Takahiro Tomimatsu

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Journal of the Physical Society of Japan | 2001

Makoto Yoshida; Keiichi Koyama; Takahiro Tomimatsu; Makoto Shirakawa; Akira Ochiai; Mitsuhiro Motokawa

Cyclotron resonance (CR) measurements on a single crystal of LaBi have been performed in the temperature range from 1.6 to 30 K and at the frequency range from 50 to 190 GHz. The two CR absorption lines are observed for H || [100] at low temperature, which corresponds to effective masses m CR * of 0.33 m 0 and 0.65 m 0 , respectively. These values are in agreement with m QO * of α-branch (0.4 m 0 ) and γ-branch (0.63 m 0 ) estimated from acoustic dHvA effect measurements.

Journal of the Physical Society of Japan | 2001

Keiichi Koyama; Takahiro Tomimatsu; Makoto Yoshida; Dexin Li; Mitsuhiro Motokawa

Cyclotron resonance measurements on a single crystal of GdSb have been performed in the temperature range from 50 to 1.7 K, and the cyclotron effective mass of the carriers has been determined. The...

Journal of the Physical Society of Japan | 2002

Makoto Yoshida; Keiichi Koyama; Takahiro Tomimatsu; Makoto Shirakawa; Akira Ochiai; Mitsuhiro Motokawa

Cyclotron resonance (CR) measurements on a single crystal of LaSb have been performed in the temperature range from 1.6 K to 40 K in the frequency range from 50 to 190 GHz. We have observed three C...

Journal of Physics and Chemistry of Solids | 2002