Zobrazeno 1 - 10
of 11 270
pro vyhledávání: '"ishida, Y."'
Autor:
Kim, S. H., Jung, S., Seok, B., Kim, Y. S., Park, H., Otsu, T., Kobayashi, Y., Kim, C., Ishida, Y.
Publikováno v:
Review of Scientific Instruments, 92, 043905 (2021)
We describe a compact and stable setup for detecting the optical second harmonics, in which the incident plane rotates with respect to the sample. The setup is composed of rotating Fresnel-rhomb optics and a femtosecond ytterbium-doped fiber-laser so
Externí odkaz:
http://arxiv.org/abs/2104.10855
Autor:
Taupin, M., Eguchi, G., Luznik, M., Steiger-Thirsfeld, A., Ishida, Y., Kuroda, K., Shin, S., Kimura, A., Paschen, S.
Publikováno v:
Phys. Rev. B 107, 235306 (2023)
The protected surface conduction of topological insulators is in high demand for the next generation of electronic devices. What is needed to move forward are robust settings where topological surface currents can be controlled by simple means, ideal
Externí odkaz:
http://arxiv.org/abs/2010.10620
Autor:
Ishida, Y., Jung, J. K., Kim, M. S., Kwon, J., Kim, Y. S., Chung, D., Song, I., Kim, C., Otsu, T., Kobayashi, Y.
Publikováno v:
Communications Physics 3, 158 (2020)
Electron emission can be utilised to measure the work function of the surface. However, the number of significant digits in the values obtained through thermionic-, field- and photo-emission techniques is typically just two or three. Here, we show th
Externí odkaz:
http://arxiv.org/abs/2009.09765
Autor:
Ishida, Y., Chung, D., Kwon, J., Kim, Y. S., Soltani, S., Kobayashi, Y., Merriam, A. J., Yu, L., Kim, C.
We investigate how the direction of polarized light can affect the dichroism pattern seen in angle-resolved photoemission spectroscopy. To this end, we prepared a sample composed of highly-oriented Bi(111) micro-crystals that macroscopically has infi
Externí odkaz:
http://arxiv.org/abs/2007.02178
Autor:
Shimojima, T., Suzuki, Y., Nakamura, A., Mitsuishi, N., Kasahara, S., Shibauchi, T., Matsuda, Y., Ishida, Y., Shin, S., Ishizaka, K.
Publikováno v:
Nat. Commun. 10, 1946 (2019)
The electronic nematic phase is an unconventional state of matter that spontaneously breaks the rotational symmetry of electrons. In iron-pnictides/chalcogenides and cuprates, the nematic ordering and fluctuations have been suggested to have as-yet-u
Externí odkaz:
http://arxiv.org/abs/1905.07572
Autor:
Ishida, Y., Shin, S.
Publikováno v:
Rev. Sci. Instrum. 89, 043903 (2018)
The distribution of photoelectrons acquired in angle-resolved photoemission spectroscopy can be mapped onto energy-momentum space of the Bloch electrons in the crystal. The explicit forms of the mapping function $f$ depend on the configuration of the
Externí odkaz:
http://arxiv.org/abs/1710.03450
Autor:
Ishida, Y., Togashi, T., Yamamoto, K., Tanaka, M., Kiss, T., Otsu, T., Kobayashi, Y., Shin, S.
Publikováno v:
Rev. Sci. Instrum. 85, 123904 (2014)
The paper describes a time- and angle-resolved photoemission apparatus consisting of a hemispherical analyzer and a pulsed laser source. We demonstrate 1.48-eV pump and 5.90-eV probe measurements at the >10.5-meV and >240-fs resolutions by use of fai
Externí odkaz:
http://arxiv.org/abs/1612.04910
Publikováno v:
Rev. Sci. Instrum. 87, 123902 (2016)
The paper describes a time-resolved photoemission (TRPES) apparatus equipped with a Yb-doped fiber laser system delivering 1.2-eV pump and 5.9-eV probe pulses at the repetition rate of 95 MHz. Time and energy resolutions are 11.3 meV and ~310 fs, res
Externí odkaz:
http://arxiv.org/abs/1612.03026
Autor:
Zhang, Peng, Ma, J. -Z., Ishida, Y., Zhao, L. -X., Xu, Q. -N., Lv, B. -Q., Yaji, K., Chen, G. -F., Weng, H. -M., Dai, X., Fang, Z., Chen, X. -Q., Fu, L., Qian, T., Ding, H., Shin, S.
Publikováno v:
Phys. Rev. Lett. 118, 046802 (2017)
We discover a pair of spin-polarized surface bands on the (111) face of grey arsenic by using angle-resolved photoemission spectroscopy (ARPES). In the occupied side, the pair resembles typical nearly-free-electron Shockley states observed on noble-m
Externí odkaz:
http://arxiv.org/abs/1608.03029
Autor:
Kuroda, Kenta, Yaji, Koichiro, Nakayama, M., Harasawa, A., Ishida, Y., Watanabe, S., Chen, C. -T., Kondo, T., Komori, F., Shin, S.
Publikováno v:
Phys. Rev. B 94, 165162 (2016)
Interference of spin-up and spin-down eigenstates depicts spin rotation of electrons, which is a fundamental concept of quantum mechanics and accepts technological challenges for the electrical spin manipulation. Here, we visualize this coherent spin
Externí odkaz:
http://arxiv.org/abs/1608.00479