Publication

Paper

1. S. Iwakiri, A. Mestre-Torà, E. Portolés, M. Visscher, M. Perego, G. Zheng, T. Taniguchi, K. Watanabe, M. Sigrist, T. Ihn, and K. Ensslin "Tunable quantum interferometer for correlated moiré electrons" Nature Communications 15,  390 (2024) LINK. [Featured in Nature Communications Editors’ Highlights]

2. G. Zheng, E. Portolés, A. Mestre-Torá, M. Perego, T. Taniguchi, K. Watanabe, P. Rickhaus, F. K. de Vries, T. Ihn, K. Ensslin, and S. Iwakiri, "Gate-defined superconducting channel in magic-angle twisted bilayer graphene"  arXiv:2312.11698v1 (2023)

3. S. Iwakiri, J. Miller, F. Lang, J. Prettenthaler, T. Taniguchi, K. Watanabe, S. S. Lee, P. Becker, D. Günther, T. Ihn, and K. Ensslin "High mobility transport in isotopically-enriched 12C and 13C exfoliated graphene", Phys. Rev. Research 5, 043212 (2023) LINK.

4. S. Iwakiri, L. V. Ginzburg, M. P. Roosli, Y. Meir, A. Stern, Ch. Reichl, M. Berl, W. Wegscheider, T. Ihn, and K. Ensslin "Nonlinear response of 2DEG in the quantum Hall regime". Phys. Rev. Research 5, L032046 (2023). LINK

5. M. Shinozaki, J. Igarashi, S. Iwakiri, T. Kitada, K. Hayakawa. B. Jinnai, T. Otsuka, S. Fukami, K. Kobayashi, and H. Ohno"Nonlinear conductance in nanoscale CoFeB/MgO magnetic tunnel junctions with perpendicular easy axis", Phys. Rev. B 107, 094436 (2023)  LINK.

6. S. Iwakiri, F. K. de Vries, E. Portolés, G. Zheng, T. Taniguchi, K. Watanabe, T. Ihn, K. Ensslin, "Gate-defined electron interferometer in bilayer graphene", Nano Lett., 22, 15, 6292–6297 (2022).  LINK arXiv

7. E. Portolés, S. Iwakiri, G. Zheng, P. Rickhaus, T. Taniguchi, K. Watanabe, T. Ihn, K. Ensslin, F. K. de Vries, "A Tunable Monolithic SQUID in Twisted Bilayer Graphene", Nat. Nanotechnol. 17, 1159–1164 (2022). LINK

8. S.Iwakiri, S. Sugimoto, Y. Niimi, Y. Kozuka, Y. K. Takahashi, S. Kasai, and K. Kobayashi "Negative correlation between the linear and the nonlinear conductance in magnetic tunnel junctions",  Phys. Rev. B 103, 245427 (2021). LINK

9. K. Fujiwara, S. Iwakiri, M. Watanabe, R. Nakamura, M. Yokoi, K. Kobayashi, and Y. Niimi, "Charge density wave transitions in mechanically-exfoliated NbSe3 devices",  Jpn. J. Appl. Phys. 60, 070904 (2021). LINK

10. T. Ohta, M. Tokuda, S. Iwakiri, K. Sakai, B. Driesen, Y. Okada, K. Kobayashi, and Y. Niimi, "Butterfly-shaped magnetoresistance in van der Waals ferromagnet Fe5GeTe2",  AIP Advances 11, 025014 (2021). LINK

11. S. Norimoto, S. Iwakiri, M. Yokoi, T. Arakawa, Y. Niimi, and K. Kobayashi, “Etching process of narrow wire and application to tunable-barrier electron pump”, Rev. Sci. Instrum.  91, 085110 (2020).  LINK

12. S. Sugimoto, S.Iwakiri, Y. Niimi, K. Kobayashi, Y. Kozuka, Y. K. Takahashi, and S. Kasai, "Multiple modes of a single spin torque oscillator under the non-linear region", AIP Adv. 10, 075115 (2020). LINK

13. S.Iwakiri, S. Sugimoto, Y. Niimi, K. Kobayashi, Y. Kozuka, Y. K. Takahashi, and S. Kasai, "Generation of multipeak spectrum of spin torque oscillator in non-linear regime", Appl. Phys. Lett. 117, 022406 (2020). LINK

14. S.Iwakiri, S. Sugimoto, Y. Niimi, K. Kobayashi, Y. K. Takahashi, and S. Kasai, "Observation of the magnetization metastable state in a perpendicularly magnetized nanopillar with asymmetric potential landscape", Appl. Phys. Lett. 115, 092407 (2019). LINK

15. T. Arakawa, S. Norimoto, S. Iwakiri, T. Asano, and Y. Niimi, "Cavity resonator for circularly polarized microwave irradiation mounted on a cryostat", Rev. Sci. Instrum. 90, 084707 (2019). LINK

16. S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”, Appl. Phys. Express 10, 053001/1-4 (2017). LINK

17. T. Sugihara, M. Mihara, S. Iwakiri (10 th), (+19 authors), S. Momota, “NMR detection of short-lived β-emitter 12N implanted in water”, Hyperfine Interactions 238, 1/1-5 (2017). LINK

18. M. Tanaka, M. Fukuda, S. Iwakiri (14 th), (+14 authors), S. Yamaoka, “Measurements of Radiative Capture Cross Sections at Big Bang Energies”, JPS Conference Proceedings 14, 020106/1-3 (2017). LINK

Review Article

1. S. Iwakiri, "Tunable quantum interferometer for strongly-correlated materials", Solid State Physics (Tokyo, Japan),  (2024). (reviewed).

Conference/Symposium

1.  S. Iwakiri, F. K. de Vries, E. Portolés, G. Zheng, T. Taniguchi, K. Watanabe, T. Ihn, K. Ensslin, "Gate-defined electron interferometer in bilayer graphene",  FQMD2020 (Valencia, Spain, June 20-24th) (2022) (poster).

2. S. Norimoto, S. Iwakiri, M. Yokoi, T. Arakawa, Y. Niimi, and K. Kobayashi, “Fine etching process for fabrication of single electron sources”, 20th Anniversary of Superconducting Qubits (SQ20th): Progress and Future Directions (Tsukuba International Congress Center (EPOCHAL TSUKUBA), Tsukuba, Japan, May 13-15, 2019) (poster).

3.  S. Iwakiri, S. Norimoto, T. Asano, T. Arakawa, S. Kasai, Y. Niimi, K. Kobayashi, “Magnon-assisted nonlinear conduction in CoFeB/MgO/CoFeB Magnetic Tunnel Junction”, the International Symposium for Materials Scientists III (ISMS III) “Inspiration for Innovation by Interaction” (Osaka University, Toyonaka, Japan, December 3-4, 2018) (poster)

4.  S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”, Interdisciplinary Symposium for Up-and-coming Materials Scientists (ISUMS2017) (Osaka University Hall, Osaka, Japan, June 8-9, 2017) (poster) 

5.  S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”, Nanophysics, from fundamental to applications, Qui Nhon, Vietnam (July, 2017). 

6.  S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”, Interdisciplinary Symposium for Up-and-coming Material Scientists, Osaka, Japan (June, 2017)

Presentation

1. S. Iwakiri, “Tunable quantum interferometer for correlated moire electrons”, Ohtsuka-lab. Seminar (Tohoku University, Sendai, Japan, September 15th) (2023) (invited oral presentation).

2. S. Iwakiri, “Tunable quantum interferometer for correlated moire electrons”, condensed matter seminar (Institution for solid state physics, Kashiwa, Japan, September 13th) (2023) (invited oral presentation).

3. S. Iwakiri, “Tunable quantum interferometer for correlated moire electrons”, MANA seminar (National Institute for Materials Science, Tsukuba, Japan, September 12th) (2023) (invited oral presentation).

4. S. Iwakiri, “Tunable quantum interferometer for correlated moire electrons”, Interactive Materials Science Cadet program seminar (Osaka University, Osaka, Japan, September 11th) (2023) (invited oral presentation).

5. S. Iwakiri, “Gate-defined electron interferometer in twisted bilayer graphene”, Different aspects of spintronics in 2D and 3D materials (Instituto Superior T ́ecnico, Lisbon, Portugal, June 2nd) (2023) (invited oral presentation).

6. S. Iwakiri, “Gate-defined electron interferometer in twisted bilayer graphene”, Condensed matter seminar (Weizmann Institute of Science, Rehovot, Israel, Feb 20th) (2023) (invited oral presentation).

7. S. Iwakiri, “Gate-defined electron interferometer in twisted bilayer graphene”, ICFO seminar(Barcelona, Spain, Feb 9th) (2023) (invited oral presentation).

8. S. Iwakiri, “Gate-defined electron interferometer in twisted bilayer graphene”, Condensed matter seminar(Tokyo, Japan, Oct 21st) (2022) (invited oral presentation).

9. S. Iwakiri, “Quantum devices in twisted bilayer graphene”, Condensed matter seminar(Tokyo, Japan, Sep. 16th)(2022) (invited oral presentation).

10. S. Iwakiri, F. K. de Vries, E. Portol ́es, G. Zheng, T. Taniguchi, K. Watanabe, T. Ihn, K. Ensslin, “Gate-defined electron interferometer in bilayer graphene”, FQMD2020 (Valencia, Spain, June 20-24th) (2022) (poster).

11. S. Norimoto, S. Iwakiri, M. Yokoi, T. Arakawa, Y. Niimi, and K. Kobayashi, “Fine etching process for fabrication of single electron sources”, 20th Anniversary of Superconducting Qubits (SQ20th): Progress and Future Directions (Tsukuba International Congress Center (EPOCHAL TSUKUBA), Tsukuba, Japan, May 13-15, 2019) (poster).

12. S. Iwakiri, S. Norimoto, T. Asano, T. Arakawa, S. Kasai, Y. Niimi, K. Kobayashi, “Magnon-assisted nonlinear conduction in CoFeB/MgO/CoFeB Magnetic Tunnel Junction”, the International Symposium for Materials Scientists III (ISMS III) “Inspiration for Innovation by Interaction” (Osaka University, Toyonaka, Japan, December 3-4, 2018)(poster).

13. S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”, Interdisciplinary Symposium for Up-and-coming Materials Scientists (ISUMS2017) (Osaka University Hall, Osaka, Japan, June 8-9, 2017) (poster).

14. S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”,

Nanophysics, from fundamental to applications, Qui Nhon, Vietnam (July, 2017).

15. S. Iwakiri, Y. Niimi, K. Kobayashi, “Dynamics of pure spin current in high-frequency quantum regime”,

Interdisciplinary Symposium for Up-and-coming Material Scientists, Osaka, Japan (June, 2017).