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論文

Single crystal growth and various electronic states in Yb-based compounds

広瀬 雄介*; 吉内 伸吾*; 西村 尚人*; 阪口 準也*; 榎 健太郎*; 岩川 健*; 三浦 泰直*; 杉山 清寛*; 大貫 惇睦; 摂待 力生*; et al.

Journal of the Korean Physical Society, 62(12), p.1858 - 1861, 2013/06

 被引用回数:0 パーセンタイル:0.00(Physics, Multidisciplinary)

We succeeded in growing single crystals of YbTIn$$_5$$ (T: Co, Rh, Ir), YbGa$$_4$$, YbT$$_2$$Zn$$_{20}$$ (T: Co, Rh, Ir), etc. The electronic and magnetic properties are clarified by measuring the electrical resistivity, magnetic susceptibility, magnetization, specific heat and de Haas-van Alphen effect.

論文

de Haas-van Alphen effect and Fermi surface properties in V$$_{5}$$Si$$_{3}$$

堤 泰樹*; 阪口 準也*; 三浦 泰直*; 松田 達磨; 芳賀 芳範; 竹内 徹也*; 播磨 尚朝*; 摂待 力生*; 大貫 惇睦

Journal of the Physical Society of Japan, 81(Suppl.B), p.SB027_1 - SB027_4, 2012/12

 被引用回数:0 パーセンタイル:0.00(Physics, Multidisciplinary)

We succeeded in growing high-quality single crystals of V$$_{5}$$Si$$_{3}$$ with a high melting point of 2010 $$^{circ}$$C, and carried out the electrical resistivity, specific heat, magnetic susceptibility, and the de Haas-van Alphen measurements to clarify the electronic properties. The Fermi surface is small in volume and is well explained by the result of energy band calculations. The cyclotron mass is in the range from 5.3 to 0.2 $$m_0$$ ($$m_0$$: rest mass of an electron), consistent with the electronic specific heat coefficient $$gamma$$ = 9.7 mJ/(K$$^{2}$$$$cdot$$mol).

論文

Fermi surface and superconducting properties of non-centrosymmetric LaNiC$$_2$$

広瀬 雄介*; 岸野 利彦*; 阪口 準也*; 三浦 泰直*; 本多 史憲*; 竹内 徹也*; 山本 悦嗣; 芳賀 芳範; 播磨 尚朝*; 摂待 力生*; et al.

Journal of the Physical Society of Japan, 81(11), p.113703_1 - 113703_4, 2012/11

 被引用回数:24 パーセンタイル:73.76(Physics, Multidisciplinary)

Fermi surface and superconducting properties were investigated on an non-centrosymmetric LaNiC$$_2$$ compound. Reflecting the crystal structure characteristics, the Fermi surfaces are split due to the antisymmetric spin-orbit interaction. On the other hand, thermodynamic property in the superconducting state follow the conventional BCS theory despite the splitting of Fermi surfaces.

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