplement A, 157-158 (2003).
• T. Tasai and M. Eto, "Effects of Polaron Formation in Semiconductor Quantum Dots on Transport Properties," Journal of the Physical Society of Japan 72, 1495 (2003).
• Entanglement between electron and nuclear spins in Si:P
• H. Morishita, L. S. Vlasenko, H.Tanaka, K. Semba, K. Sawano, Y. Shiraki, M. Eto, and K. M. Itoh, "Electrical Detection and Magnetic-Field Control of Spin States in Phosphorus-Doped Silicon," Physical Review B 80, 205206 (2009), in collaboration with Prof. K. M. Itoh, Keio University.
• Optical Aharonov-Bohm effect in type-II quantum dots
• H. Kim, S. Park, R. Okuyama, K. Kyhm, M. Eto, R. A. Taylor, G. Nogues, L. S. Dang, M. Potemski, K. Je, J. Kim, J. Kyhm, and J. Song, "Light Controlled Optical Aharhonov-Bohm Oscillations in a Single Quantum Ring," NANO Letters 18, 6188 (2018).
• H. D. Kim, R. Okuyama, K. Kyhm, M. Eto, R. A. Taylor, A. L. Nicolet, M. Potemski, G. Nogues, L. S. Dang, K. Je, J. Kim, J. Kyhm, K. H. Yoen, E. H. Lee, J. Y. Kim, I. K. Han, W. Choi, and J. Song, "Observation of a Biexciton Wigner Molecule by Fractional Optical Aharonov-Bohm Oscillations in a Single Quantum Ring," NANO Letters 16, 27 (2016).
• R. Okuyama, M. Eto, and H. Hyuga, "Optical Aharonov-Bohm Effect on Wigner Molecules in Type-II Semiconductor Quantum Dots," Physical Review B 83, 195311 (2011).
• S. Miyamoto, O. Moutanabbir, T. Ishikawa, M. Eto, E. E. Haller, K. Sawano, Y. Shiraki, and K. M. Itoh, "Excitonic Aharonov-Bohm effect in isotopically pure $^{70}$Ge/Si self-assembled type-II quantum dots," Physical Review B 82, 073306 (2010), in collaboration with Prof. K. M. Itoh, Keio University.
• Electronic states and Kondo effect in silicon quantum dots
• M. Eto and Y. Hada, "Kondo Effect in Silicon Quantum Dots with Valley Degeneracy," 24th Int. Conf. on Low Temperature Physics (Florida, USA, 2005).
• Y. Hada and M. Eto, "Exchange Coupling in Silicon Double Quantum Dots," Japanese Journal of Applied Physics 43, 7329-7336 (2004).
• Y. Hada and M. Eto, "Electronic States in Silicon Quantum Dots: Multivalley Artificial Atoms," Physical Review B 68, 155322 (2003).
• Entanglement of nuclear spins in quantum dots by hyperfine interaction
• M. Eto, T. Ashiwa and M. Murata, "Current-induced entanglement of nuclear spins in quantum dots," Journal of the Physical Society of Japan 73, 307 (2004).
This paper was selected in "Papers of Editors' Choice" of the journal.
• Conductance quantization in quantum point contacts of magnetic metals
• K. Ueno and M. Eto, "Mean-Field Calculations of Transport Properties through Magnetic Point Contacts," Journal of the Physical Society of Japan 72, 1501 (2003).
• K. Ueno, M. Eto and K. Kawamura, "Transport Properties through Atomic-Size Point Contacts of Multi-Band Metals," Journal of the Physical Society of Japan 71, 860-866 (2002).
• Electronic states and Kondo effect in coupled quantum dots
• T. Aono and M. Eto, "Kondo Effect in Coupled Quantum Dots under Magnetic Fields," Physical Review B 64, 73307/1-4 (2001).
• T. Aono and M. Eto, "Kondo Resonant Spectra in Coupled Quantum Dots," Phys. Rev. B 63, 125327/1-11 (2001).
• T. Aono M. Eto and K. Kawamura, "Conductance through Quantum Dot Dimer Below the Kondo Temperature," Journal of the Physical Society of Japan 67, 1860-1863 (1998).
• Many-body electronic states and transport properties in semiconductor quantum dots
• M. Eto, "Electronic States and Transport Phenomena in Quantum Dot Systems," Japanese Journal of Applied Physics, 40, 1929 (2001).
• L. P. Kouwenhoven, T. H. Oosterkamp, M. W. S. Danoesastro, M. Eto, D. G. Austing, T. Honda and S. Tarucha, "Excitation Spectra of Circular, Few-Electron Quantum Dots," Science 278, 1788 (1997).
• Shot-noise calculation in array of quantum dots
• M. Eto, "Nonequilibrium Transport Properties through Parallel Quantum Dots," Japanese Journal of Applied Physics 36, 4004-4007 (1997).
• M. Eto, "Nonequilibrium Transport Properties in One-Dimensional Array of Quantum Dots," Journal of the Physical Society of Japan 65, 2952-2962 (1996).

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