TY - JOUR
T1 - Quasi-two-dimensional Fermi surfaces of the heavy-fermion superconductor Ce2PdIn8
AU - Götze, K.
AU - Klotz, J.
AU - Gnida, D.
AU - Harima, H.
AU - Aoki, D.
AU - Demuer, A.
AU - Elgazzar, S.
AU - Wosnitza, J.
AU - Kaczorowski, D.
AU - Sheikin, I.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/9/21
Y1 - 2015/9/21
N2 - We report low-temperature de Haas-van Alphen (dHvA) effect measurements in magnetic fields up to 35 T of the heavy-fermion superconductor Ce2PdIn8. The comparison of the experimental results with band-structure calculations implies that the 4f electrons are itinerant rather than localized. The cyclotron masses estimated at high field are only moderately enhanced, 8m0 and 14m0, but are substantially larger than the corresponding band masses. The observed angular dependence of the dHvA frequencies suggests quasi-two-dimensional Fermi surfaces in agreement with band-structure calculations. However, the deviation from ideal two-dimensionality is larger than in CeCoIn5, to which Ce2PdIn8 bears a lot of similarities. This subtle distinction accounts for the different superconducting critical temperatures of the two compounds.
AB - We report low-temperature de Haas-van Alphen (dHvA) effect measurements in magnetic fields up to 35 T of the heavy-fermion superconductor Ce2PdIn8. The comparison of the experimental results with band-structure calculations implies that the 4f electrons are itinerant rather than localized. The cyclotron masses estimated at high field are only moderately enhanced, 8m0 and 14m0, but are substantially larger than the corresponding band masses. The observed angular dependence of the dHvA frequencies suggests quasi-two-dimensional Fermi surfaces in agreement with band-structure calculations. However, the deviation from ideal two-dimensionality is larger than in CeCoIn5, to which Ce2PdIn8 bears a lot of similarities. This subtle distinction accounts for the different superconducting critical temperatures of the two compounds.
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U2 - 10.1103/PhysRevB.92.115141
DO - 10.1103/PhysRevB.92.115141
M3 - Article
AN - SCOPUS:84942475391
VL - 92
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 11
M1 - 115141
ER -