Low-temperature physics group

There is a class of U- and Ce-based compounds that is called "heavy fermion materials". These are strongly correlated metals that have large effective mass, and display complex physical properties such as superconductivity, metamagnetism and antiferromagnetism. The phenomena are physically interesting and much effort has been made to clarify the mechanism. In our laboratory the investigations of these "heavy fermion materials" are made in terms of the resitivity, specific heat and magnetization measurements. We developed a high sensitivity magnetometer which can measure static magnetization at extremely low temperatures down to 40 mK. Our recent activities are on metamagnetic behavior of CeRu2Si2, magnetization process in CeB6, elastic response of URu2Si2, non-BCS type properties in UPt3, non-Fermi liquid behavior in diluted compounds of URu2Si2 and so on. We also use the strong magnetic field facilities at the Institution of Solid State Physics and at Tohoku University.

Staffs

 Professor : Dr. Toshiro Sakakibara   sakaki@mary.phys.hokudai.ac.jp   ex. 3551
 Lecturer : Dr. Hiroshi Amitsuka      amiami@mary.phys.hokudai.ac.jp   ex. 3484
 Instructor : Dr. Kenichi Tenya       tenya@mary.phys.hokudai.ac.jp    ex. 3583

Students

 Tetsuo Honma         (D3)            thonma@mary.phys.hokudai.ac.jp
 Kazuyuki Matsuhira   (D2)            matuhira@mary.phys.hokudai.ac.jp
 Takashi Tayama       (D1)            tayama@mary.phys.hokudai.ac.jp
 Masataka Ikeda       (M2)            ikeda@mary.phys.hokudai.ac.jp
 Keitaro Kuwahara     (M2)            kuwa@mary.phys.hokudai.ac.jp
 Akiko Nomachi        (M1)
 Tatsuro Yoshida      (M1)
 Kenichi Ikeda        (B4)
 Kaori Kikuchi        (B4)
 Shinji Yasunami      (B4)