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Journal Articles

Quadrupole effects in tetragonal crystals PrCu$$_2$$Si$$_2$$ and DyCu$$_2$$Si$$_2$$

Mitsumoto, Keisuke*; Goto, Saori*; Nemoto, Yuichi*; Akatsu, Mitsuhiro*; Goto, Terutaka*; Dung, N. D.*; Matsuda, Tatsuma; Haga, Yoshinori; Takeuchi, Tetsuya*; Sugiyama, Kiyohiro*; et al.

Journal of Physics; Condensed Matter, 25(29), p.296002_1 - 296002_8, 2013/07

 Times Cited Count:2 Percentile:5.49(Physics, Condensed Matter)

Journal Articles

Characteristic heavy fermion properties in YbCu$$_2$$Si$$_2$$ and YbT$$_2$$Zn$$_{20}$$ (T: Co, Rh, Ir)

Onuki, Yoshichika; Yasui, Shinichi*; Matsushita, Masaki*; Yoshiuchi, Shingo*; Oya, Masahiro*; Hirose, Yusuke*; Dung, N. D.*; Honda, Fuminori*; Takeuchi, Tetsuya*; Settai, Rikio*; et al.

Journal of the Physical Society of Japan, 80(Suppl.A), p.SA003_1 - SA003_6, 2011/12

Journal Articles

Heavy fermion state and quantum criticality

Onuki, Yoshichika; Settai, Rikio*; Honda, Fuminori*; Dung, N. D.*; Ishikura, Tatsuro*; Takeuchi, Tetsuya*; Matsuda, Tatsuma; Tateiwa, Naoyuki; Nakamura, Akio; Yamamoto, Etsuji; et al.

Physica B; Condensed Matter, 405(9), p.2194 - 2199, 2010/05

 Times Cited Count:1 Percentile:6.88(Physics, Condensed Matter)

Journal Articles

Fermi surface properties of YbCu$$_2$$Si$$_2$$

Matsuda, Tatsuma; Dung, N. D.*; Haga, Yoshinori; Ikeda, Shugo*; Yamamoto, Etsuji; Ishikura, Tatsuro*; Endo, Toyoaki*; Takeuchi, Tetsuya*; Settai, Rikio*; Onuki, Yoshichika

Physica Status Solidi (B), 247(3), p.757 - 759, 2010/03

 Times Cited Count:2 Percentile:12.75(Physics, Condensed Matter)

We succeeded in growing high-quality single crystals of a heavy electron compound YbCu$$_2$$Si$$_2$$. The electronic specific heat coefficient $$gamma$$ is determined to be 150 mJ/K$$^2cdot$$mol, which is consistent with the $$A$$ value of the electrical resistivity from Kadowaki-Woods relation. We succeeded in observing the de Haas-van Alphen (dHvA) oscillations. The dHvA frequencies and large cyclotron effective masses in YbCu$$_2$$Si$$_2$$ are highly different from those in a non-4$$f$$ reference compound YCu$$_2$$Si$$_2$$. From these dHvA results, the heavy electron state of YbCu$$_2$$Si$$_2$$ is characterized by the large contribution of 4$$f$$-electrons to the volume of the Fermi surface and also to the strong enhancement of effective mass caused by the spin fluctuations.

Journal Articles

Crystal structure and magnetic properties of the new ternary actinide compounds AnPd$$_5$$Al$$_2$$ (An = U, Np)

Haga, Yoshinori; Aoki, Dai*; Homma, Yoshiya*; Ikeda, Shugo; Matsuda, Tatsuma; Yamamoto, Etsuji; Sakai, Hironori; Tateiwa, Naoyuki; Dung, N. D.*; Nakamura, Akio; et al.

Journal of Alloys and Compounds, 464(1-2), p.47 - 50, 2008/09

 Times Cited Count:19 Percentile:68.97(Chemistry, Physical)

Oral presentation

Metamagnetic transition of heavy fermion U$$_2$$Zn$$_{17}$$

Ikeda, Shugo; Haga, Yoshinori; Tateiwa, Naoyuki; Matsuda, Tatsuma; Sakai, Hironori; Dung, N. D.; Yamamoto, Etsuji; Nakamura, Akio; Yamada, Tsutomu*; Sugiyama, Kiyohiro*; et al.

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