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

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

doi:10.1088/1742-6596/592/1/012036

Enhancement of the cyclotron effective mass in U_0.03Th_0.97Ru₂Si₂

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

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

Electronic states of a dilute uranium alloy U_0.03Th_0.97Ru₂Si₂ 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 language	English
Article number	012036
Journal	Journal of Physics: Conference Series
Volume	592
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/592/1/012036
State	Published - 2014
Event	2014 International Conference on Strongly Correlated Electron Systems, SCES 2014 - Grenoble, France Duration: 2014/07/07 → 2014/07/14

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1088/1742-6596/592/1/012036

Cite this

@article{ab854ff2c91a4ed59365f49823e08c83,

title = "Enhancement of the cyclotron effective mass in U0.03Th0.97Ru2Si2",

abstract = "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.",

author = "Yoshinori Haga and Yuji Matsumoto and Naoyuki Tateiwa and Etsuji Yamamoto and Noriaki Kimura and Tomoo Yamamura and Zachary Fisk",

year = "2014",

doi = "10.1088/1742-6596/592/1/012036",

language = "英語",

volume = "592",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

note = "2014 International Conference on Strongly Correlated Electron Systems, SCES 2014 ; Conference date: 07-07-2014 Through 14-07-2014",

}

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