Enhancement of the cyclotron effective mass in U0.03Th0.97Ru2Si2

Yoshinori Haga, Yuji Matsumoto, Naoyuki Tateiwa, Etsuji Yamamoto, Noriaki Kimura, Tomoo Yamamura, Zachary Fisk

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Electronic states of a dilute uranium alloy U0.03Th0.97Ru2Si2 have been investigated by using de Haas-van Alphen (dHvA) measurements on single crystal samples. Quantum oscillations were successfully observed for the field along the principal axes. The dHvA frequency of the observed branches roughly agrees with those of the reference compound ThRu2Si2, indicating the change of Fermi surface volume is not significant. On the other hand, the dHvA amplitude is strongly diminished compared to ThRu2Si2. Furthermore, cyclotron effective masses for corresponding branches are strongly enhanced. The latter effects are indicative of the strong scattering as well as the mass renormalization due to 5f moments.

Original languageEnglish
Article number012036
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2014
Event2014 International Conference on Strongly Correlated Electron Systems, SCES 2014 - Grenoble, France
Duration: 2014 Jul 72014 Jul 14


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