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Journal Articles

De Haas-van Alphen effect in UIr

Yamamoto, Etsuji; Haga, Yoshinori; Shishido, Hiroaki*; Nakawaki, Hirokazu*; Inada, Yoshihiko*; Settai, Rikio*; Onuki, Yoshichika

Physica B; Condensed Matter, 312-313, p.302 - 303, 2002/03

 Times Cited Count:16 Percentile:61.22(Physics, Condensed Matter)

We have succeeded in growing a high-quality single crystal of UIr with the monoclinic structure by the Czochralski pulling method in a tetra-arc furnace. UIr is a ferromagnetic compound. Its Curie temperature $$T_C$$ is 46 K and the magnetic moment is found to be oriented along the [1 0 $=1] direction by the magnetization measurement. The magnetic moment is 0.5 $mu_{rm B}$$/U. We have observed the de Haas-van Alphen (dHvA) oscillation. All the detected branches have heavy cyclotron effective masses ranging from 9.6 to 32 $$m_0$$. They are consistent with the electronic specific heat coefficient $$gamma$$=48.5 mJ/K$$^2cdot$$mol.

Journal Articles

Quasi-two-dimensional Fermi surfaces of the heavy fermion superconductor CeIrIn$$_5$$

Haga, Yoshinori; Inada, Yoshihiko*; Harima, Hisatomo*; Oikawa, Kenichi*; Murakawa, Masao*; Nakawaki, Hirokazu*; Tokiwa, Yoshifumi; Aoki, Dai*; Shishido, Hiroaki*; Ikeda, Shugo*; et al.

Physical Review B, 63(6), p.060503_1 - 060503_4, 2001/02

 Times Cited Count:145 Percentile:97.43(Materials Science, Multidisciplinary)

We observed the de Haas-van Alphen oscillation in the heavy fermion compound CeIrIn5. The topology of the Fermi surface is found to be neary cylindrical, reflecting the unique tetragonal structure. Observed branches are well explained by the 4f-itinerant band model. The cyclotron masses are large, 20-30 m0, which are one order larger than the corresponding band masses.

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