長田 礎 Motoki Osada
研究分野や研究の興味
Solid state physics, (photo)electrochemistry, nanotechnology, low-dimensional quantum materials
- 東京大学 工学部第8号館 309号室
- osada_@_ap.t.u-tokyo.ac.jp (_を抜いてください)
- 03-5841-6822
略歴
10/2024–present Asst. Prof., QPEC and Applied Physics, the University of Tokyo
2022–2024 Asst. Prof., Institute for Materials Research, Tohoku University
2020–2022 Postdoctoral Scholar, Applied Physics, Stanford University
2015–2022 Research Assistant, SLAC National Accelerator Laboratory
2014–2020 Ph.D., Materials Science and Engineering, Stanford University
2010–2014 B.Eng., Metallurgical Engineering, Tokyo Institute of Technology
主要論文・業績
23. Scanning SQUID study of ferromagnetism and superconductivity in infinite-layer nickelates
R. A. Shi, B. Y. Wang, Y. Iguchi, M. Osada, K. Lee, B. H. Goodge, L. F. Kourkoutis, H. Y. Hwang, K. A. Moler
Phys. Rev. Mater. 8, 024802 (2024).
22. Linear-in-temperature resistivity for optimally superconducting (Nd,Sr)NiO2
K. Lee, B. Y. Wang, M. Osada, B. H. Goodge, T. C. Wang, Y. Lee, S. Harvey, W. J. Kim, Y. Yu, C. Murthy, S. Raghu, L. F. Kourkoutis, H. Y. Hwang
Nature 619, 7696 (2023).
21. Improvement of superconducting properties in La1−xSrxNiO2 thin films by tuning topochemical reduction temperature
M. Osada, K. Fujiwara, T. Nojima, A. Tsukazaki
Phys. Rev. Mater. 7, L051801 (2023).
20. Resolving the polar interface of infinite layer nickelate thin films
B. H. Goodge, B. Geisler, K. Lee, M. Osada, B. Y. Wang, D. Li, H. Y. Hwang, R. Pentcheva, L. F. Kourkoutis
Nat. Mater. 22, 466 (2023).
19. Geometric frustration of Jahn–Teller order in the infinite-layer lattice
W. J. Kim, M. A. Smeaton, C. Jia, B. H. Goodge, B.-G. Cho, K. Lee, M. Osada, D. Jost, A. V. Ievlev, B. Moritz, L. F. Kourkoutis, T. P. Devereaux, H. Y. Hwang
Nature 615, 237 (2023).
18. Intrinsic magnetism in superconducting infinite-layer nickelates
J. Fowlie, M. Hadjimichael, M. M. Martins, D. Li, M. Osada, B. Y. Wang, K. Lee, Y. Lee, Z. Salman, T. Prokscha, J.-M. Triscone, H. Y. Hwang, A. Suter
Nat. Phys. 18, 1043 (2022).
17. A broken translational symmetry state in an infinite-layer nickelate
M. Rossi, M. Osada, J. Choi, S. Agrestini, D. Jost, Y. Lee, H. Lu, B. Y. Wang, K. Lee, A. Nag, Y.-D. Chuang, C.-T. Kuo, S.-J. Lee, B. Moritz, T. P. Devereaux, Z.-X. Shen, J.-S. Lee, K.-J. Zhou, H. Y. Hwang, W.-S. Lee
Nat. Phys. 18, 869 (2022).
16. Orbital and spin character of doped carriers in infinite-layer nickelates
M. Rossi, H. Lu, A. Nag, D. Li, M. Osada, K. Lee, B. Y. Wang, S. Agrestini, M. Garcia-Fernandez, Y.-D. Chuang, Z. X. Shen, H. Y. Hwang, B. Moritz, K.-J. Zhou, T. P. Devereaux, W. S. Lee
Phys. Rev. B 104, L220505 (2021).
15. Insulator-to-Metal crossover near the edge of the superconducting dome in Nd1-xSrxNiO2
Y.-T. Hsu, B. Y. Wang, M. Berben, D. Li, K. Lee, C. Duffy, T. Ottenbros, W. J. Kim, M. Osada, S. Wiedmann, H. Y. Hwang, N. E. Hussey
Phys. Rev. Research 3, L042015 (2021).
14. Nickelate superconductivity without rare-earth magnetism: (La,Sr)NiO2
M. Osada, B. Y. Wang, B. H. Goodge, S. P. Harvey, K. Lee, D. Li, L. F. Kourkoutis, H. Y. Hwang
Adv. Mater. 33, 2104083 (2021).
13. Magnetic excitations in infinite-layer nickelates
H. Lu, M. Rossi, A. Nag, M. Osada, D. Li, K. Lee, B. Y. Wang, M. Garcia-Fernandez, S. Agrestini, Z. X. Shen, E. M. Been,, B. Moritz, T. P. Devereaux, J. Zaanen, H. Y. Hwang, K.-J. Zhou, W. S. Lee
Science 373, 213 (2021).
12. Isotropic Pauli-limited superconductivity in the infinite-layer nickelate Nd0.775Sr0.225NiO2
B. Y. Wang, D. Li, B. H. Goodge, K. Lee, M. Osada, S. P. Harvey, L. F. Kourkoutis, H. Y. Hwang
Nat. Phys. 17, 473 (2021).
11. Highly efficient surface charge transfer in Fe2TiO5 epitaxial thin film photoanodes
M. Osada, K. Nishio, K. Lee, M. Colletta, B. H. Goodge, W. J. Kim, L. F. Kourkoutis, H. Y. Hwang, Y. Hikita
ACS Appl. Ener. Mater. 4, 2098 (2021).
10. Doping evolution of the Mott–Hubbard landscape in infinite-layer nickelates
B. H. Goodge, D. Li, K. Lee, M. Osada, B. Y. Wang, G. A. Sawatzky, H. Y. Hwang, L. F. Kourkoutis
Proc. Natl. Acad. Sci. U.S.A. 118, e2007683118 (2021).
9. Phase diagram of infinite layer praseodymium nickelate Pr1-xSrxNiO2 thin films
M. Osada, B. Y. Wang, K. Lee, D. Li, H. Y. Hwang
Phys. Rev. Mater. 4, 121801(R) (2020).
8. Superconducting dome in Nd1-xSrxNiO2 infinite layer films
D. Li, B. Y. Wang, K. Lee, S. P. Harvey, M. Osada, B. H. Goodge, L. F. Kourkoutis, H. Y. Hwang
Phys. Rev. Lett. 125, 027001 (2020).
7. A superconducting praseodymium nickelate with infinite layer structure
M. Osada, B. Y. Wang, B. H. Goodge, K. Lee, H. Yoon, K. Sakuma, D. Li, M. Miura, L. F. Kourkoutis, H. Y. Hwang
Nano Lett. 20, 5735 (2020).
6. Aspects of the synthesis of thin film superconducting infinite-layer nickelates
K. Lee, B. H. Goodge, D. Li, M. Osada, B. Y. Wang, Y. Cui, L. F. Kourkoutis, H. Y. Hwang
APL Mater. 8, 041107 (2020).
5. Electronic structure of the parent compound of superconducting infinite-layer nickelates
M. Hepting, D. Li, C. J. Jia, H. Lu, E. Paris, Y. Tseng, X. Feng, M. Osada, E. Been, Y. Hikita, Y.-D. Chuang, Z. Hussain, K. J. Zhou, A. Nag, M. Garcia-Fernandez, M. Rossi, H. Y. Huang, D. J. Huang, Z. X. Shen, T. Schmitt, H. Y. Hwang, B. Moritz, J. Zaanen, T. P. Devereaux, W. S. Lee
Nat. Mater. 19, 381 (2020).
4. Superconductivity in an infinite-layer nickelate
D. Li, K. Lee, B. Y. Wang, M. Osada, S. Crossley, H. R. Lee, Y. Cui, Y. Hikita, H. Y. Hwang
Nature 572, 624 (2019).
3. Oxygen evolution reaction activity in IrOx/SrIrO3 catalysts: Correlations between structural parameters and the catalytic activity
K. Lee, M. Osada, H. Y. Hwang, Y. Hikita
J. Phys. Chem. Lett. 10, 1516 (2019).
2. Synthesis and electronic properties of Fe2TiO5 epitaxial thin films
M. Osada, K. Nishio, H. Y. Hwang, Y. Hikita
APL Mater. 6, 056101 (2018).
1. Log angles: Characteristic angles of crystal orientation given by the logarithm of rotation matrix
K. Hayashi, M. Osada, Y. Kurosu, Y. Miyajima, S. Onaka
Mater. Trans. 57, 507 (2016).
研究室志望の学生さんに一言
物理と化学を組み合わせることで未知の現象に出会えるのが物質科学の楽しさです。
一緒に世界を驚かせる研究をしましょう！
I always prioritize fostering an environment that is firmly rooted in values of diversity and inclusion. I believe that a wide array of perspectives and experiences significantly enriches scientific discourse and our ability to undertake meaningful work.
