Original Papers

1. Anomalous behavior of critical current in a superconducting film triggered by DC plus terahertz current

F. Sekiguchi, H. Narita, H. Hirori, T. Ono, and Y. Kanemitsu

Nature Communications 15, 4435 (2024)

2. Enhancing high harmonic generation in GaAs by elliptically polarized light excitation

F. Sekiguchi, M.Sakamoto, K. Nakagawa, H. Tahara, S. A. Sato, H. Hirori, and Y. Kanemitsu

Physical Review B 108, 205201 (2023) Editors’ Suggestion

3. Generation of third-harmonic spin oscillation from strong spin precession induced by terahertz magnetic near fields

Z. Zhang, F. Sekiguchi, T. Moriyama, S. C. Furuya, M. Sato, T. Satoh, Y. Mukai, K. Tanaka, T. Yamamoto, H. Kageyama, Y. Kanemitsu, H. Hirori

Nature Communications 14, 1795 (2023)

4. Polarization anomaly in high harmonics in the crossover region between perturbative and extreme nonlinearity in GaAs

F. Sekiguchi, G. Yumoto, H. Hirori, and Y. Kanemitsu

Physical Review B 106, L241201 (2022)

5. Rapidly expanding spin-polarized exciton halo in a two-dimensional halide perovskite at room temperature

G. Yumoto, F. Sekiguchi, R. Hashimoto, T. Nakamura, A. Wakamiya, and Y. Kanemitsu

Science Advances 8, eabp8135 (2022)

6. Nonequilibrium quasistationary spin disordered state in α-RuCl3 

R. B. Versteeg, A. Chiocchetta, F. Sekiguchi, A. Sahasrabudhe, J. Wagner, A. I. R. Aldea, K. Budzinauskas, Zhe Wang, V. Tsurkan, A. Loidl, D. I. Khomskii, S. Diehl, and P. H. M. van Loosdrecht

Physical Review B 105, 224428 (2022)

7. Size-controlled quantum dots reveal the impact of intraband transitions on high-order harmonic generation in solids 

K. Nakagawa, H. Hirori, S. A. Sato, H. Tahara, F. Sekiguchi, G. Yumoto, M. Saruyama, R. Sato, T. Teranishi, and Y. Kanemitsu

Nature Physics 18, 874 (2022)

8. Slowdown of photoexcited spin dynamics in the non-collinear spin-ordered phases in skyrmion host GaV4S8

F. Sekiguchi, K. Budzinauskas, P. Padmanabhan, R. B. Versteeg, V. Tsurkan, I. Kézsmárki, F. Foggetti, S. Artyukhin, and P. H. M. van Loosdrecht

Nature Communications 13, 3212 (2022)

9. Generation of wavelength-tunable few-cycle pulses in the mid-infrared at repetition rates up to 10 kHz

Y. Sanari, F. Sekiguchi, K. Nakagawa, N. Ishii, Y. Kanemitsu, and H. Hirori

Optics Letters 46, 5280 (2021)

10. Ultrastrong coupling between THz phonons and photons caused by an enhanced vacuum electric field

Z. Zhang, H. Hirori, F. Sekiguchi, A. Shimazaki, Y. Iwasaki, T. Nakamura, A. Wakamiya and Y. Kanemitsu

Physical Review Research 3, L032021 (2021)

11. Strong spin-orbit coupling inducing Autler-Townes effect in lead halide perovskite nanocrystals

G. Yumoto, H. Hirori, F. Sekiguchi, R. Sato, M. Saruyama, T. Teranishi and Y. Kanemitsu

Nature Communications 12, 3026 (2021)

12. Enhancing the Hot-Phonon Bottleneck Effect in a Metal Halide Perovskite by Terahertz Phonon Excitation

F. Sekiguchi, H. Hideki, G. Yumoto, A. Shimazaki, T. Nakamura, A. Wakamiya, and Y. Kanemitsu

Physical Review Letters 126, 077401 (2021)

13. Interference effects in high-order harmonics from colloidal perovskite nanocrystals excited by an elliptically polarized laser

K. Nakagawa, H. Hirori, Y. Sanari, F. Sekiguchi, R. Sato, M. Saruyama, T. Teranishi, and Y. Kanemitsu

Physical Review Materials 5, 016001 (2021)

14. Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4S8

P. Padmanabhan, F. Sekiguchi, R. B. Versteeg, E. Slivina, V. Tsurkan, S. Bordács, I. Kézsmárki, and P. H. M. van Loosdrecht

Physical Review Letters 122, 107203 (2019)

15. Coupled dynamics of long-range and cluster-internal spin order in the cluster Mott insulator Cu2OSeO3

R. B. Versteeg, J. Zhu, C. Boguschewski, F. Sekiguchi, A. Sahasrabudhe, K. Budzinauskas, P. Padmanabhan, P. Becker, D. I. Khomskii, and P. H. M. van Loosdrecht

Physical Review B 100, 064401 (2019)

16. Terahertz field-induced ionization and perturbed free induction decay of excitons in bulk GaAs

Y. Murotani, M. Takayama, F. Sekiguchi, C. Kim, H. Akiyama and R. Shimano

Journal of Physics D: Applied Physics 51, 114001 (2018)

17. Anomalous Metal Phase Emergent on the Verge of an Exciton Mott Transition

F. Sekiguchi, T. Mochizuki, C. Kim, H. Akiyama, L. N. Pfeiffer, K. W. West, and R. Shimano

Physical Review Letters 118, 067401 (2017)

18. Rate Equation Analysis of the Dynamics of First-order Exciton Mott Transition

F. Sekiguchi and R. Shimano

Journal of the Physical Society of Japan 86, 103702 (2017)

19. Single-Shot Terahertz Time-Domain Spectroscopy in Pulsed High Magnetic Fields

G. T. Noe, I. Katayama, F. Katsutani, J. J. Allred, J. A. Horowitz, D. M. Sullivan, Q. Zhang, F. Sekiguchi, G. L. Woods, M. C. Hoffmann, H. Nojiri, J. Takeda, and J. Kono

Optics Express 24, 30328 (2016)

20. Excitonic correlation in the Mott crossover regime in Ge

F. Sekiguchi and R. Shimano

Physical Review B 91, 155202 (2015)