Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Keisuke Fukutani"'
Autor:
Keisuke Fukutani, Han Woong Yeom, Jae Young Kim, Jun Sung Kim, Chang Il Kwon, Ki Jeong Kong, Roland Stania
Publikováno v:
Nature Physics. 17:1024-1030
Excitons, quasiparticles of electrons and holes bound by Coulombic attraction, are created transiently by light and play an important role in optoelectronics, photovoltaics and photosynthesis. They are also predicted to form spontaneously in a small-
Autor:
Keisuke Fukutani
Publikováno v:
Vacuum and Surface Science. 62:740-741
Autor:
Eike F. Schwier, Chang Il Kwon, Keisuke Fukutani, Roland Stania, Han Woong Yeom, J. W. Jung, Jun Sung Kim, Kenya Shimada
Publikováno v:
Physical Review Letters. 123
We demonstrate that the excitonic insulator ground state of ${\mathrm{Ta}}_{2}{\mathrm{NiSe}}_{5}$ can be electrically controlled by electropositive surface adsorbates. Our studies utilizing angle-resolved photoemission spectroscopy reveal intriguing
Publikováno v:
ACS applied materialsinterfaces. 11(27)
Super-steep two-terminal electronic devices using NbO2, which abruptly switch from insulator to metal at a threshold voltage (Vth), offer diverse strategies for energy-efficient and high-density de...
Autor:
Keisuke, Fukutani, Roland, Stania, Jiwon, Jung, Eike F, Schwier, Kenya, Shimada, Chang Il, Kwon, Jun Sung, Kim, Han Woong, Yeom
Publikováno v:
Physical review letters. 123(20)
We demonstrate that the excitonic insulator ground state of Ta_{2}NiSe_{5} can be electrically controlled by electropositive surface adsorbates. Our studies utilizing angle-resolved photoemission spectroscopy reveal intriguing wave-vector-dependent d
Autor:
Peter A. Dowben, T. M. Nenchuk, Nataliia S. Vorobeva, Alexander Sinitskii, Simeon Gilbert, Keisuke Fukutani, Lu Wang, Angel Torres, Archit Dhingra, Wai-Ning Mei, Alexey Lipatov, Jia-Shiang Chen, P. V. Galiy, Andrew J. Yost
Publikováno v:
Semiconductor Science and Technology. 36:069501
Autor:
Nataliia S. Vorobeva, P. V. Galiy, Jia-Shiang Chen, Wai-Ning Mei, Peter A. Dowben, Alexander Sinitskii, Alexey Lipatov, Andrew J. Yost, T. M. Nenchuk, Keisuke Fukutani, Angel Torres, Archit Dhingra, Simeon Gilbert, Lu Wang
Publikováno v:
Semiconductor Science and Technology. 35:065009
The surface termination of In4Se3(001) and the interface of this layered trichalcogenide, with Au, was examined using x-ray photoemission spectroscopy. Low energy electron diffraction indicates that the surface is highly crystalline, but suggests an
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 184:318-322
We investigated the electron–phonon coupling (EPC), in the vicinity of the Fermi level, for the surface states of the Au-covered Mo(1 1 2) surface from high-resolution angle resolved photoemission data taken parallel to the surface corrugation (i.e
Publikováno v:
Applied Surface Science. 256:4796-4800
Atomic-scale structure of the growth of a gold film on (1 1 2) plane of Mo single crystal was investigated by means of low energy electron diffraction (LEED) and scanning tunneling microscopy (STM) up to two monolayers (ML) of gold coverage. Both LEE
Publikováno v:
Surface Science. 603:2964-2971
Differences are seen in the adsorption of 1,2-di-iodobenzene, 1,3-di-iodobenzene, and 1,4-di-iodobenzene on graphite, as a function of exposure, using core level photoemission. The isomer 1,3-di-iodobenzene exhibits significant differences from 1,2-d