TY - JOUR
T1 - Enhancement of the cyclotron effective mass in U0.03Th0.97Ru2Si2
AU - Haga, Yoshinori
AU - Matsumoto, Yuji
AU - Tateiwa, Naoyuki
AU - Yamamoto, Etsuji
AU - Kimura, Noriaki
AU - Yamamura, Tomoo
AU - Fisk, Zachary
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84925337162&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/592/1/012036
DO - 10.1088/1742-6596/592/1/012036
M3 - 会議記事
AN - SCOPUS:84925337162
SN - 1742-6588
VL - 592
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012036
T2 - 2014 International Conference on Strongly Correlated Electron Systems, SCES 2014
Y2 - 7 July 2014 through 14 July 2014
ER -