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Spin canting in nonlinear terahertz magnon dynamics revealed by magnetorefractive probing in orthoferrite
Takayuki Kurihara, Motoaki Bamba, Hiroshi Watanabe +2
We excite the spin precession in rare-earth orthoferrite YFeO3 by the magnetic field of intense terahertz pulse and probe its dynamics by transient absorption change in the near in…
One-dimensionality of the spin-polarized surface conduction and valence bands of quasi-one-dimensional Bi chains on GaSb(110)-(21)
Yoshiyuki Ohtsubo, Naoki Tokumasu, Hiroshi Watanabe +8
Surface electronic structure and its one-dimensionality above and below the Fermi level () were surveyed on the Bi/GaSb(110)-(21) surface hosting quasi-one-dimen…
100 MHz high-speed strain monitor using fiber Bragg grating and optical filter applied for magnetostriction measurements of cobaltite at magnetic fields beyond 100 T
Akihiko Ikeda, Toshihiro Nomura, Yasuhiro H. Matsuda +4
High-speed 100 MHz strain monitor using fiber Bragg grating (FBG) and an optical filter has been devised for the magnetostriction measurements under ultrahigh magnetic fields. The…
Optical signature of Weyl electronic structures in tantalum pnictides Ta ( P, As)
Shin-ichi Kimura, Hiroko Yokoyama, Hiroshi Watanabe +4
To investigate the electronic structure of Weyl semimetals Ta (P, As), optical conductivity [] spectra are measured over a wide range of photon energies and temperat…
High-speed 100 MHz strain monitor using fiber Bragg grating and optical filter for magnetostriction measurements under ultrahigh magnetic fields
Akihiko Ikeda, Toshihiro Nomura, Yasuhiro H. Matsuda +4
A high-speed 100 MHz strain monitor using a fiber Bragg grating, an optical filter, and a mode-locked optical fiber laser has been devised, which has a resolution of $ΔL/L\sim10^{-…